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Topological Metal of NaBi with Ultralow Lattice Thermal Conductivity and Electron-phonon Superconductivity
R. H.; Cheng Li, X. Y.; Xie, Q.; Sun, Y.; Li, D. Z.; Li, Y. Y.; Chen, X. Q.
2015
Source PublicationScientific Reports
ISSN2045-2322
Volume5
AbstractBy means of first-principles and ab initio tight-binding calculations, we found that the compound of NaBi is a three-dimensional non-trivial topological metal. Its topological feature can be confirmed by the presence of band inversion, the derived effective Z(2) invariant and the non-trivial surface states with the presence of Dirac cones. Interestingly, our calculations further demonstrated that NaBi exhibits the uniquely combined properties between the electron-phonon coupling superconductivity in nice agreement with recent experimental measurements and the obviously anisotropic but extremely low thermal conductivity. The spin-orbit coupling effects greatly affect those properties. NaBi may provide a rich platform to study the relationship among metal, topology, superconductivity and thermal conductivity.
description.department[li, ronghan ; cheng, xiyue ; xie, qing ; sun, yan ; li, dianzhong ; li, yiyi ; chen, xing-qiu] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; chen, xq (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; xingqiu.chen@imr.ac.cn
KeywordQuantum Spin Hall Total-energy Calculations Augmented-wave Method Phase-transition Dirac Semimetal Basis-set Insulators Emergence
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73843
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
R. H.,Cheng Li, X. Y.,Xie, Q.,et al. Topological Metal of NaBi with Ultralow Lattice Thermal Conductivity and Electron-phonon Superconductivity[J]. Scientific Reports,2015,5.
APA R. H..,Cheng Li, X. Y..,Xie, Q..,Sun, Y..,Li, D. Z..,...&Chen, X. Q..(2015).Topological Metal of NaBi with Ultralow Lattice Thermal Conductivity and Electron-phonon Superconductivity.Scientific Reports,5.
MLA R. H.,et al."Topological Metal of NaBi with Ultralow Lattice Thermal Conductivity and Electron-phonon Superconductivity".Scientific Reports 5(2015).
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