Electronic structure of the quantum spin Hall parent compound CdTe and related topological issues

Jie Ren, Guang Bian, Li Fu, Chang Liu, Tao Wang, Gangqiang Zha, Wanqi Jie, Madhab Neupane, T. Miller, M. Z. Hasan, T. C. Chiang

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Cadmium telluride (CdTe), a compound widely used in devices, is a key base material for the experimental realization of the quantum spin Hall phase. We report herein a study of the electronic structure of CdTe by angle-resolved photoemission spectroscopy from well-ordered (110) surfaces. The results are compared with first-principles calculations to illustrate the topological distinction between CdTe and a closely related compound HgTe. Through a theoretical simulation a topological phase transition as well as the Dirac-Kane semimetal phase at the critical point was demonstrated in the mixed compound HgxCd1-xTe.

Original languageEnglish (US)
Article number205211
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume90
Issue number20
DOIs
StatePublished - Nov 17 2014

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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