Published September 21, 1987
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Journal Article
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Quantum oscillations in the thermal conductance of GaAs/AlGaAs heterostructures
Abstract
Magneto-oscillations have, for the first time, been observed in the thermal conductance of GaAs/AlGaAs heterostructures containing two-dimensional electron systems. The oscillations result from a modulation of the thermal-phonon lifetime via coupling to the Landau-quantized electrons confined in quantum wells near the sample surface. These thermal-conductance measurements provide a new avenue for study of both the high-field density of states and the electron-phonon interaction in these semiconductor systems.
Additional Information
©1987 The American Physical Society Received 28 May 1987 It is a pleasure to acknowledge useful discussions with H. L. Stormer and M. Lax as well as the excellent technical assistance of A. Savage and M. A. Chin and the molecular-beam-epitaxy growth of crystals by W. Wiegmann.Files
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