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Quantum conductivity in the topological surface state in the SbV3S5 kagome lattice.
- Source :
- Physical Chemistry Chemical Physics (PCCP); 8/21/2022, Vol. 24 Issue 31, p18983-18991, 9p
- Publication Year :
- 2022
-
Abstract
- We have successfully predicted the local topological bands in the frustrated kagome lattice SbV<subscript>3</subscript>S<subscript>5</subscript>. An important future research direction is to raise the kagome band with novel co-existing strong nonlinear dispersion and strong cohesion due to the anisotropic inner field of kagome SbV<subscript>3</subscript>S<subscript>5</subscript> to the Fermi level. The Z<subscript>2</subscript> topological index of T-invariant systems provides evidence for a σ<subscript>yz</subscript> near the Fermi level that determines the quantum anomalous Hall state. This shows that the quantum anomalous Hall effect (QAHE) phase of the kagome lattice SbV<subscript>3</subscript>S<subscript>5</subscript> has a weak topological stability that is sensitive to weak disorder and field interactions. Neighbouring van Hove singularities near the Fermi level induced a quantum anomalous Hall conductivity and charge density wave platform. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14639076
- Volume :
- 24
- Issue :
- 31
- Database :
- Complementary Index
- Journal :
- Physical Chemistry Chemical Physics (PCCP)
- Publication Type :
- Academic Journal
- Accession number :
- 158477400
- Full Text :
- https://doi.org/10.1039/d2cp02085h