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Journal Article

Topological Kondo Insulators


Dzero,  Maxim
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Dzero, M., Xia, J., Galitski, V., & Coleman, P. (2016). Topological Kondo Insulators. Annual Review of Condensed Matter Physics, 7, 249-280. doi:10.1146/annurev-conmatphys-031214-014749.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-39ED-2
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.