Current oscillations in a superlattice under non-quantizing electric and magnetic fields

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We calculate the current density in a semiconductor superlattice with parabolic miniband under crossed non-quantizing electric and magnetic fields. The Corbino disk geometry is considered. The current-voltage curve contains oscillations with period proportional to the magnetic field. The possibility is shown of the negative absolute conductivity. The Ampere-Gauss characteristics also contain overshoots under high enough electric fields. In all cases, the peaks smear with temperature rising.
8 pages, 4 figures

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Mesoscale and Nanoscale Physics, Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/231131

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0905.3457
 http://arxiv.org/abs/0905.3457

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arXiv