vorige Woche
nächste Woche
Wochenprogramm 23.10.2017 – 29.10.2017
Prof. Dr. Stefan Kirchner (Center for Correlated Matter, Zhejiang, University, Hangzhou, China)
Transport anomalies in ZrAs1.58Se0.39: Vacancies in the PbFCl structure as a route to two-channel Kondo physics
Seminar TPII/III EPVI, Raum: S-288
Andreas Weh (Theoretische Physik III)
DMFT + Poisson for Layered Heterostructures / Krankheitsbedingt abgesagt!
Lehrstuhlseminar Theoretische Physik II, Raum: T-2003
Dr. Peter Milde (TU Dresden, Institute of Applied Physics, Dresden)
Scanning Force Microscopy Investigations of Skyrmions

In the past decade, a lot of interest was spurred by discoveries of vortex-like magnetic states, so-called skyrmions, in a variety of materials characterized by the anisotropic Dzyaloshinskii-Moriya (DM) interaction. Originally introduced in the context of pion fields, the expression skyrmion today is used in a more general sense as a term for a mathematical construct, that describes a topologically stabilized, particle-like object. The topological nature of the skyrmions gives rise to new and exciting physics, such as the so-called topological protection, i.e. an increased stability against the superparamagnetic effect, as well as the topological Hall-effect, or the Skyrmion Hall-effect. Real-space imaging of these objects, especially on single crystals, is readily achieved using magnetic force microscopy. We review our scanning force microscopy investigations of skyrmions in direction bulk-DMI single crystal materials, such as FexCo(1-x)Si (x = 0:5), GaV4S8 and Cu2OSeO3 and report on recent findings.

Sonderseminar TRR80, Raum: R-242
Prof. Dr. Vasily Moshnyaga (Georg-August-Universität Göttingen, Germany)
Order / disorder phenomena in perovskite films
Sonderseminar TRR80, Raum: S-254
Dr. Stefan Kirchner und Dr. Michael Knap (Zhejiang University, Hangzhou, China und TU München)
Focused Lecture: Quantum Phase Transitions
Integrierte Graduiertenschule TRR80, Raum: S-403 (Videoübertragung von TUM Garching, 2224 (E21))