Giant Faraday effect due to Pauli exclusion principle in 3D topological insulators
نویسندگان
چکیده
منابع مشابه
Giant magneto-optical Kerr effect and universal Faraday effect in thin-film topological insulators.
Topological insulators can exhibit strong magneto-electric effects when their time-reversal symmetry is broken. In this Letter we consider the magneto-optical Kerr and Faraday effects of a topological insulator thin film weakly exchange coupled to a ferromagnet. We find that its Faraday rotation has a universal value at low frequencies θF=tan(-1)α, where α is the vacuum fine structure constant,...
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ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2014
ISSN: 0953-8984,1361-648X
DOI: 10.1088/0953-8984/26/8/082201