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arXiv · 0804.0076

Interband Effects of Magnetic Field on Hall Effects for Dirac Electrons in Bismuth

Yuki Fuseya·Masao Ogata·Hidetoshi Fukuyama
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Abstract

Hall effects are investigated for three-dimensional Dirac electrons as a model of bismuth alloys. It is found that there is unconventional contributions to the Hall conductivity $σ_{xy}$ generated by the interband effects of a magnetic field. This phenomena is remarkable near the band-edge. The Hall coefficient exhibits two unexpected properties; a sharp peak at around the band-edges, and a drastic sign change in the band gap region. Implications of the present results to bismuth alloys are discussed.

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Yuki Fuseya, Masao Ogata, Hidetoshi Fukuyama. 2008-04-01. Interband Effects of Magnetic Field on Hall Effects for Dirac Electrons in Bismuth. https://doi.org/10.1103/physrevlett.102.066601

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