Planar Hall effect from the surface of topological insulators

Topological surface states can lose their protection in many ways but the subtle mechanisms remain far from well understood. Here, Taskin et al. report a novel planar Hall effect in dual-gated Bi2−x Sb x Te3 thin films, originating from anisotropic lifting of time reversal symmetry protection by an...

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Auteurs principaux: A. A. Taskin, Henry F. Legg, Fan Yang, Satoshi Sasaki, Yasushi Kanai, Kazuhiko Matsumoto, Achim Rosch, Yoichi Ando
Format: article
Langue:EN
Publié: Nature Portfolio 2017
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Accès en ligne:https://doaj.org/article/98e67d40857e4fa7b51e4aa5952fac76
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Résumé:Topological surface states can lose their protection in many ways but the subtle mechanisms remain far from well understood. Here, Taskin et al. report a novel planar Hall effect in dual-gated Bi2−x Sb x Te3 thin films, originating from anisotropic lifting of time reversal symmetry protection by an in-plane magnetic field.