Topological crystalline insulators and Dirac octets in antiperovskites
Name
PhysRevB.90.081112.pdf
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667.4 KB
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Checksum (MD5)
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Author(s)
Liu, Junwei
Fu, Liang
Hsieh, Timothy Hwa-wei
Date Issued
August 2014
Journal
Physical Review B
Publisher
American Physical Society
Citation
Hsieh, Timothy H., Junwei Liu, and Liang Fu. "Topological crystalline insulators and Dirac octets in antiperovskites." Phys. Rev. B 90, 081112 (August 2014). © 2014 American Physical Society
Version
Final published version
Abstract
We predict a class of topological crystalline insulators in the antiperovskite material family with the chemical formula A[subscript 3]BX. Here the nontrivial topology arises from band inversion between two J = 3/2 quartets, which is described by a generalized Dirac equation for a “Dirac octet.” Our work suggests that antiperovskites are a promising venue for exploring the cooperative interplay between band topology, crystal symmetry, and electron correlation.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.90.081112
