Topological insulators in Bi2Se3, Bi2Te3 and Sb2Te3 with a single Dirac cone on the surface

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2009
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Abstract
First-principles calculations predict that Bi2Se3, Bi2Te3 and Sb2Te3 are topological insulators—three-dimensional semiconductors with unusual surface states generated by spin–orbit coupling—whose surface states are described by a single gapless Dirac cone. The calculations further predict that Bi2Se3 has a non-trivial energy gap larger than the energy scale kBT at room temperature.
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Authors Haijun Zhang;Chao-Xing Liu;Xiao-Liang Qi;Xi Dai;Zhong Fang;Shou-Cheng Zhang;Haijun Zhang;Chao-Xing Liu;Xiao-Liang Qi;Xi Dai;Zhong Fang;Shou-Cheng Zhang;
Journal Nature Physics
Year 2009
DOI
doi:10.1038/nphys1270
URL
https://dx.doi.org/10.1038/nphys1270
Keywords
physics complex systems condensed matter physics Molecular general atomic optical and plasma physics classical and continuum physics theoretical mathematical and computational physics physics complex systems condensed matter physics Molecular general atomic optical and plasma physics classical and continuum physics theoretical mathematical and computational physics

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