Speakers: Pavel Středa (Department of Semiconductors, FZÚ AV ČR, v.v.i.)
Place: Na Slovance, main lecture hall
Presented in English
Organisers:
Department of Condensed Matter Theory
Abstract: A two-dimensional network model representing an array of coupled orbitals of non-zero orbital momenta has been used to illustrate the origin of the anomalous Hall effect. For a coupling stronger than a critical value the topological phase transformation leading to the existence of chiral edge states has been observed. The corresponding anomalous Hall conductivity becomes quantized, as experimentally observed in magnetic topological insulators.
Copyright © 2008-2014, Fyzikální ústav AV ČR, v. v. i.
