Topological Kondo Insulators

Maxim Dzero, Jing Xia, Victor Galitski, Piers Coleman

Research output: Contribution to journalReview ArticleResearchpeer-review

119 Citations (Scopus)

Abstract

This article reviews recent theoretical and experimental work on a new class of topological material-topological Kondo insulators, which develop through the interplay of strong correlations and spin-orbit interactions. The history of Kondo insulators is reviewed along with the theoretical models used to describe these heavy fermion compounds. The Fu-Kane method of topological classification of insulators is used to show that hybridization between the conduction electrons and localized f electrons in these systems gives rise to interaction-induced topological insulating behavior. Finally, some recent experimental results are discussed, which appear to confirm the theoretical prediction of the topological insulating behavior in samarium hexaboride, where the long-standing puzzle of the residual low-temperature conductivity has been shown to originate from robust surface states.

Original languageEnglish
Pages (from-to)249-280
Number of pages32
JournalAnnual Review of Condensed Matter Physics
Volume7
DOIs
Publication statusPublished - 10 Mar 2016

Keywords

  • Heavy fermions
  • Kondo lattice
  • Topological insulators

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