Prediction of a quantum anomalous Hall state in Co-decorated silicene

T. P. Kaloni; N. Singh; U. Schwingenschlögl

doi:10.1103/PhysRevB.89.035409

Prediction of a quantum anomalous Hall state in Co-decorated silicene

T. P. Kaloni
, N. Singh
, U. Schwingenschlögl

Physics

King Abdullah University of Science and Technology

Research output: Contribution to journal › Article › peer-review

122 Scopus citations

Abstract

Based on first-principles calculations, we demonstrate that Co-decorated silicene can host a quantum anomalous Hall state. The exchange field induced by the Co atoms combined with the strong spin-orbit coupling of the silicene opens a nontrivial band gap at the K point. As compared to other transition metals, Co-decorated silicene is unique in this respect, since usually hybridization and spin-polarization induced in the silicene suppress a quantum anomalous Hall state.

Original language	British English
Article number	035409
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	89
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevB.89.035409
State	Published - 9 Jan 2014

Keywords

73.22.Gk
73.43.Cd
75.50.Pp

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Prediction of a quantum anomalous Hall state in Co-decorated silicene

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Keywords

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