Appearance of pseudo-band-gaps in a disordered quantum wire array |
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Authors: | Hiroshi Tsukahara Tsuneya Ando |
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Institution: | Department of Physics, Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan |
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Abstract: | The density of states and the conductivity are calculated in lateral superlattices with disorder in the period within a self-consistent Born approximation. Although the potential loses its periodicity on average due to disorder, it leads to an opening up of a pseudo-band-gap and modifies the conductivity perpendicular to the superlattice even qualitatively, when the energy reaches the zone boundary. |
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Keywords: | Lateral superlattice Anisotropic mobility Periodic corrugation Bragg scattering |
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