ACMiN Seminar: „Berry phase effects in the layered topological metals”
Due to the recent growth of the number of new cases of coronavirus infections, we decided to move the seminar to a fully online form, starting from the next meeting. Therefore, we invite you to participate in the seminar this Thursday, November 25th at 14:00 CET via the link:
The lecture entitled „Berry phase effects in the layered topological metals” will be given by dr hab. Wojciech Brzezicki (UJ & MagTop).
We study the effects related to the Berry phases along Fermi cross-sections in two types of systems: (i) multilayers of topological crystalline insulator SnTe  and (ii) 2D heterostructures of transition metal oxides [2,3]. In case (i) we show that the mirror symmetry breaking can explain the features related to the weak antilocalization whereas in case (ii) we show that the observed sign change of the Hall conductance can be related to the topology of the occupied bands.
1. A. Kazakov, W. Brzezicki, T. Hyart, …,T. Dietl, Phys. Rev. B 103,
2. T.C. van Thiel, W. Brzezicki, C. Autieri, et al., Phys. Rev. Lett. 127,
3. D. J. Groenendijk, C. Autieri, T. C. van Thiel, W. Brzezicki, …, A.
D. Caviglia, Phys. Rev. Res. 2, 023404 (2020).
I acknowledge support by Narodowe Centrum Nauki (NCN, National Science Centre, Poland) Sonata Bis 9 Project No. 2019/34/E/ST3/00404.