Year: 2016
Type: article
Abstract: The Faraday effect is a representative magneto-optical phenomenon, resulting from the transfer of angular momentum between interacting light and matter in which time-reversal symmetry has been broken by an externally applied magnetic field. Here we report on the Faraday rotation induced in the prominent 3D topological insulator Bi2Se3 due to bulk interband excitations. The origin of this non-resonant effect, extraordinarily strong among other non-magnetic materials, is traced back to the specific Dirac-type Hamiltonian for Bi2Se3, which implies that electrons and holes in this material closely resemble relativistic particles with a non-zero rest mass.
Source: Scientific Reports
DOI: 10.1038/srep19087
Institutions: Charles University, Centre National de la Recherche Scientifique, Université Joseph Fourier, Laboratoire National des Champs Magnétiques Intenses, Ural Federal University, University of Strathclyde, Institute of Solid State Chemistry, University of Pardubice, Institute of Electronic Materials Technology
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
OpenAlex ID: W2260964918