Direct observation of resonant subband-Landau-level coupling in a transport experiment

K. Ensslin; C. Pistitsch; A. Wixforth; M. Sundaram; P. F. Hopkins; A. C. Gossard

doi:10.1103/PhysRevB.45.11407

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Direct observation of resonant subband-Landau-level coupling in a transport experiment

K. Ensslin, C. Pistitsch, A. Wixforth, M. Sundaram, P. F. Hopkins, and A. C. Gossard

Phys. Rev. B 45, 11407(R) – Published 15 May 1992

Abstract

A parabolic quantum well is investigated by low-temperature transport experiments in tilted magnetic fields. The resonant anticrossing of occupied Landau levels belonging to different subbands is manifested directly in the magnetoresistance. This allows a direct evaluation of the single-particle energy spectrum of the system.

Received 16 December 1991

DOI:https://doi.org/10.1103/PhysRevB.45.11407

Authors & Affiliations

K. Ensslin, C. Pistitsch, and A. Wixforth

Sektion Physik der Universität München, Geschwister-Scholl Platz 1, 8000 München 22, Germany

M. Sundaram, P. F. Hopkins, and A. C. Gossard

Materials Department, University of California, Santa Barbara, California 93106

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Vol. 45, Iss. 19 — 15 May 1992

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Physical Review B

covering condensed matter and materials physics