Prediction of a quantum anomalous Hall state in Co-decorated silicene
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
Computational Physics and Materials Science (CPMS)
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AbstractBased 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.
CitationKaloni TP, Singh N, Schwingenschlögl U (2014) Prediction of a quantum anomalous Hall state in Co-decorated silicene. Phys Rev B 89. doi:10.1103/PhysRevB.89.035409.
PublisherAmerican Physical Society (APS)
JournalPhysical Review B