Topological nematic phase in Dirac semimetals

Rui Xing Zhang, Jimmy A. Hutasoit, Yan Sun, Binghai Yan, Cenke Xu, Chao Xing Liu

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

We study the interaction effect in a three-dimensional Dirac semimetal and find that two competing orders, charge-density-wave orders and nematic orders, can be induced to gap the Dirac points. Applying a magnetic field can further induce an instability towards forming these ordered phases. The charge-density-wave phase is similar to that of a Weyl semimetal, while the nematic phase is unique for Dirac semimetals. Gapless zero modes are found in the vortex core formed by nematic order parameters, indicating the topological nature of nematic phases. The nematic phase can be observed experimentally using scanning tunneling microscopy.

Original languageEnglish (US)
Article number041108
JournalPhysical Review B
Volume93
Issue number4
DOIs
StatePublished - Jan 26 2016

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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