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[摘要]：The electronic band structures of Bi1-xSbx thin films can be varied as a function of temperature, pressure, stoichiometry, film thickness, and growth orientation. We here show how different anisotropic single-Dirac-cones can be constructed in a Bi1-xSbx thin film for different applications or research purposes. For predicting anisotropic single-Dirac-cones, we have developed an iterative-two-dimensional-two-band model to get a consistent inverse-effective-mass-tensor and band gap, which cm be used in a general two-dimensional system that has a nonparabolic dispersion relation as in the Bi1-xSbx thin film system. |
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