Barrier Breakdown in a Multiple Quantum Well StructureReportar como inadecuado




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1 MPQ - Matériaux et Phénomènes Quantiques 2 Thales Research and Technology Palaiseau 3 LPA - Laboratoire Pierre Aigrain

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. Magnetotransport experiments reveal different transport regimes. Quantum well impact ionization shifts the structure from a resistive -down- state, where the current flows through interwell 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.





Autor: Aurore Gomez - Vincent Berger - Nicolas Péré-Laperne - Louis-Anne De Vaulchier -

Fuente: https://hal.archives-ouvertes.fr/



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