Sixth Joint BER II and BESSY II User Meeting
The annual Joint HZB User Meetings will provide an overview of the many exciting and inspiring research results obtained at our facilities in the past year. The Sixth Joint BER II and BESSY II User Meeting will take place at Berlin-Adlershof from December 3rd to December 5th, 2014. The neutrons session will take place at Berlin-Wannsee on Wednesday, 3rd December, followed by Dinner at Café Jahn.
On Thursday morning, at WISTA, Bunsen Auditorium, Adlershof, Christof Wöll, KIT, will ask in his keynote lecture “What Supramolecular Chemistry can do for Solid State Physics?” The meeting continues with plenary talks, discussions, and a poster session, which will provide vast possibilities of information and discussion. In his public lecture, Christoph Lienau, University Oldenburg, will give an overview on “Solar cells and artificial light harvesting systems”.
Traditional highlights are the bestowals of the Prizes for Young Scientists donated by the “Freundeskreis Helmholtz-Zentrum Berlin e. V. “
After hours of inspiring scientific presentations we hope to meet you Thursday evening at the Berliner Buffet. The buffet is sponsored by the companies participating in the accompanying vendor exhibition. As well as this generous gesture the exhibitors will be happy to have the opportunity to inform you on the latest developments in all fields of research equipment.
Download User Meeting Booklet
- Largest magnetic anisotropy of a molecule measured at BESSY IIAt the Berlin synchrotron radiation source BESSY II, the largest magnetic anisotropy of a single molecule ever measured experimentally has been determined. The larger this anisotropy is, the better a molecule is suited as a molecular nanomagnet. Such nanomagnets have a wide range of potential applications, for example, in energy-efficient data storage. Researchers from the Max Planck Institute for Kohlenforschung (MPI KOFO), the Joint Lab EPR4Energy of the Max Planck Institute for Chemical Energy Conversion (MPI CEC) and the Helmholtz-Zentrum Berlin were involved in the study.
- Ultrafast dissociation of molecules studied at BESSY IIFor the first time, an international team has tracked at BESSY II how heavy molecules – in this case bromochloromethane – disintegrate into smaller fragments when they absorb X-ray light. Using a newly developed analytical method, they were able to visualise the ultrafast dynamics of this process. In this process, the X-ray photons trigger a "molecular catapult effect": light atomic groups are ejected first, similar to projectiles fired from a catapult, while the heavier atoms - bromine and chlorine - separate more slowly.
- Battery research with the HZB X-ray microscopeNew cathode materials are being developed to further increase the capacity of lithium batteries. Multilayer lithium-rich transition metal oxides (LRTMOs) offer particularly high energy density. However, their capacity decreases with each charging cycle due to structural and chemical changes. Using X-ray methods at BESSY II, teams from several Chinese research institutions have now investigated these changes for the first time with highest precision: at the unique X-ray microscope, they were able to observe morphological and structural developments on the nanometre scale and also clarify chemical changes.