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Intersubband transport in quantum wells in strong magnetic fields mediated by single- and two-electron scattering.

Authors
Type
Published Article
Journal
Physical Review Letters
0031-9007
Publisher
American Physical Society
Publication Date
Volume
88
Issue
22
Pages
226803–226803
Identifiers
PMID: 12059443
Source
Medline

Abstract

We show theoretically that in quantum wells subjected to a strong magnetic field the intersubband current peaks at magnetic field values, which reveal the underlying specific intersubband scattering mechanism. We have designed and grown a superlattice structure in which such current oscillations are clearly visible, and in which the transition from the purely single-electron to the mixed single- and two-electron scattering regimes can be observed by tuning the applied voltage bias. The measurements were conducted in ultrahigh magnetic fields (up to 45 T) to obtain the full spectrum of the current oscillations.

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