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Part of the IRIS research labs will be equipped for research on catalysts. Photo
NEWS
HZB and Humboldt University agree to set up a catalysis laboratory The IRIS research building offers optimal conditions for the research and development of complex material systems.
Nine samples with mixtures from CsPbBr2I (ink 1, left) to pure CsPbI3 (ink 2 right).
SCIENCE HIGHLIGHT
Solar cells: Mapping the landscape of Caesium based inorganic halide perovskites The study provides a quick and easy method to assess new compositions of perovskite materials in order to identify candidates for applications in thin film solar cells and optoelectronic devices.
Structural model of highly porous a-Si:H, which was deposited very quickly, calculated based on measurement data. Densely ordered domains (DOD) are drawn in blue and cavities in red. The grey layer represents the disordered a-Si:H matrix. The round sections show the nanostructures enlarged to atomic resolution (below, Si atoms: grey, Si atoms on the surfaces of the voids: red; H: white)
SCIENCE HIGHLIGHT
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.
(a,b) Cryo-electron microscopy of the 2D-grating and the diffraction pattern of a section. (c-e) Magnification shows the 2D Pascal triangular pattern, with the inserted protein molecules.
SCIENCE HIGHLIGHT
Nanopatterns of proteins detected by cryo-electron microscopy A Team at HZB used cryo electron microscopy to detect regular, two-dimensional structures in the form of Pascal triangles, which a Chinese research group assembled from proteins in the laboratory for the first time.
Dr. Michael Tovar working at FALCON at the neutron Source BER II.
SCIENCE HIGHLIGHT
Perovskite materials: Neutrons show twinning in halide perovskites An investigation with the Laue camera at the neutron source BER II could now clarify that twinning occurs during crystallisation even at room temperature.
View into the experimental hall of the electron accelerator BESSY II at Helmholtz-Zentrum Berlin. Researchers carry out experiments at approximately 50 beamlines. The aim of the cooperation between the University of Kassel and the HZB is to use artificial intelligence to evaluate these data more efficiently.
NEWS
University of Kassel and HZB establish Joint Lab for the use of artificial... The University of Kassel and Helmholtz-Zentrum Berlin are setting up a joint laboratory for the use of artificial intelligence, where they will improve the analysis of data from experiments performed at BESSY II.
The participants after signing the cooperation agreement between IKZ and HZB in corona-conform distance: (from left to right) Dr. Andreas Popp (IKZ), Dr. Manuela Urban (FVB), Dr. Peter Gaal (IKZ), Prof. Dr. Catherine Dubourdieu (HZB), Prof. Dr. Thomas Schröder (IKZ), Prof. Dr. Bernd Rech (HZB), Thomas Frederking (HZB).
NEWS
HZB & IKZ bundle their competencies In crystalline energy and quantum materials On September 11, 2020, the Helmholtz-Zentrum Berlin (HZB) and the Leibniz-Institut für Kristallzüchtung (IKZ) signed a cooperation agreement to advance joint research on energy and quantum materials.
Dr. Tristat Petit receives the ERC Starting Grant from the European Research Council for his research on a new class of materials for the storage of electrical energy, the so-called MXenes.
NEWS
New Materials for Energy Storage: ERC Starting Grant for Tristan Petit ERC Starting Grant for Tristan Petit. At BESSY II, the materials researcher is using this grant to investigate a new class of materials for storing electrical energy, the so-called MXenes.
Structure of TUB75: the entire MOF architecture (top) and its conductive inorganic unit (bottom)
SCIENCE HIGHLIGHT
Molecular architecture: New class of materials for tomorrow's energy storage TUB75 is the name of a newly created material from the class of metal-organic frameworks, or MOFs. It could open up new opportunities for energy storage.
Integrated PV-EC device during performance tests in the outdoor test bed for realistic operating condition.
NEWS
Best electrolyser/photovoltaics combinations demonstrated in test fields One of the most promising ways to increase the availability of solar energy is to convert excess production into hydrogen. The PECSYS project has investigated the best possible material and technology combinations to facilitate such an operation.
The structure of crystalline silicon electrodes changes into a chessboard-like fracture pattern as a result of loading and unloading. At the HZB it has now been observed that these defects do not become larger during charging and discharging but remain in their pattern.
SCIENCE HIGHLIGHT
Hope for better batteries – researchers follow the charging and discharging of... The use of silicon in batteries promises to increase their capacity. At the HZB, charging and discharging was observed live for the first time and insights were gained into how the material can be used even more advantageously.
This is how the experiment went: Two laser pulses hit the thin film of iron-platinum nanoparticles at short intervals: The first laser pulse destroys the spin order, while the second laser pulse excites the now unmagnetised sample. An X-ray pulse then determines how the lattice expands or contracts.
SCIENCE HIGHLIGHT
Robust high-performance data storage through magnetic anisotropy An international team led by Prof. Dr. Matias Bargheer has now observed experimentally for the first time how a special spin-lattice interaction in these iron-platinum thin films cancels out the thermal expansion of the crystal lattice.
The LumY Pro is an easy-to-use, non-invasive and versatile system with unparalleled compactness to swiftly quantify absolute electro- and photoluminescence photon fluxes of thin film absorbers, layer stacks or complete devices under various operating conditions.
NEWS
Optimize opto-electronic devices with new compact measuring system In order to develop efficient opto-electronic devices such as solar cells or LEDs, it is crucial to improve the quality of the semiconductors. To achieve this, it is necessary to determine the luminescence yield of the semiconductor material. For this ...
Graphic representation of the printing process for the perovskite LED.
SCIENCE HIGHLIGHT
Printed perovskite LEDs – an innovative technique towards a new standard... LEDs from the inkjet printer - For the first time, it has been possible to produce light emitting diodes from hybrid perovskite semiconductor material using inkjet printing.
The publication made it onto the cover of the current issue of SCIENCE.
SCIENCE HIGHLIGHT
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.
Perovskite oxides are characterized by the molecular formula ABO3, where the elements A (green) and B (blue) are located on specific lattice sites and are surrounded by oxygen (red).
SCIENCE HIGHLIGHT
Catalysts: Efficient hydrogen production via structure In order to produce regenerative hydrogen efficiently by electrolysis of water, researchers also investigate perovskite oxides. Dr. Marcel Risch has been invited to publish an overview article.
Two of the four magnetic interactions form a new three-dimensional network of corner-sharing triangles, known as the hyper-hyperkagome lattice, leading to the quantum spin liquid behavior in PbCuTe2O6.
SCIENCE HIGHLIGHT
Future information technologies: 3D Quantum Spin Liquid revealed An international team led by HZB scientists has investigated crystals of PbCuTe2O6 with neutron experiments at ISIS, NIST and ILL. They found spin liquid behaviour in 3D, due to a so called hyper hyperkagome lattice.
The material consists of Nafion with embedded nanoparticles.
SCIENCE HIGHLIGHT
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.
In HoAgGe, holmium spins occupy the corners of triangles that are arranged in a Kagome pattern. The alignment of adjacent spins (left, red arrows) must obey the ice rule: Either two spins protrude into a triangle and one protrude out, or vice versa. As a result the individual triangles behave as if they were magnetic monopoles (right).
SCIENCE HIGHLIGHT
Neutron research: Magnetic monopoles detected in Kagome spin ice systems At low temperatures, certain crystals can contain so-called quasi-particles that behave like magnetic monopoles. Now an international cooperation has proven that such monopoles also occur in a Kagome spin ice system.
MXenes are 2D materials forming multi-layered particles (left) from which pseudocapacitors are made. Shining X-ray light on MXenes revealed changes of their chemical structure upon intercalation of urea molecules (right) compared to pristine MXenes (center).
SCIENCE HIGHLIGHT
Fast and furious: New class of 2D materials stores electrical energy Two dimensional titanium carbides, so-called MXenes, are being discussed as candidates for the rapid storage of electrical energy. The intercalation of urea between the MXene layers can increase the capacity.
Dr. Götz Schuck was awarded a poster prize at the PSCO-19
NEWS
Poster award for Götz Schuck At the 5th International Conference on Perovskite Solar Cells and Optoelectronics (PSCO19) Dr. Götz Schuck received a prize for his poster contribution.
Catherine Dubourdieu is head of the IFOX Institute at HZB and was elected now into the board of directors of the MRS.
NEWS
HZB Researcher on the Board of Directors of the Materials Research Society In September 2019, Prof. Dr. Catherine Dubourdieu was elected into the Board of Directors of the Materials Research Society (MRS). The MRS is one of the largest scientific associations and has almost 14000 members from various areas of the natural sciences ...
From left to right: Prof. Bernd Rech of HZB, Prof. Ulrich S. Schubert of CEEC Jena, and the President of Jena University, Prof. Walter Rosenthal, seal the cooperation.
NEWS
Memorandum of Understanding signed between University of Jena and HZB The Centre for Energy and Environmental Chemistry Jena (CEEC Jena) and HZB want to join forces to research novel energy storage materials and systems in the future.
Silvio Künstner (2nd from right) was awarded with five other young researchers at the EUROISMAR 2019 conference.
NEWS
HZB doctoral student won Young Scientist Award The "Journal of Magnetic Resonance" and the ISMAR (International Society of Magnetic Resonance) awarded Silvio Künstner with a Young Scientist Award. At the conference he presented the development of a miniaturized spectrometer.
The nano-antennae werde produced in an electron microscope by direct electron-beam writing.
SCIENCE HIGHLIGHT
Save time using maths: analytical tool designs corkscrew-shaped nano-antennae For the first time, an HZB team has derived analytically how corkscrew-shaped nano-antennas interact with light. The mathematical tool can be used to calculate the geometry that a nano-antenna must have for specific applications in sensor technology or ...
The rotary sample table turns around its axis at several hundred revolutions per second with extreme precision.
SCIENCE HIGHLIGHT
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.
The new german russian undulator beamline at BESSY II
NEWS
German Russian collaboration further strengthened at HZB Cooperation project at BESSY II further expanded: Research on topological insolators is pushed by additional funding from Helmholtz Funding
Prof. Dr. Christiane Becker in the clean room at HZB campus side Berlin-Adlershof.
PORTRAIT
FOCUS TOPIC: Catching more light in solar cells Christiane Becker uses microscopic structures to increase the amount of light captured in solar cells and is currently scaling up the technology for industrial application.
The photomontage shows a sample of solid, pure niobium before coating (left), and coated with a thin layer of Nb3Sn (right).
SCIENCE HIGHLIGHT
Accelerator physics: alternative material investigated for superconducting... An international collaboration has investigated the potential advantages a niobium-tin coating might offer in comparison to pure niobium.
SCIENCE HIGHLIGHT
Oldest completely preserved lily discovered Already 115 million years ago, tropical flowering plants were apparently very diverse and showed all typical characteristics. This is the conclusion of an international team of researchers led by Clément Coiffard, Museum für Naturkunde Berlin. The team ...
An X-ray pulse probes the delocalization of iron 3d electrons onto adjacent ligands.
SCIENCE HIGHLIGHT
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 ...
The illustration is alluding to the laser experiment in the background and shows the structure of TGCN.
SCIENCE HIGHLIGHT
Organic electronics: a new semiconductor in the carbon-nitride family Triazine-based graphitic carbon nitride (TGCN) is a semiconductor that should be highly suitable for applications in optoelectronics.
NEWS
Development of a miniaturised EPR spectrometer Several research institutions are developing a miniaturized electron paramagnetic resonance (EPR) device with industrial partner Bruker to investigate semiconductor materials, solar cells, catalysts and electrodes for fuel cells and batteries.
Experiments at the femtoslicing facility of BESSY II revealed the ultrafast angular momentum flow from Gd and Fe spins to the lattice via orbital moment during demagnetization of GdFe alloy.
SCIENCE HIGHLIGHT
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 ...
Tomography of a lithium electrode in its initial condition.
SCIENCE HIGHLIGHT
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 ...
SnSe is a highly layered orthorhombic structure. SnSe undergoes a phase transition of second order at 500°C with an increase of the crystal symmetry from space group Pnma (left) to Cmcm (right).
SCIENCE HIGHLIGHT
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 ...
Schematic view of carbon structures with pores.
SCIENCE HIGHLIGHT
X-ray analysis of carbon nanostructures helps material design A new study from the HZB has now shown that structural changes that occur due to morphology transition with increasing temperature of the synthesis can also be measured directly – using small-angle X-ray scattering.
Water molecules are excited with X-ray light (blue). From the emitted light (purple) information on H-bonds can be obtained.
SCIENCE HIGHLIGHT
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 ...
The cones represents the magnetization of the nanoparticles. In the absence of electric field (strain-free state) the size and separation between particles leads to a random orientation of their magnetization, known as superparamagnetism
SCIENCE HIGHLIGHT
Spintronics by “straintronics”: Superferromagnetism with electric-field induced... Spintronics by “straintronics”: Switching on superferromagnetism with electric-field induced strain
Neutrons (red arrows) detect the presence of Lithium ions which have migrated into the silicon anode.
SCIENCE HIGHLIGHT
Batteries with silicon anodes: Neutron experiments show how formation of... Batteries with silicon anodes: Neutron experiments show how formation of surface structures reduces amp-hour capacity
(a) Neutronen-Eigenspannungsmessung an einer Schweißprobe aus handelsüblichen Stahl, (b) Magnetfeldmessung, (c) Schweißnahtquerschliff.
SCIENCE HIGHLIGHT
Neutronenforschung hilft bei der Entwicklung von zerstörungsfreien Prüfverfahren Neutronenforschung hilft bei der Entwicklung von zerstörungsfreien Prüfverfahren
The STM image shows blue phosphorus on a gold substrate. The calculated atomic positions of the slightly elevated P atoms are shown in blue, the lower lying ones in white. Groups of six elevated P atoms appear as triangles.
SCIENCE HIGHLIGHT
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 ...
The theory group with Joe Dzubiella.
NEWS
Collaboration between HZB and the University of Freiburg Through a Joint Research Group entitled "Simulation of Energy Materials" Prof. Joachim Dzubiella of the Albert-Ludwigs-Universität, Freiburg will be able to continue his collaboration with the HZB. The theoretical physicist headed the "Theory and Simulation" ...
The HySPRINT logo (Helmholtz Innovation Lab) printed on a copper solution symbolizes how the thinnest material layers can be produced simply and cost-effectively. Possible applications are solar cells, organic LEDs or transistors. Photo
NEWS
Printing solar cells and organic LEDs Humboldt-Universität zu Berlin and Helmholtz-Zentrum Berlin form a joint lab and research group "Generative production processes for hybrid components”.
Granules of aluminium (grey) become a metallic foam when heated.The tompgraphies document the evolution of pores with time.
SCIENCE HIGHLIGHT
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 ...
Fossils like this 250 million year old skull of a lystrosaurus can be examined very carefully by neutron tomography.
SCIENCE HIGHLIGHT
Neutron tomography: Insights into the interior of teeth, root balls, batteries,... A team of researchers at Helmholtz-Zentrum Berlin (HZB) and European Spallation Source (ESS) has now published a comprehensive overview of neutron-based imaging processes in the renowned journal Materials Today (impact factor 21.6). The authors report on the ...
NEWS
Joint graduate school for data science sponsors its first projects The Helmholtz Association, the Einstein Center Digital Future (ECDF) and the universities of Berlin are creating a new PhD programme in Berlin for the field of data science. Helmholtz-Zentrum Berlin is involved in several of the projects. The first training ...
This optical zone melting furnace is producing large single crystals.
NEWS
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 ...
The YIW2017's dynamic discussions crowd.
NEWS
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 ...
The experimental data show, how a light pulse dissociates a hydrogen nucleus from the nitrogen atom without destroying important bonds within the molecule.
SCIENCE HIGHLIGHT
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 ...
With the upgrade BESSY VSR, Helmholtz-Zentrum Berlin will continue in future to offer a highly demanded synchrotron source for energy materials research with international appeal. Photo: ©: euroluftbild.de / Robert Grahn
NEWS
Green light for upgrading BESSY II into a variable-pulse-length storage ring... The General Assembly of the Helmholtz Association has unanimously endorsed the realisation of a unique accelerator project at the BESSY II synchrotron radiation source
NEWS
Young Investigators Workshop of the Helmholtz Virtual Institute "Dynamic... The Virtual Institute explores the governing principles of material’s function in an internationally highly visible centre of excellence. From now on, young scientists (PhD students, master students, and young postdocs) are invited to participate in the ...
Dr. Matthew Mayer
NEWS
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 ...
More than 100 experts did gather at the international conference "Dynamic Pathways in Multidimensional Landscapes", which was held in September in Berlin.
NEWS
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 ...
Participants of QENS 2016 and WINS 2016
NEWS
International conference QENS 2016 and Workshop WINS 2016 in Potsdam From 5th to 9th of September HZB has hosted two international scientific events dedicated to the study of the dynamics at nanoscale, QENS and WINS 2016. While Quasielastic Neutron scattering conference (QENS 2016) was dedicated to the scientific applications, ...
A section from the crystal lattice of Calcium-chromium oxide showing how the spins are subject to conflicting demands. In this ball-and-stick model, the green and red sticks connecting the atoms (grey and black balls) represent ferromagnetic interactions while the blue sticks represent anti-ferromagnetic interactions.
SCIENCE HIGHLIGHT
Novel state of matter: Observation of a quantum spin liquid A novel and rare state of matter known as a quantum spin liquid has been empirically demonstrated in a monocrystal of the compound calcium-chromium oxide by team at HZB. What is remarkable about this discovery is that according to conventional understanding, ...
The nanostructured membrane has a honeycomb pattern with nanoholes of 68 nm in diameter. The nanoholes pin down the magnetic domains.
SCIENCE HIGHLIGHT
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 ...
Combining the results from radiative and non-radiative relaxation processes enabled a complete picture of the filled and unfilled energy levels to be obtained.
SCIENCE HIGHLIGHT
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 ...
Dr. Catherine Dubourdieu is an internationally recognised expert in the field of functional oxides.
NEWS
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 ...
The team could observe for the first time with RIXS how the formation of hydrogen bonds does change C=O bonds in aceton molecules.
SCIENCE HIGHLIGHT
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 ...
Prof. Andreas Jankowiak beim Spatenstich für bERLinPro
NACHRICHT
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 ...
NACHRICHT
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 ...
Prof. Dr. Gerd Schneider becomes a full professur for x-ray microscopy at the Humboldt University Berlin and is the head of the HZB group "Microscopy".
NEWS
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 ...
Frostige Wissenschaften: Experimente mit flüssigem Stickstoff
NACHRICHT
Eine lange Nacht geballtes Wissen tanken Führungen an der Neutronenquelle, Experimente zur Energie für Groß und Klein, Licht-Show und vieles mehr
NEWS
Antique Osiris figurines from the Egyptian Museum of Florence examined with... An research team from the "Nello Carrara” Institute of Applied Physics, Italy, examined three antique bronze figurines non-invasively with neutrons at the Helmholtz-Zentrum Berlin für Materialien und Energie. The statuettes from the Egyptian Museum of ...
3D-Modelle der Beschleunigerhalle für bERLinPro
NACHRICHT
Baubeginn für Beschleunigerhalle bERLinPro am Helmholtz-Zentrum Berlin Am HZB- Standort Adlershof entsteht ein neuer Linearbeschleuniger mit Energierückgewinnung
Dichromium: both chromium atoms "share" the 12 valence electrons which leads to a multible bond.
SCIENCE HIGHLIGHT
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 ...
Prof. Dr. Jürgen Janek, Universität Gießen
NEWS
Distinguished Lectures at HZB: Prof. Jürgen Janek will give talk about the... The search for new and the development of improved electrochemical energy storage systems stimulates world-wide research efforts in both academia and industry. While impressive improvements and cost reductions are still to be expected for lithium ionbatteries ...
The High-Field Magnet (HFM) has attained 26 tesla in an initial test and thereby exceeded expectations. The HFM team is pleased about the well-deserved success.
NEWS
The BER II neutron source is back in operation and available for experiments... Maintenance work has been successfully concluded – the High-Field Magnet has successfully attained 26 tesla in initial testing. New scientific experiments have become possible.
180 scientists listened to the lectures. The aim of the dialogue is to identify future scientific fields as well as expectations, needs and requirements for BESSY II.
NEWS
BESSY II – From Pico to Femto – time resolved studies at BESSY II 180 scientists attended the workshop on time resolved studies
Aus dem Technikum
NACHRICHT
Hochfeldmagnet sucht Neutronenleiter Am Freitag, den 12. Dezember 2014 fand der Umzug des Hochfeldmagneten an seinen endgültigen Aufstellungsort in der Neutronenleiterhalle statt. Eine Spezialfirma für Maschinentransporte bugsierte den über 25 Tonnen schweren Stahlkoloss aus dem HFM-Technikum ...
Das HZB beteiligt sich am Aufbau zweier Studiengänge an derTürkisch-Deutschen Universität in Istanbul. www.tau.edu.tr
NACHRICHT
Deutsch-Türkische Universität am HZB zu Gast Vizerektor und Dekan der Naturwissenschaftlichen Fakultät besuchte mehrere Institute des HZB
In january 2014, the HFM was just delivered to HZB.
NEWS
26 tesla! High field magnet exceeds everyone’s expectations It’s done! The high field magnet is consistently producing magnetic fields of approx. 26 tesla and staying at this value over extended periods of time. And all this in spite of the fact that 26 tesla exceeds the original 25-tesla goal; in other words, ...
HZB Freigeist Fellow: Dr. Annika BandeFoto: Mirko Krenzel for VolkswagenStiftung
NEWS
HZB Freigeist Fellow Dr. Annika Bande As of early October, the HZB is home to one of the Volkswagen Foundation's Freigeist Fellows: Dr. Annika Bande recently joined Prof. Dr. Emad Aziz' institute "Methods for Material Development". There she will build up her own junior research group with ...
SCIENCE HIGHLIGHT
Tage der Forschung in Adlershof Am 25. und 26. September fanden in Adlershof die jährlichen Tage der Forschung statt. Das HZB bot rund 90 Schülerinnen und Schülern in drei unterschiedlichen Programmpunkten einen Einblick in die Welt der Forschung.
At first, the various parts are carefully unloaded so that they can be lifted quickly into the building through the roof of the NEAT building's newest addition.
NEWS
NEAT: The chamber from Spain - HZB future log's latest addition Since the HZB future log (#HZBzlog) went live in March of this year, there have been a total of 15 episodes on building and developing our future projects. The focus has been on three projects in particular: high field magnet (for a total of seven episodes), ...
SCIENCE HIGHLIGHT
“Multi-spectra glasses” for scanning electron microscopy Reflection zone plates produced by HZB enable lighter elements in material samples to be precisely detected using scanning electron microscopy (SEM) by providing high resolution in the range of 50-1120 eV.
SCIENCE HIGHLIGHT
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 ...
Im ehemaligen Plenarsaal der Bundesregierung in Bonn finden die Vortäge statt.
NACHRICHT
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 ...
Outstanding researchers took part in the "New Trends in Topological Insulators 2014” - workshop.
NEWS
Leading scientists on topological insulators met in Berlin From July 7-10, 150 researchers met in Berlin to discuss recent findings in the field of topological insulators.
SCIENCE HIGHLIGHT
Proteins: New class of materials discovered German-Chinese research team gleans seminal insights into protein crystalline frameworks at HZB's BESSY II
Cryogenic TEM micrograph of gold nanoparticles (Au-NP) in DES-solvent. Sputtering duration 300 s. Red circles show the different domains of self-assembled Au-NPs. The inset shows an enlarged image of one particular domain of self-assembled Au-NPs.
SCIENCE HIGHLIGHT
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 ...
Reconstructed energy-selective neutron tomography: Visualization of austenite and martensite distribution in torsion (two images to left) and tensile (image to the right) loading.
SCIENCE HIGHLIGHT
Neutron Tomography technique reveals phase fractions of crystalline materials... Researchers at Helmholtz-Zentrum Berlin (HZB) and The University of Tennessee Knoxville (UTK) developed a novel method, based on energy-selective neutron imaging for visualization of crystalline phase distributions within the bulk of metallic samples.
SEM image of the membrane.
SCIENCE HIGHLIGHT
“Muscled skin”: Simple formulas describe complex behaviors HZB researchers help chemists understand polymeric "biomimetic" materials' mechanical properties
These scanning electron micrographs show how accurately the three Fresnel zone plates were positioned above one another. 3D X-ray optics of this kind allow the resolutions and optical intensities to be considerably improved.
SCIENCE HIGHLIGHT
Sharper imaging using X-rays HZB team develops three-dimensional volume diffraction optics for X-rays
When inserting an ultrathin dielectric between metal electrode and organic semiconductor, charge carriers (shown here for a positively charged holes in red) are, counter intuitively, more efficiently extracted from their transport level (blue) in the organic to the Fermi level (black) in the metal than without the interlayer.
SCIENCE HIGHLIGHT
Electrostatics do the trick A simple model describes what happens between organic semiconductors and metals
Modell des Hochfeldmagneten im Maßstab 1:5
NACHRICHT
Der weltweit stärkste Magnet für Neutronenexperimente wird in Berlin errichtet Der Kooperationsvertrag zwischen dem Hahn-Meitner-Institut Berlin (HMI) und dem National High Magnetic Field Laboratory (NHMFL) Tallahassee (Florida State University) zum Bau eines neuen Hochfeldmagneten ist unterzeichnet worden. Er wird der weltweit stärkste ...
NACHRICHT
Stromsignal hinterlässt in Manganitkristall magnetische Spur Optische und kristallographische Experimente belegen erstmals, dass man magnetische Signale durch elektrische Felder erzeugen kann. Für die jetzt veröffentlichten Experimente ("Magnetic phase control by an electric field", Nature, 29. 7. 2004, 430 / 541-544) ...
NACHRICHT
Bose-Einstein-Kondensat: Magnetfelder erzeugen ungewöhnlichen Materiezustand In einem Experiment am Hahn-Meitner-Institut in Berlin wurden zum ersten Mal die magnetischen Eigenschaften eines Kristalls für die Erzeugung eines Bose-Einstein-Kondensats genutzt. Dieser ungewöhnliche Materiezustand entstand, als der Kristall in ein starkes ...
Erwin Müller und sein Feldionenmikroskop, Quelle:"Archiv zur Geschichte der Max-Plank-Gesellschaft, Berlin-Dahlem"
NACHRICHT
50 Jahre Feldionenmikroskopie In seiner Heimatstadt würdigt das 47. Internationale Feld-Emissions-Symposium, das vom Hahn-Meitner-Institut in Berlin-Wannsee organisiert wird, ganz besonders die wegweisenden Arbeiten Erwin W. Müllers - schließlich feiert nicht nur das Feldionenmikroskop ...
NACHRICHT
Nanoröhrchen sollen Bildschirme zum Leuchten bringen Der von IBM-Deutschland gestiftete Hahn-Meitner-Technologie-Transfer- Preis zeichnet Materialforscher des Hahn-Meitner-Instituts aus. Fünf Forscher haben unter Leitung von Prof. Dr. Alois Weidinger für ihre innovativen - und vermarktungsfähigen - ...
NACHRICHT
EU-Projekt zu exotischen Eigenschaften von Helium-3-Atomen Mit einer Förderung von rund einer Million Euro, verteilt über drei Jahre, startet am Hahn-Meitner-Institut ein internationales Grundlagenprojekt, das der weiteren Erforschung der faszinierenden exotischen Eigenschaften des Helium-3 Atoms gilt. Bei den ...
NACHRICHT
Neutronen verraten Wasserstoff in Eiweißen Mit immer aufwendigeren Methoden wollen Forscher die feinsten Strukturen auch der lebenden Materie erkunden. So nutzen sie Synchrotronstrahlung und Neutronen, um die atomare Architektur von Proteinen zu enträtseln. Proteine (Eiweiße) sind organische ...
NACHRICHT
Mit neuartigem magnetischen Käfig Lebensdauer von Neutronen genau messen Wissenschaftler des Hahn-Meitner-Instituts konnten gemeinsam mit Fachkollegen aus den USA erstmals Neutronen in einer neuartigen dreidimensionalen magnetischen Falle einschließen. Die Apparatur ist der Prototyp eines magnetischen Käfigs, der eine bisher ...
NACHRICHT
Margarita Russina erhält Promotionspreis mit Arbeit über atomare Diffusionsprozesse bei der Glasbildung Den Hahn-Meitner-Promotionspreis erhält am 1. Dezember 1999 die Physikerin Dr. Margarita Russina. Der Preisträgerin war es in besonderer Weise gelungen, die wissenschaftlichen Inhalte ihrer hervorragenden Promotionsarbeit in anschaulicher und für die ...