Kiel Nano, Surface and Interface Science (KiNSIS)

Young scientists received awards

Nov 12, 2020

Vahl und JoostFor his dissertation, KiNSIS member and materials scientist Dr.-Ing. Alexander Vahl was awarded one of the Prizes for Young Talents 2019 of the Deutsche Gesellschaft für Materialkunde (DGM) at this year's virtual DGM Day (21 September 2020). Furthermore, Jan-Philip Joost, PhD student in the working group of KiNSIS member Prof. Dr. Michael Bonitz, Static Physics, received one of the "Best Phd student oral contribution Awards" for his presentation at the online conference Graphene 2020 (19-23 October 2020). More information

Dr.-Ing. Alexander Vahl

In his dissertation "On the development of memsensors" Alexander Vahl has developed memristors based on alloy nanoparticles and linked them to a sensor function to achieve adaptation effects similar to sensors in sensory organs. He completed his PhD within the Research Group 2093 "Memristive Devices for Neuronal Systems". Supervisor Prof. Dr. Franz Faupel, Chair for Multicomponent Materials and a KiNSIS member as well, emphasised in his laudation Vahl's "impressive work", which has already led to 16 publications in internationally high-ranking journals and "received a lot of attention". The DGM Young Investigators Award is aimed at doctoral students and postdocs who are doing research in the field of materials science and materials engineering and who can be expected to achieve "above-average performance" on the basis of their previous study and work results. The prize includes a voucher of 500,- EUR for the participation in DGM events.
Link to the laudatio on the DGM-Website

Jan-Philip Joost

At the Graphene 2020, Jan-Philip Joost, Phd student in the Group of KiNSIS member Prof.Dr. Michael Bonitz, Chair of Statistical Physics, gave a talk titled "Correlated Topological States in Graphene Nanoribbon Heterostructures", co-author next to Michael Bonitz is Antti-Pekka Jauho from the TU Denmark. Finite graphene nanoribbon (GNR) heterostructures host intriguing topological in-gap states. These states may be localized either at the bulk edges or at the ends of the structure. The authors showed that correlation effects play a key role in these systems: they result in increased magnetic moments at the ribbon edges accompanied by a significant energy renormalization of the topological end states, even in the presence of a metallic substrate. Joost presented simulations of 7-9-armchair-GNRs based on a Green functions method with GW self-energy applied to an effective Hubbard model. The computed results for the differential conductance are in excellent agreement with experimental observations. Furthermore, they discovered a striking, novel mechanism that causes an energy splitting of the nonzero-energy topological end states for a weakly screened system. Similar effects should be observable in other GNR heterostructures as well.
Link to the abstract of the talk (PDF)

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  • 12:00: KiNSIS Colloquium: Dr. Eiken Friedrichsen, Leitung CAU-Referat Forschungsinformationssystem
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  • 16:00: Touch-free Cardiovascular Monitoring – Microwave Technology as Key for Novel Diagnostic Approaches (Alexander Kölpin, TUHH Hamburg)
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  • 17:00: Benchside to Bedside: Imaging agents for cancer diagnosis (Garima Singh, ROTOP Pharmaka GmbH)
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  • 16:00: Neuronal connectivity and computations in olfactio (Rainer W. Friedrich, Friedrich Miescher Institute for Biomedical Research, Switzerland)
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