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arXiv · 0711.0890

Barrier breakdown in a multiple quantum well structure

A. Gomez·V. Berger·N. Pere-Laperne·L. A. De Vaulchier
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Abstract

We explore a regime of unipolar electronic transport in a multiple quantum well structure with very large current discontinuities - up to five orders of magnitude. Magneto-transport experiments reveal different transport regimes. Quantum well impact ionization shifts the structure from a resistive down state, where the current flows through inter-well quantum tunneling, to a highly conductive up state. In the latter regime, the current leaks through a barrier suddenly broken down because of an efficient ionization of the first quantum well.

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A. Gomez, V. Berger, N. Pere-Laperne, L. A. De Vaulchier. 2007-11-06. Barrier breakdown in a multiple quantum well structure. https://doi.org/10.1063/1.2927472

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