Disorder enabled band structure engineering of a topological insulator surface

The surface electrons in a topological insulator are resistant to localization by nonmagnetic disorder, but are affected by lattice disorder. Here, the authors show that resonance states near lattice defects on the surface have significance beyond the localized regime usually associated with impurit...

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Autores principales: Yishuai Xu, Janet Chiu, Lin Miao, Haowei He, Zhanybek Alpichshev, A. Kapitulnik, Rudro R. Biswas, L. Andrew Wray
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/e30e90bab03e438b8fbd921e2ecf3438
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Sumario:The surface electrons in a topological insulator are resistant to localization by nonmagnetic disorder, but are affected by lattice disorder. Here, the authors show that resonance states near lattice defects on the surface have significance beyond the localized regime usually associated with impurity bands.