Intrinsic quantum anomalous Hall effect in the kagome lattice Cs2LiMn3F12

Xu, Gang; Lian, Biao; Zhang, Shou -Cheng

doi:10.1103/PhysRevLett.115.186802

Title: Intrinsic quantum anomalous Hall effect in the kagome lattice Cs₂LiMn₃F₁₂

Journal Article · Tue Oct 27 00:00:00 EDT 2015 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.115.186802· OSTI ID:1263391

Xu, Gang ^[1]; Lian, Biao ^[1]; Zhang, Shou -Cheng ^[1]

Stanford Univ., Stanford, CA (United States). Dept. of Physics

In a kagome lattice, the time reversal symmetry can be broken by a staggered magnetic flux emerging from ferromagnetic ordering and intrinsic spin-orbit coupling, leading to several well-separated nontrivial Chern bands and intrinsic quantum anomalous Hall effect. Based on this idea and ab initio calculations, we propose the realization of the intrinsic quantum anomalous Hall effect in the single layer Cs₂Mn₃F₁₂ kagome lattice and on the (001) surface of a Cs₂LiMn₃F₁₂ single crystal by modifying the carrier coverage on it, where the band gap is around 20 meV. Furthermore, a simplified tight binding model based on the in-plane ddσ antibonding states is constructed to understand the topological band structures of the system.

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Research Organization:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1263391

Alternate ID(s):: OSTI ID: 1224374

Report Number(s):: SLAC-PUB-16645; PRLTAO; arXiv:1507.04043

Journal Information:: Physical Review Letters, Vol. 115, Issue 18; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 104 works

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