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2001 | 100 | 3 | 403-408
Article title

High-Pressure Magnetotransport Measurements of Resonant Tunnelling via X-Minimum Related States in AlAs Barrier

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Languages of publication
EN
Abstracts
EN
In this paper, we present the results of magnetotransport experiments performed on a single barrier GaAs/AlAs/GaAs heterostructures. Tunnel current was measured as a function of magnetic field for different values of bias voltage and hydrostatic pressure. We observed that the amplitude of the magnetooscillations of tunnel current quenched when the requirements for resonant tunnelling were met and it recovered in out-of-resonance conditions. This effect was observed both for tunnelling through donor states and through X-minimum related quasiconfined conduction band states. The fact that also in the latter case the amplitude was restored suggests that this process involved X_z subbands and took place without a participation of phonons (the so-called k_ǁ-conserving process).
Keywords
EN
Publisher

Year
Volume
100
Issue
3
Pages
403-408
Physical description
Dates
published
2001-09
received
2001-06-01
Contributors
author
  • Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland
author
  • Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland
author
  • Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland
author
  • Department of Physics, University of Nottingham, University Park, Nottingham NG7 2RD, UK
author
  • Department of Physics, University of Nottingham, University Park, Nottingham NG7 2RD, UK
References
  • 1. I.E. Itskevich, L. Eaves, P.C. Main, M. Henini, G. Hill, Phys. Rev. B, 57, 7214, 1998
  • 2. M. Gryglas, J. Przybytek, M. Baj, L. Eaves, M. Henini, High Pressure Res., 18, 63, 2000
  • 3. H.W. van Kesteren, E.C. Cosman, P. Dawson, K.J. Moore, C.T. Foxon, Phys. Rev. B, 39, 13426, 1989
  • 4. J.J. Finley, R.J. Teissier, M.S. Skolnick, J.W. Cockburn, G.A. Roberts, R. Grey, G. Hill, M.A. Pate, R. Planel, Phys. Rev. B, 58, 10619, 1998
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv100n303kz
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