Weyl semimetal and topological phase transition in five dimensions

Biao Lian, Shou Cheng Zhang

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

We study two Weyl semimetal generalizations in five dimensions (5D) which have Yang monopoles and linked Weyl surfaces in the Brillouin zone, respectively, and carry the second Chern number as a topological number. In particular, we show a Yang monopole naturally reduces to a Hopf link of two Weyl surfaces when the TP (time reversal combined with space inversion) symmetry is broken. We then examine the phase transition between insulators with different topological numbers in 5D. In analogy to the three-dimensional case, 5D Weyl semimetals emerge as intermediate phases during the topological phase transition.

Original languageEnglish (US)
Article number235106
JournalPhysical Review B
Volume95
Issue number23
DOIs
StatePublished - Jun 5 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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