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Lead-free perovskite solar cells - How fluoride additives improve quality
Using a clever combination of measurement methods at BESSY II and with NMR at the Humboldt-University Berlin, they were able to show that fluoride prevents the oxidation of tin and leads to a more homogeneous film formation with fewer defects.
Future information technologies: Topological materials for ultrafast spintronics
Using time- and spin-resolved methods at BESSY II, the physicists explored how, after optical excitation, the complex interplay in the behavior of excited electrons in the bulk and on the surface results in unusual spin dynamics.
Future Information Technologies: Germanium telluride's hidden properties at the...
Germanium Telluride is an interesting candidate material for spintronic devices. At BESSY II, a Helmholtz-RSF Joint Research Group has revealed how the spin texture switches by ferroelectric polarization within individual nanodomains.
Order in the disorder: density fluctuations in amorphous silicon discovered
Such a-Si:H thin films have been used for decades in solar cells, TFT displays, and detectors. The results show that three different phases form within the amorphous matrix, which influences the quality and lifetime of the semiconductor layer.
User research at BESSY II: Formation of a 2D meta-stable oxide in reactive...
A research team from the Max Planck Institute for Chemical Energy Conversion has now described an important phenomenon that can occur when metal alloys are exposed to reactive environments at the synchrotron source BESSY II.
BESSY II: Experiment shows for the first time in detail how electrolytes become...
For the first time an experiment was developed at BESSY II that shows how electrolytes become metallic. The transition to the state is shown by a change of colour from blue to gold. The publication even appears on the front page of SCIENCE Magazine.
User research at BESSY II: How new materials increase the efficiency of direct...
A group from Brazil and an HZB team have investigated a novel composite membrane for ethanol fuel cells. It consists of the polymer Nafion, in which nanoparticles of a titanium compound are embedded by the rarely explored melt extrusion process.
Corona research: Consortium of Berlin research and industry seeks active...
The Berlin biotech company Molox GmbH and a team at HZB have initiated a consortium of regional research groups and BASF. They want to identify a starting point for the development of a potential active substance against the new coronavirus.
Coronavirus SARS-CoV2: BESSY II data accelerate drug development
At the Berlin X-ray source BESSY II, researchers have decoded a protein involved in the replication of the corona virus. Analysing the 3D architecture allows the systematic development of drugs which inhibit the reproduction of the virus.
Ernst-Eckhard-Koch-Award and Innovation Award for Research in Synchrotron...
This year, the circle of friends of the HZB awarded the Ernst Eckhard Koch Prize to two young scientists for their outstanding PhD theses. The European Synchrotron Radiation Innovation Award went to a team of physicists from DESY and PSI.
X-ray microscopy at BESSY II reveals how antimalaria-drugs might work
An international team has now been able to investigate malaria pathogens in red blood cells under natural conditions using X-ray microscopy at BESSY II, ALBA and ESRF. They show which mechanisms are used by active substances to attack the pathogens.
Physicists develop "time machine" for materials research
Researchers from Martin Luther University Halle-Wittenberg (MLU), Freie Universität Berlin and Technische Universität München will develop fast electronics for data acquisition at BESSY II. This will enable researchers to evaluate the data more extensively - ...
World record in tomography: Watching how metal foam forms
Researchers from the HZB and the Paul Scherrer Institute have developed a more powerful imaging method with which more than 200 three-dimensional tomographic X-ray images can be taken every second during measurement intervals of just several minutes.
Charge transfer within transition-metal dyes analysed
Transition-metal complexes in dye-based solar cells are responsible for converting light into electrical energy. A model of spatial charge separation within the molecule has been used to describe this conversion. However, an analysis at BESSY II shows that ...
Utrafast magnetism: electron-phonon interactions examined at BESSY II
How fast can a magnet switch its orientation and what are the microscopic mechanisms at play ? These questions are of first importance for the development of data storage and computer chips. Now, an HZB team at BESSY II has for the first time been able to ...
Laser-driven Spin Dynamics in Ferrimagnets: How does the Angular Momentum flow?
A team of researchers led by scientists from the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI) has now been able to follow the flow of angular momentum during ultrafast optical demagnetization in a ferrimagnetic iron-gadolinium ...
3D tomographic imagery reveals how lithium batteries age
Lithium batteries lose amp-hour capacity over time. Microstructures can form on the electrodes with each new charge cycle, which further reduces battery capacity. Now an HZB team together with battery researchers from Forschungszentrum Jülich, the University ...
High-efficiency thermoelectric materials: new insights into tin selenide
Tin selenide might considerably exceed the efficiency of current record holding thermoelectric materials made of bismuth telluride. However, it was thought its efficiency became enormous only at temperatures above 500 degrees Celsius. Now measurements at the ...
HZB contributions to special edition on Ultrafast Dynamics with X-ray Methods
In the new special issue of the "Philosophical Transactions of the Royal Society of London", internationally renowned experts report on new developments in X-ray sources and ultrafast time-resolved experiments. HZB physicists have also been invited to ...
Godehard Wüstefeld receives the Horst Klein Research Prize
The physicist Dr. Godehard Wüstefeld was awarded the Horst Klein Research Prize at the annual conference of the German Physical Society. The award recognizes his outstanding scientific achievements in accelerator physics in the development of BESSY II and ...
Water is more homogeneous than expected
In order to explain the known anomalies in water, some researchers assume that water consists of a mixture of two phases even under ambient conditions. However, new X-ray spectroscopic analyses at BESSY II, ESRF and Swiss Light Source show that this is not ...
Transition metal complexes: mixed works better
A team at BESSY II has investigated how various iron-complex compounds process energy from incident light. They were able to show why certain compounds have the potential to convert light into electrical energy. The results are important for the development ...
Graphene on the way to superconductivity
Scientists at HZB have found evidence that double layers of graphene have a property that may let them conduct current completely without resistance. They probed the bandstructure at BESSY II with extremely high resolution ARPES and could identify a flat area ...
Blue phosphorus - mapped and measured for the first time
Until recently, the existence of "blue" phosphorus was pure theory: Now an HZB team was able to examine samples of blue phosphorus at BESSY II for the first time and confirm via mapping of their electronic band structure that this is actually this exotic ...
HZB researchers boost the efficiency of silicon solar cells
The efficiency of a solar cell is one of its most important parameters. It indicates what percentage of the solar energy radiated into the cell is converted into electrical energy. The theoretical limit for silicon solar cells is 29.3 percent due to physical ...
Future information technologies: nanoscale heat transport under the microscope
A team of researchers from the Helmholtz-Zentrum Berlin (HZB) and the University of Potsdam has investigated heat transport in a model system comprising nanometre-thin metallic and magnetic layers. Similar systems are candidates for future high-efficiency ...
World record: Fastest 3D tomographic images at BESSY II
An HZB team has developed an ingenious precision rotary table at the EDDI beamline at BESSY II and combined it with particularly fast optics. This enabled them to document the formation of pores in grains of metal during foaming processes at 25 tomographic ...
Insight into catalysis through novel study of X-ray absorption spectroscopy
An international team has made a breakthrough at BESSY II. For the first time, they succeeded in investigating electronic states of a transition metal in detail and drawing reliable conclusions on their catalytic effect from the data. These results are ...
Helmholtz International Fellow Award for Nils Mårtensson
The Helmholtz Association has presented the Swedish physicist Nils Mårtensson with a Helmholtz International Fellow Award. The synchrotron expert of the University of Uppsala, who heads the nobel comitee for physics, cooperates closely with the ...
Writing and deleting magnets with lasers
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia in Charlottesville, USA have found a way to write and delete magnets in an alloy using a laser beam ...
LEAPS join forces with the European Commission to strengthen Europe’s leading...
"A world where European science is a catalyst for solving global challenges, a key driver for competitiveness and a compelling force for closer integration and peace through scientific collaboration.” This is the vision of LEAPS, League of European ...
HZB scientist got the dissertation prize at the spring conference of the...
Dr. Nele Thielemann-Kühn was awarded the dissertation prize of the magnetism research group at the spring conference of the Deutsche Physikalische Gesellschaft (German physical society/DPG) in Berlin. The prize is awarded for outstanding research in the field ...
Twin Orbit operation successfully tested at BESSY II
The first "Twin Orbit User Test week” at BESSY II in February 2018 was a big success and can be considered as an important step towards real user operation. Physicists at Helmholtz-Zentrum Berlin have been able to store two separate electron beams in ...
Solar–to-hydrogen conversion: nanostructuring increases efficiency of...
Polymeric carbon nitrides exhibit a catalytic effect in sunlight that can be used for the production of hydrogen from solar energy. However, the efficiency of these metal-free catalysts is extremely low. A team at the Tianjin University in China, in ...
Dr. Raul Garcia Diez wins the Dissertationspreis Adlershof 2017
With his talk on the properties of nanoparticles and how they can be measured more accurately at BESSY II, Dr. Raul Garcia Diez convinced the jury and was awarded the Dissertationspreis Adlershof 2017. Humboldt-Universität zu Berlin, IGAFA e. V. and the WISTA ...
40-year controversy in solid-state physics resolved
An international team at BESSY II headed by Prof. Oliver Rader has shown that the puzzling properties of samarium hexaboride do not stem from the material being a topological insulator, as it had been proposed to be. Theoretical and initial experimental work ...
BER II and BESSY II User Meeting at HZB
More than 600 scientists registered this year for the 9th annual BER II and BESSY II User Meeting from Wednesday to Friday, 13-15 December 2017. The Friends of Helmholtz-Zentrum Berlin recognised outstanding work in the field of synchrotron radiation with an ...
Future IT: Antiferromagnetic dysprosium reveals magnetic switching with less...
HZB scientists have identified a mechanism with which it may be possible to develop a form of magnetic storage that is faster and more energy-efficient. They compared how different forms of magnetic ordering in the rare-earth metal named dysprosium react to a ...
“Distinguished Award 2017 for Novel Materials and their Synthesis” for Norbert...
At the IUPAC NMS-XIII conference in Nanjing, Professor Dr. Norbert Koch has been awarded the "Distinguished Award 2017 for Novel Materials and their Synthesis "of IUPAC (International Union of Pure and Applied Chemistry) and of the Conference Committee. Koch ...
Missing link between new topological phases of matter discovered
HZB-Physicists at BESSY II have investigated a class of materials that exhibit characteristics of topological insulators. During these studies they discovered a transition between two different topological phases, one of which is ferroelectric, meaning a ...
The use coordination on a EU trip: promoting European light sources
Synchrotrons are outstanding tools for studying materials, cells and even cultural assets. Yet, many researchers in Eastern Europe are unaware that they are entitled to use them. The EU project Calipsoplus supports potential users from these countries.
Novel soft X-ray spectrometer enables individual steps of photosynthetic water...
HZB scientists have developed a novel spectrometer at BESSY II that enables researchers to obtain detailed insights about catalytic processes in metalloenzymes. Their international collaboration was successful in delineating individual steps in the catalytic ...
The miracle material graphene: convex as a chesterfield
Graphene possesses extreme properties and can be utilised in many ways. Even the spins of graphene can be controlled through use of a trick. This had already been demonstrated by a HZB team some time ago: the physicists applied a layer of graphene onto a ...
Breakthrough at EMIL: First undulator radiation in the CAT experiment
When the EMIL laboratory (Energy-Materials In-Situ Laboratory Berlin) was ceremoniously inaugurated a year ago in the presence of Federal Minister for Research Johanna Wanka, it was a major milestone for energy materials research at HZB. Ever since, HZB has ...
Optical control of magnetic memory – new insights into fundamental mechanisms
A research team at Helmholtz-Zentrum Berlin (HZB) has shown for the first time how laser modulation of magnetic properties in materials is influenced by thermal effects and how the process occurs under moderate experimental parameters. At the same time, the ...
EU project CALIPSOplus has started for free access to European light sources
The EU is providing ten million euros in funding for the project CALIPSOplus, submitted by 19 European light sources. The project consortium, of which Helmholtz-Zentrum Berlin is a member, kicked off on May 2017. CALIPSOplus is aimed at promoting the ...
New at Campus Wannsee: CoreLab Quantum Materials
Helmholtz-Zentrum Berlin has expanded its series of CoreLabs for energy materials research. In addition to the five established CoreLabs, it has now set up a CoreLab for Quantum Materials. A research team from the HZB Institute for Quantum Phenomena in New ...
New lab for electrochemical interfaces at BESSY II
The Helmholtz-Zentrum Berlin (HZB) is establishing a joint lab together with the Max Planck Society (MPS) to study electrochemical phenomenon at solid/liquid interfaces. The Berlin Joint Lab for Electrochemical Interfaces, or BElChem for short, will employ ...
Three-dimensional graphene: experiment at BESSY II shows that optical...
An international research team has for the first time investigated the optical properties of three-dimensional nanoporous graphene at the IRIS infrared beamline of the BESSY II electron storage ring. The experiments show that the plasmonic excitations ...
New Helmholtz Young Investigator Group for electrochemical conversion of carbon...
Dr. Matthew T. Mayer is setting up a Helmholtz Young Investigator Group in the field of energy materials research at HZB. He investigates how carbon dioxide and water can be converted electrochemically into hydrocarbons such as methane and methanol by using ...
HZB and Freie Universität Berlin establish the joint research group “X-Ray...
In May this year, the joint research group "X-Ray Microscopy” was launched, combining the expertise of teams led by Prof. Dr. Gerd Schneider (Helmholtz-Zentrum Berlin) and Prof. Dr. Helge Ewers (Freie Universität Berlin). While Ewers’ group ...
The Young Investigators Workshop 2017 on Dynamic Pathways in Multidimensional...
24 scientists from various countries participated in the Young Investigators Workshop 2017 on Dynamic Pathways in Multidimensional Landscapes in Grainau am Eibsee in the Bavarian Alps. This workshop which was organized by Professor Alexander Föhlisch was ...
Green IT: New switching process in non-volatile spintronics devices
Physicists achieved a robust and reliable magnetization switching process by domain wall displacement without any applied fields. The effect is observed in tiny asymmetric permalloy rings and may pave the way to extremely efficient new memory devices. The ...
Proton transfer: Researcher find mecanism to protect biomolecules against light...
A team at the Helmholtz-Zentrum Berlin (HZB) together with researchers in Sweden and the USA has analysed a mecanism which protects biomolecules such as the DNA against damage by light. They observed how the energy of incoming photons can be absorbed by the ...
20 participants join the first Photon School at HZB
From 14 to 24 March, the first Photon School takes place at HZB. 20 students from 8 countries get an unique opportunity for a first-hand training covering a wide range of experimental and theoretical methods for probing the molecular structure, function, and ...
Highly sensitive method for detecting ion pairs in aqueous solution developed
Scientists of the Helmholtz-Zentrum Berlin, Freie Universität Berlin, Universität Heidelberg, and the University of Chemistry and Technology Prague have empirically detected a very specialised type of electron transfer in an aqueous salt solution, one which ...
Helmholtz-Zentrum Berlin is establishing a Helmholtz Young Investigator Group...
Dr. Matthew T. Mayer from the École Polytechnique Fédérale de Lausanne (EPFL), Switzerland, will be putting together a Helmholtz Young Investigator Group in the field of energy materials research at HZB. He will be researching into how carbon dioxide and ...
Research for Germany’s energy transition: EMIL@BESSY II approved for the...
The storage of excess solar and wind power is one of the greatest challenges in Germany’s energy transition. To address this, the German Federal Ministry for Education and Research (BMBF) has created the "Power-to-X” (P2X) project under its ...
Methods at BESSY II: Versatile cross-correlator for ultrafast X-ray experiments
Particularly in the soft X-ray range experimentalists are lacking a broadband method to correlate ultrashort X-ray and laser pulses in space and time. Only recently, a team from Helmholtz-Zentrum Berlin and the University of Potsdam was able to achieve this ...
EMIL, a 2000-square-metre laboratory complex, has opened for research into new...
After three years of construction, the Energy Materials In-Situ Laboratory (EMIL) is now open. The new laboratory complex for researching energy materials, annexed to BESSY II in Berlin-Adlershof, was ceremonially inaugurated with the involvement of the ...
Future Information Technologies: New combinations of materials for producing...
An international collaboration at BESSY II has discovered a new method to inscribe exotic magnetic patterns such as magnetic monopoles into thin ferromagnetic films. Such unconventional orientation of magnetic domains might open a new path for the design of ...
Advancing methodology at BESSY II: Automated evaluation speeds up the search...
The macromolecular crystallography (MX) beamlines at the BESSY II X-ray source are specially designed to highly automated structural analyses of protein crystals. With up to now more than 2000 solved structures of protein molecules, these beamlines are by far ...
VI-Conference "Dynamic Pathways in Multidimensional Landscapes 2016"
Near the museum island, in the heart of Berlin, the International Conference "Dynamic Pathways in Multidimensional Landscapes 2016" has taken place last week. More than 100 international experts met at the Magnus-Haus of the German Physical Society from 12 ...
Manual of characterisation techniques for thin-film solar cells published with...
In August 2016, the second, enlarged edition of the reference book "Advanced Characterization Techniques for Thin-Film Solar Cells" appeared from renowned publisher WILEY-VCH. Co-editor is HZB researcher Dr. Daniel Abou-Ras. A total of eleven authors from HZB ...
User research at BESSY II: How water moves glass
In the realm of plants, capillary forces are a widely observed impetus for actuation. They are the physical basis for the expansion of porous materials during uptake of fluid. Such materials include the cones of conifers with their readily observable movement ...
Two Freigeist Fellows interweave their research at HZB
Two Freigeist Fellows are conducting research at the HZB Institute for Methods of Material Development through support received from the Volkswagen Foundation. Theoretical chemist Dr. Annika Bande is modelling fast electron processes, while Dr. Tristan Petit ...
New effect on laser induced switching for higher data densities
An international collaboration has now demonstrated a completely new approach to increase data density in storage media. They used ultra-short laser pulses to trigger a phase transition in the ferromagnetic material BaFeO3 (BFO). Experiments at the Femtospex ...
User Community Science: Soft decoupling of organic molecules on metal
An international team has discovered an elegant way to decouple organic nanosheets grown on metal surfaces. After iodine intercalation, measurements at the synchrotron source BESSY II of Helmholtz-Zentrum Berlin (HZB) showed that a network of organic ...
Spintronics: Resetting the future of Heat Assisted Magnetic Recording
A HZB team has examined thin films of Dysprosium-Cobalt sputtered onto a nanostructured membrane at BESSY II. They showed that new patterns of magnetization could be written in a quick and easy manner after warming the sample to only 80 °Celsius, which is a ...
Ferrous chemistry in aqueous solution unravelled
An HZB team has combined two different analytical methods at the BESSY II synchrotron source in order to extract more information about the chemistry of transition-metal compounds in solution. These kinds of compounds can act as catalysts to promote desirable ...
Spintronics for future information technologies: spin currents in topological...
An international team headed by HZB researcher Jaime Sánchez-Barriga has shown how spin-polarised currents can be initiated in a controlled manner within samples of topological insulator material. In addition, they were able to manipulate the ...
Helmholtz Virtual Institute International Conference "Dynamic Pathways in...
We invite you to join the International Conference "Dynamic Pathways in Multidimensional Landscapes" which will take place in the heart of Berlin at the Magnus-Haus of the German Physical Society from September, 12th -16th, 2016. Now, the Online registration ...
Energy Materials: Dr. Catherine Dubourdieu sets up the institute “Functional...
The Helmholtz-Zentrum Berlin (HZB) is boosting its energy materials research and setting up a new institute. Through the Helmholtz Recruitment Initiative, the HZB has gained renowned researcher Catherine Dubourdieu as Institute Director. In the newly ...
Measuring chemistry: local fingerprint of hydrogen bonding captured in...
A team from Helmholtz-Zentrum Berlin has been able for the first time to measure how new bonds influence molecules: they have reconstructed the "energy landscape” of acetone molecules using measurement data from the Swiss Light Source (SLS) of the Paul ...
Topological insulators: Magnetism is not causing loss of conductivity
If topological insulators are doped with impurities that possess magnetic properties, they lose their conductivity. Yet contrary to what has been assumed thus far, it is not the magnetism that leads to this. This has been shown by recent experiments with ...
Metal Oxide Sandwiches: New option to manipulate properties of interfaces
A Franco-German cooperation has investigated a sandwich system of transition metal oxides at BESSY II. The scientists discovered a new option to control properties of the interface between the two layers, for instance the amount of charge transferred from one ...
A Fast Way of Electron Orbit Simulation in Complex Magnetic Fields
The design of advanced synchrotron radiation sources requires precise algorithms for the simulation of electron trajectories in complex magnetic fields. However, multi-parameter studies can be very time consuming. Now, a team of the HZB has developed a ...
MacQueen is researching into optical energy converters for generating fuels:...
Dr. Rowan W. MacQueen will come in spring 2016 to the Helmholtz-Zentrum Berlin (HZB) and will receive funding for his research project through the Helmholtz Postdoc Programme. He will be studying the optoelectronic properties at the boundaries of thin organic ...
Common platform for macromolecular crystallography at European synchrotrons
Researchers use high-intensity X-ray light from synchrotron radiation sources to decipher the structures of biological molecules and thus the blueprints of life. A cooperation agreement has been effective since 2012 to establish common software standards at ...
Filming microscopic and macroscopic changes within materials
The EDDI beamline at BESSY II is now offering even more options. It has recently become possible to also obtain high-resolution three-dimensional images of microscopic structure with it, up to four such tomographies per second are possible. X-ray diffraction ...
rbb-Inforadio: Andreas Jankowiak im Gespräch über bERLinPro
Die Baustelle für bERLinPro fällt auf. Sie ist auch dem Wissenschaftsredakteur des rbb-Inforadio, Thomas Prinzler, nicht entgangen. Und so kam es zu einem kurzweiligen Gespräch, in dem Andreas Jankowiak die Herausforderungen des Projekts erläutert. Hohe ...
BESSY II electron highway gets second lane
The particle accelerator team at Helmholtz-Zentrum Berlin (HZB) has demonstrated that BESSY II, the 3rd generation synchrotron radiation source in Berlin, can be operated with not just one, but two simultaneous electron paths. By precisely tuning the magnetic ...
Science-Video Wettbewerb: Der vom HZB eingereichte Beitrag aus dem Happy...
Jetzt gilt‘s: bitte teilen, kommentieren und voten. Der von Wissenschaft im Dialog durchgeführte Video-Wettbewerb "Fast Forward Science 2015" geht in die heiße Phase. 109 Videos sind bis zum Stichtag 31. Juli eingereicht worden, von denen eine Jury nun ...
Catalysis research strengthened: Helmholtz-Zentrum Berlin participates in newly...
The Einstein Foundation will fund the new Einstein Center for Catalysis (EC2) beginning in 2016 in which Technical University Berlin (TU Berlin) and selected non-university institutions in Berlin will be participating. Prof. Emad Aziz, head of the HZB ...
How to Flow Ultrathin Water Layers - A Liquid Flatjet for X-Ray Spectroscopy
A collaboration between scientists from the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI), the Helmholtz-Zentrum Berlin (HZB) and the Max Planck Institute for Dynamics and Self-Organization (MPIDS) have now demonstrated the ...
Gemeinsames Treffen der Strukturbiologen in Berlin: der 6. Joint-MX-Day am 23....
Die Hauptstadt hat sich in den letzten Jahren zu einem Hotspot der Strukturbiologie in Deutschland entwickelt. Entscheidend dazu beigetragen hat das hohe Maß an Kooperation zwischen außeruniversitären Forschungseinrichtungen und Universitäten. Aber auch ...
Rohbauarbeiten für Beschleunigerhalle am HZB beginnen: Spatenstich für eine...
Unmittelbar vor dem Beginn der Rohbauarbeiten wurde am 10. September 2015 der Spatenstich für die neue Beschleunigerhalle von bERLinPro gefeiert, in der eine kompakte Testanlage für einen Linearbeschleuniger mit Energierückgewinnung aufgebaut wird. Zirka 200 ...
Milch, Wirkstoff-Taxis und andere kolloide Materialsysteme analysieren: SAS...
Vom 13. - 18. September treffen sich über 400 Expertinnen und Experten zur 16. Internationalen Konferenz zur Kleinwinkelstreuung (16. International Conference on Small Angle Scattering, SAS 2015) in Berlin. Mit Kleinwinkelstreuung lassen sich biologische und ...
BESSY II launches New Filling Pattern in User Mode
Since July 2015 BESSY II has been providing a new bunch filling pattern in Top-Up mode. It will open new opportunities especially for research teams dealing with time-resolved x-ray experiments. It is of significant importance for us and the community ...
Freigeist Fellowship for Tristan Petit
For his project on nanodiamond materials and nanocarbon, Dr. Tristan Petit has been awarded a Freigeist Fellowship from the VolkswagenStiftung. The grant covers a five-year period and will enable him to establish his own research team. The VolkswagenStiftung ...
Gerd Schneider receives a professorship for "X-ray microscopy" at...
On 29 April 2015, Gerd Schneider (HZB) accepted the call to a W2-S "X-ray microscopy” professorship at the Department of Physics of Humboldt-Universität zu Berlin. The professorship is associated with heading the workgroup "X-ray microscopy” at ...
New technique enables magnetic patterns to be mapped in 3D
An international collaboration has succeeded in using synchrotron light to detect and record the complex 3D magnetisation in wound magnetic layers. This technique could be important in the development of devices that are highly sensitive to magnetic fields, ...
From Excited Atoms to Functionality – ERC Advanced Grant Awarded to Alexander...
Under the EU Horizon 2020 Programme for Research and Innovation, Alexander Föhlisch has been awarded an ERC Advanced Grant. The physicists is holding a joint appointment at the Institute for Physics and Astronomy of the University of Potsdam and at the ...
Realistic computer model of battery electrodes
A research team has developed a new approach for more realistic computer models of battery electrodes. They combined images from synchrotron tomography that capture three-dimensional structure at micron resolution with those from an electron microscope that ...
Poster award for MatSEC PhD student at the MRS Spring Meeting
The poster contribution of Kai Neldner (HZB-Department Crystallography) was awarded a poster price of the Symposium "Thin-Film Compound Semiconductors" at the MRS Spring Meeting in San Francisco. Kai Neldner, a PhD student in the HZB Graduate School ...
New options for spintronic devices: Switching between 1 and 0 with low voltage
Scientists from Paris and Helmholtz-Zentrum Berlin have been able to switch ferromagnetic domains on and off with low voltage in a structure made of two different ferroic materials. The switching works slightly above room temperature. Their results, which are ...
Wheel with triple sound velocity for pulse selection at BESSY II
In order to pick out only one pulse per turn out of the 400 possible x-ray flashes at BESSY II, a joint team of physicists and engineers from Forschungszentrum Jülich, MPI of Microstructure Physics and HZB have developed an extremely fast rotating "MHz-pulse ...
EU funding strengthens solar cell research at HZB
Marcus Bär and his team are participating in two international projects being funded under the EU Horizon 2020 research programme. Both research projects are concerned with development and optimisation of high-efficiency thin-film solar cells based on ...
BESSY II changes over to solid state RF amplifiers
BESSY II storage ring has four cavity resonators that are excited with high-power oscillating electromagnetic fields to compensate for the energy lost by the electron beam. Four Klystrons, as they are called (large high-power linear RF vacuum tubes), have ...
Stretch and relax! – Losing one electron switches magnetism on in dichromium
An international team of scientists from Berlin, Freiburg and Fukuoka has provided the first direct experimental insight into the secret quantum life of dichromium. Whereas in its normal state the 12 valence electrons form a strong multiple bond between the ...
Details of a crucial reaction: Physicists uncover oxidation process of carbon...
An international team has observed the elusive intermediates that form when carbon monoxide is oxidized on a hot ruthenium metal surface. They used ultrafast X-ray and optical laser pulses at the SLAC National Accelerator Laboratory, Menlo Park, California. ...
“VEKMAG” at BESSY II creates 3D magnetic fields in samples
Together with HZB, teams from the Universität Regensburg, from the Freie Universität Berlin and from the Ruhr Universität Bochum have jointly set up a unique measurement station at BESSY II: a vector electromagnet consisting of three mutually perpendicular ...
Batman lights the way to compact data storage
Researchers at the Paul Scherrer Institute (PSI) have succeeded in switching tiny, magnetic structures using laser light and tracking the change over time. In the process, a nanometre-sized area bizarrely reminiscent of the Batman logo appeared. The research ...
New in situ cell for investigating solid- and liquid-state samples and their...
A team headed by Dr. Kathrin Aziz-Lange has developed a new in-situ cell for X-ray spectroscopy of fluid samples and their interfaces to solid bodies. What is special is the cell contains electrodes that can expose the sample to voltage during or between ...
German Society for Materials Science awards publication with HZB scientist as co-author
At its annual conference on September 22, 2014, the German Society for Materials Science (DGM), presented the Werner Köster Award for best publication. The work, whose authors include HZB scientist Dr. Michael Tovar and which has been published in the ...
Deutsche Tagung für Forschung mit Synchrotronstrahlung, Neutronen und...
Das HZB ist mit eigenem Stand, Vortrag und Postern präsent auf der Deutschen Tagung für Forschung mit Synchrotronstrahlung, Neutronen und Ionenstrahlen an Großgeräten (SNI). Die dreitägige Veranstaltung findet vom 21. bis 23.09. im ehemaligen Plenarsaal der ...
Self-assembly of gold nanoparticles into small clusters
Researchers at HZB in co-operation with Humboldt-Universität zu Berlin (HU, Berlin) have made an astonishing observation: they were investigating the formation of gold nanoparticles in a solvent and observed that the nanoparticles had not distributed ...
BMBF-Staatsekretär Stefan Müller bei BESSY II zu Gast
Seit Dezember 2013 ist Stefan Müller Parlamentarischer Staatssekretär bei der Bundesministerin für Bildung und Forschung Prof. Dr. Johanna Wanka. Nun informierte sich Stefan Müller über die Forschung am BESSY II. Der Besuch fand am Mittwoch, den 16. Juli 2014 ...
1200 accelerator physicists from around the world meet in Dresden
The world’s largest particle accelerator conference is being held in Germany for the first time, with around 1200 scientists expected to visit the Saxon capital Dresden from 15 to 20 June. The 5th international conference IPAC is the place for experts ...
X-ray pulses on demand from Electron Storage Rings
HZB physicists recently devised a new method to pick single x-ray pulses out of the pulse trains usually emitted from synchrotron radiation facilities. The technique is very useful to support studies of electronic properties of quantum materials and ...
Energy efficient LEDs and lasers with Chalcogenide monolayers
As reported by nanotechweb.org, monolayers of certain chalcogenides might be used to make energy-efficient nano-optoelectronics devices, such as LEDs, lasers, solar cells, and high-electron-mobility transistors. Scientists of the University of California at ...
New tool for Joint Lab to investigate the chemistry of nature
The Aziz’ team at the Joint Laboratory between Freie Universität Berlin and HZB has built a laser-based tabletop setup which generates ultrashort XUV light pulses and achieves their monochromatization by implementing special reflection zone plates, ...
How to use light to manipulate the spin in topological insulators
Researchers at HZB investigated the topological insulator bismuth selenide (Bi2Se3) by spin-resolved photoelectron spectroscopy at BESSY II. They found an astonishing difference depending on whether it is illuminated by circularly polarized light in the ...
New holographic process uses image-stabilised X-ray camera
A team headed by Stefan Eisebitt has developed a new X-ray holography method that will enable snap-shots of dynamic processes at highest spatial resolution. The efficiency of the new method is based on a X-ray focussing optics being firmly fixed to the object ...
Die Vermessung von Molekülen: Physiker der Uni Graz spüren Elektronenzustände...
Seit der Formulierung der Quantenphysik vor gut hundert Jahren träumen Wissenschaftlerinnen und Wissenschaftler davon, die quantenmechanischen Orbitale von Elektronen in Atomen, Molekülen und Festkörpern zu messen. Denn diese Orbitale bestimmen die chemischen ...
HZB part of new metal oxide/water systems CRC
A team of HZB researchers is part of the new collaborative research center, "Molecular insights into metal oxide/water systems" funded by the German Research Association. As part of this CRC, Dr. Bernd Winter of Prof. Dr. Emad Aziz's junior research group ...
Anbau an BESSY II im Rekordtempo: EMIL hat jetzt ein Dach über dem Kopf
Das Forschungsgebäude für das neue Labor EMIL an BESSY II nimmt Form an: Am Mittwoch, 4. Dezember 2013, ab 13 Uhr feiert das "Energy Materials In-Situ Laboratory Berlin" Richtfest. Die Zeremonie findet auf dem Wilhelm Conrad Röntgen Campus des ...
Resumption of full scientific operation at BESSY II delayed
While the lengthy summer shutdown with its comprehensive updating and maintenance work has been completed as planned, there have been some unforeseeable disruptions that will delay the resumption of regular Top-Up operations at present. The scientific ...
Technology Transfer Prize for development of an optimised cutting tool
Dr. Manuela Klaus and Prof. Dr. Christoph Genzel have won the HZB Technology Transfer Prize awarded 17 October 2013. In collaboration with the Walter Company, they developed a new method for analysing and establishing the relationship between the structure ...
Wiederaufnahme des Messbetriebs nach Sommershutdown:
Seit Anfang der Woche läuft der Messbetrieb am Berliner Elektronenspeicherring BESSY II wieder. Damit ist der planmäßige neunwöchige Sommer-Shutdown 2013 beendet. Er stand in diesem Jahr unter besonderer Aufmerksamkeit, denn an BESSY II wird das große ...
Göttingen scientists use BESSY II to decode basic mechanism underlying...
Enzymes are life’s molecular catalysts and figure prominently in cellular metabolism. It has been speculated that in the course of a biochemical reaction enzymes physically bend their substrates to split them. Now for the first time ever, scientists at ...
Better insight into molecular interactions
How exactly atoms and molecules in biochemical solutions or at solid-liquid interfaces do interact, is a question of great importance. Answers will provide insights at processes in catalysts, smart functional materials and even physiological processes in the ...
Ideal nanocrystal produced from bulk plastics
Polyethylene is an inexpensive commodity plastic found in many household objects. Now, a consortium of researchers from Constance, Bayreuth, and Berlin has successfully used this plastic to synthesize the ideal polymer nanocrystal. The prerequisite was a new ...
1000th protein structure decoded at BESSY II
In July of this year, the 1000th protein structure based on measurements obtained at BESSY II was published. The molecule in question belongs to a class of proteins called sirtuins, which are involved in aging, stress, and metabolic processes within the human ...
Die Bauarbeiten beginnen: BESSY II erhält Anbau für neuen Laborkomplex
Mit einem feierlichen Spatenstich beginnen am Montag, dem 5. August 2013 um 16:00 die Bauarbeiten für das neue Forschungslabor EMIL an BESSY II: Das "Energy Materials In-Situ Laboratory Berlin", kurz EMIL, wird als hochmodernes Präparations- und Analyselabor ...
Picosecond accurate slow-motion confirms oxide materials exhibit considerably...
As part of an international team of researchers, scientists at the Helmholtz Center Berlin (HZB) have observed the switching mechanism from a non-conducting to a conducting state in iron oxide (specifically, magnetite) with previously unrealized precision. ...
First Observation of Undulator Photon Beams Carrying Orbital Angular Momentum
For the first time researchers of HZB observed 99eV photons carrying Orbital Angular Momentum (OAM). The photons were detected in the 2nd harmonic off-axis radiation of a helical undulator. The measurements confirm a theoretical prediction from five years ...
Grating manufacture at Helmholtz-Zentrum Berlin scores breakthrough - Sawtooth...
The Technology Center for Optical Precision Gratings at the Helmholtz-Zentrum Berlin (HZB) has scored a breakthrough in the manufacture of these optical building elements. Gratings are used in photon sources to diffract light and filter out those wavelengths ...
Discovery of how a key enzyme of the spliceosome exerts its controlling function
To sustain life, processes in biological cells have to be strictly controlled both in time and in space. By using the MX-Beamline of synchrotron radiation source BESSY II research workers at the Max Planck Institute for Biophysical Chemistry in Göttingen and ...
Posterpreis auf Internationaler Teilchenbeschleunigerkonferenz an Julia Vogt
Vom 12. bis 17. Mai tagte in Shanghai, China, die 4. Internationale Konferenz für Teilchenbeschleuniger (International Particle Accelerator Conference, IPAC13). Rund 1.200 Teilnehmerinnen und Teilnehmern aus aller Welt hatten sich versammelt, um sich über ...
RUB physicists let magnetic dipoles interact on the nanoscale for the first time
"Of great technical interest for future hard disk drives” Physicists at the Ruhr-Universität Bochum (RUB) have found out how tiny islands of magnetic material align themselves when sorted on a regular lattice - by measurements at BESSY II. Contrary to ...
Ultrafast Spin Manipulation at THz frequencies
The demands for ever increasing speed of information storage and data processing have triggered an intense search for finding the ultimately fast ways to manipulate spins in a magnetic medium. In this context, the use of femtosecond light pulses – the ...
Real time observation of chemical reaction at catalyst
Scientists at the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory used LCLS, together with computerized simulations, to reveal surprising details of a short-lived early state in a chemical reaction occurring at the surface of a catalyst ...
Kathrin Lange erhält Wilhelm-Ostwald-Nachwuchspreis 2012
Dr. Kathrin Maria Lange erhält für ihre am HZB angefertigte Dissertation den Wilhelm-Ostwald-Nachwuchspreis 2012. Der mit 2500,- Euro dotierte Preis wird von der Wilhelm-Ostwald-Gesellschaft zu Großbothen e.V., der Deutschen Bunsen-Gesellschaft für ...
Organic Electronics - How to make contact between carbon compounds and metals
Organic electronics has already hit the market in smart-phone displays and holds great promise for future applications like flexible electroluminescent foils (a potential replacement for conventional light bulbs) or solar cells that convert sunlight to ...
Graphene on Nickel: Electrons behave like light
Dr. Andrei Varykhalov and his colleagues in the group of Prof. Dr. Oliver Rader investigated at BESSY II the electronic properties of nickel coated with graphene and achieved an astonishing result. They could show that the conduction electrons of the graphene ...
Forscher zeigen mit Berechnungen, dass kompakte Laser-Plasma-Beschleuniger möglich sind
Ultrakurze Pulse aus kohärentem Röntgenlicht sind ein fantastisches Mittel, um Einsichten in atomare oder molekulare Reaktionen zu gewinnen. In Freien-Elektronen-Lasern können solche Pulse im Femtosekundenbereich (10 -15 sek) erzeugt werden. Doch bislang sind ...
HZB an Helmholtz-Plattform für Detektortechnologien und Detektorsysteme beteiligt
Die Helmholtz-Gemeinschaft initiiert eine Plattform, um Detektortechnologien und Detektorsysteme weiter zu entwickeln. Ziel der Plattform – die als Portfoliothema gefördert wird – ist es, Technologien zum Aufbau neuartiger Detektoren für ...
Tiny, Tailored Magnets - CeNIDE Researchers Publish in “Nature Communications”
Nanomagnets are used in many places nowadays, from medicine to data storage. Sometimes they have to be strong and and sometimes they have to be weak. Researchers from the Center for Nanointegration (CeNIDE) at University of Duisburg-Essen (UDE) have found out ...
Shedding Light on Luminescence - Scientists at HZB reveal the structure of a...
Fluorescent proteins are important investigative tools in the biosciences: Coupled to other proteins, they help us to study the processes of life inside cells and organisms at the molecular level. Fluorescent proteins are made to light up at specific target ...
The large-scale project EMIL (Energy Materials In-situ Laboratory Berlin) will...
Helmholtz Zentrum Berlin and the Max Planck Society are going to build a new, dedicated X-ray beamline together at the synchrotron source BESSY II, which will be used for analysing materials for renewable energy generation. The new large-scale project has ...
Ein Sensor für Wasserstoffbrückenbindungen
Wissenschafter des Helmholtz-Zentrum Berlin (HZB) haben einen Sensor für die Wasserstoffbrückenbindungen in flüssigem Wasser gefunden. In Röntgenspektren fanden sie einen Peak, der empfindlich auf das Brechen von Wasserstoffbrücken reagiert. Sie publizieren ...
Erster Nachweis für Viren in der Erdgeschichte: Paget-Krankheit bei...
Den Paläontologen Florian Witzmann und Oliver Hampe vom Museum für Naturkunde Berlin gelang in Kooperation mit Wissenschaftlern der Charité und des Helmholtz-Zentrums Berlin für Materialien und Energie eine aufsehenerregende Entdeckung: An einem 150 Millionen ...
Der Traum von der Zusammenarbeit wird wahr - Berliner Wissenschaftler mit ERC...
Der Physiker Prof. Dr. Emad Flear Aziz, Wissenschaftler am Helmholtz-Zentrum Berlin (HZB) und an der Freien Universität Berlin, wird mit einem "ERC Starting Grant" des Europäischen Forschungsrates ausgezeichnet. Dieser umfasst eine Förderung von 1,5 Millionen ...
Erfolgsgeschichte mit Fortsetzung - 10 Jahre Deutsch-Russisches Labor
Eine Erfolgsgeschichte feiert Geburtstag: Das Russisch-Deutsche Labor an der Speicherringanlage BESSY II des Helmholtz-Zentrums Berlin in Adlershof wird zehn Jahre alt. Die Einrichtung, in der Wissenschaftler zum fundamentalen Verständnis der Struktur von ...
Forschern gelingt es, Partikel beim Sintern dreidimensional sichtbar zu machen
Sintern ist ein Verfahren, um aus metallischen oder keramischen Pulvern Werkstoffe oder komplexe Bauteile herzustellen. Bei Temperaturen unterhalb des Schmelzpunktes entsteht aus einem Ausgangspulver ein Festkörper höherer Dichte. Mithilfe der hochauflösenden ...
Kampf gegen Antibiotika-Resistenzen - Wissenschaftler enttarnen Resistenzprotein
Wissenschaftler des Helmholtz-Zentrum Berlin haben mit der Synchrotronstrahlungsquelle BESSY II an der Strukturaufklärung eines Proteins mitgewirkt, das für Antibiotikaresistenzen verantwortlich ist: Mit ihrer Unterstützung ist es Forschern der Universität ...
Wichtiger Schritt Richtung BERLinPro: Erster Elektronenstrahl aus SRF...
Am 21. April 2011 hat das HZB mit einer supraleitenden Elektronenquelle (SRF Gun) die ersten Photoelektronen erzeugt und beschleunigt. Dies ist ein Meilenstein für das Projekt BERLinPro, und es ist zugleich weltweit das erste Mal, dass mit einem ...
Nutzerexperiment bei BESSY-II: Ein schneller Schalter für Magnetnadeln
Wissenschaftler aus aller Welt kommen ans HZB, um die beiden Großgeräte – die Synchrotronstrahlungsquelle in Adlershof und den Forschungsreaktor in Wannsee – für ihre Untersuchungen zu nutzen. Doch bevor es mit den Messungen losgehen kann, müssen ...
Von 1 auf 500… - 500ste Protein-Struktur an BESSY II entschlüsselt
Haare, Haut, Blutkreislauf und Nervensystem – alles wird von winzigen biologischen Bausteinen gesteuert. Wer nach diesen kleinsten Bausteinen des Lebens forscht, landet automatisch bei ihnen: den Proteinen. Um diese Grundbausteine des Lebens und die ...
LiXEdrom: Innovative measuring chamber for X-ray study of liquid jets
Until now, the only way to study liquids by soft X-ray emission spectroscopy (XES) has been through a membrane window. Now, researchers of Helmholtz-Zentrum Berlin have carried out an XES study of a free micro-liquid jet on the synchrotron.
Wie Kreisel auf atomarer Ebene miteinander wechselwirken
Die Wechselwirkungen zwischen Elektronen und dem Atomgerüst in einem Festkörper sind die Grundlage von Materialeigenschaften, die eine zunehmend wichtige technologische Rolle spielen. Dazu gehört zum Beispiel das schnelle Schalten magnetischer Medien, wie es ...
MAXYMUS - Neue Einsichten mit Röntgenblitzen
Das derzeit modernste Rasterröntgenmikroskop wird vom Stuttgarter Max-Planck-Institut für Metallforschung am Helmholtz-Zentrum Berlin eingeweiht; Experten treffen sich zum Workshop über Röntgenmikroskopie Stuttgart/Berlin: Am 10. und 11. November weiht das ...
Zweifacher Erfolg für das HZB bei der SAS-Konferenz
SAS-Konferenz im Jahr 2015 in Berlin! Die internationale Konferenz "Small Angle Scattering" (SAS) wird im Jahr 2015 in Berlin stattfinden. Das entschied sich während der SAS2009, die vom 13. bis 18. September in Oxford stattfand. Bei der SAS-Konferenzreihe ...
New Chapter in the Research with Synchrotron Radiation
Junior scientist from Berlin extents the range of application of X-ray methods and receives prestigious award.Dr. Emad Aziz Bekhit from the Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) is this year's recipient of the renowned Dale Sayers ...
BEST - Eigene Strahllinie für studentische Nachwuchsforscher bei BESSY II...
Die BEST-Experimentierplätze wurden ins Leben gerufen, um Studierende und junge Wissenschaftler in das Experimentieren mit Synchrotronstrahlung einzuführen und weiter zu qualifizieren; aber auch Master- und Doktorarbeiten sind vorgesehen. Prof. Dr. Recardo ...
Emad Flear Aziz Bekhit erhält den Ernst-Eckhard-Koch-Preis
Für seine Doktorarbeit an der Freien Universität Berlin hat Emad Flear Aziz Bekhit heute den Ernst-Eckhard-Koch-Preis erhalten. Emad Aziz hat eine Experimentierkammer gebaut, mit denen er wässrige Proben im Ultrahochvakuum spektroskopisch untersuchen kann. ...
Spot an – vor 10 Jahren ging die Synchrotronstrahlungsquelle BESSY II in Betrieb
Am 4. September 1998 nahmen der damalige Forschungsminister Jürgen Rüttgers, Berlins Regierender Bürgermeister Eberhard Diepgen und die beiden Geschäftsführer der BESSY GmbH, Eberhard Jaeschke und Wolfgang Gudat, die zu dem Zeitpunkt modernste ...
Towards imaging ultrafast evolution in a single shot
Research carried out by BESSY scientists in collaboration with colleagues from SLAC and SOLEIL has been featured as Editors’ Choice in the Nov. 23 issue of the Science Magazine. In the Optics Letters article by W. F. Schlotter et al., multiplexed x-ray ...
Qumran-Rollen vom Toten Meer an BESSY II untersucht
Antike Schriftstücke vor dem Verfall zu bewahren oder sie zu restaurieren ist eine Kunst für sich. Um sie auszuüben, ist es von enormer Bedeutung herauszufinden, wie beispielsweise Pergament durch bestimmte Tinten über die Jahrhunderte zerstört wird; und wie ...
Untersuchungen selbstorganisierter Nanostrukturen bei BESSY mit Carl-Ramsauer-Preis ausgezeichnet
Der Physiker Dr. Andrei Varykhalov hat Quantenphänomene in seiner Dissertation studiert, seine Untersuchungen führte er am Berliner Elektronenspeicherring BESSY durch. Für seine Arbeit mit dem Titel Quanteneffekte in der elektronischen Struktur neuer ...