TU Berlin appoints Renske van der Veen as professor
Dr. Renske van der Veen investigates catalytic processes at BESSY II, which are crucial for the production of green hydrogen, among other things. © M: Setzpfandt/HZB
For the past two years, Dr Renske van der Veen has led a research group in time-resolved X-ray spectroscopy and electron microscopy at HZB. Her research focuses on catalytic processes that enable, for example, the production of green hydrogen. She has now been appointed to a S-W2 professorship at the Institute of Optics and Atomic Physics (IOAP) at the Technische Universität Berlin.
Dr Renske van der Veen specialises in ultrafast X-ray methods, which she uses at BESSY II to study the fast processes involved in catalysis. Van der Veen is also contributing her expertise to the scientific requirements profile for the successor X-ray source BESSY III.
Renske van der Veen studied at the ETH Zurich and completed her PhD at the École Polytechnique Fédérale de Lausanne (EPFL). She went on to do research at the California Institute of Technology, the Max Planck Institute for Biophysical Chemistry in Göttingen and the University of Illinois, where she was also an assistant professor. She has received the Alexander von Humboldt Foundation's Sofja Kovalevskaja Award and the Packard Fellowship for Science and Engineering.
Spintronics at BESSY II: Domain walls in magnetic nanowires
Magnetic domains walls are known to be a source of electrical resistance due to the difficulty for transport electron spins to follow their magnetic texture. This phenomenon holds potential for utilization in spintronic devices, where the electrical resistance can vary based on the presence or absence of a domain wall. A particularly intriguing class of materials are half metals such as La2/3Sr1/3MnO3 (LSMO) which present full spin polarization, allowing their exploitation in spintronic devices. Still the resistance of a single domain wall in half metals remained unknown. Now a team from Spain, France and Germany has generated a single domain wall on a LSMO nanowire and measured resistance changes 20 times larger than for a normal ferromagnet such as Cobalt.
Graphene on titanium carbide triggers a novel phase transition
Researchers have discovered a Lifshitz-transition in TiC, driven by a graphene overlayer, at the photon source BESSY II. Their study sheds light on the exciting potential of 2D materials such as graphene and the effects they can have on neighboring materials through proximity interactions.
“Jugend-forscht” winners at HZB (Update)
Charlotte Klar and Katharina Austermann (both 18) have already come a long way: With their experiments on pyrolytic graphite, they are trying to solve a puzzle they found in the technical literature on diamagnetism. With their work, they convinced both the Jugend-forscht-Jury at the Berlin South Regional Competition and the Berlin Competition. Now, they will join the national competition which will take place from 18 to 21 May in Bremen.