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

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

2009-05-21

arxiv.org/abs/0905.3457v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 4 figures

Scientific paper

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.

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