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Intrinsic Quantum Anomalous Hall Effect in Two-dimensional Anilato-based Lattice

Abstract

Using first-principles calculations, we predict an intrinsic quantum anomalous Hall (QAH) state in a monolayer anilato-based metal-organic framework M2(C6O4X2)3 (M = Mn and Tc, X = F, Cl, Br and I). Spin-orbit coupling of M d orbitals opens a nontrivial band gap up to 18 meV at the Dirac point. The electron counting rule is used to explain the intrinsic nature of the QAH state. The calculated nonzero Chern number, gapless edge states and quantized Hall conductance all confirm the nontrivial topological properties in the anilato-based lattice. Our findings provide an organic materials platform for the realization of QAH effect without the need of magnetic and charge doping, which are highly desirable for the development of the low-energy-consumption spintronic devices.

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Publication details

The article was received on 02 Apr 2018, accepted on 16 May 2018 and first published on 16 May 2018


Article type: Paper
DOI: 10.1039/C8NR02651C
Citation: Nanoscale, 2018, Accepted Manuscript
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    Intrinsic Quantum Anomalous Hall Effect in Two-dimensional Anilato-based Lattice

    X. Ni, W. Jiang, H. Huang, K. Jin and F. Liu, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR02651C

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