• 文献标题:   Topological Phase Diagram of BiTeX-Graphene Hybrid Structures
  • 文献类型:   Article
  • 作  者:   TAJKOV Z, VISONTAI D, OROSZLANY L, KOLTAI J
  • 作者关键词:   graphene, dft, topological insulator, spinorbit coupling
  • 出版物名称:   APPLIED SCIENCESBASEL
  • ISSN:  
  • 通讯作者地址:   Eotvos Lorand Univ
  • 被引频次:   1
  • DOI:   10.3390/app9204330
  • 出版年:   2019

▎ 摘  要

Combining graphene with other novel layered materials is a possible way for engineering the band structure of charge carriers. Strong spin-orbit coupling in BiTeX compounds and the recent fabrication of a single layer of BiTeI points towards a feasible experimental realization of a Kane-Mele phase in graphene-based heterostructures. Here, we theoretically demonstrate the tunability of the topological phase of hybrid systems built from graphene and BiTeX (X = I, Br, Cl) layers by uniaxial in-plane tensile and out-of plane compressive strain. We show that structural stress inherently present in fabricated samples could induce a topological phase transition, thus turning the sample in a novel experimental realization of a time reversal invariant topological insulator.