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Quantum oscillations in the thermal conductance of GaAs/AlGaAs heterostructures

Eisenstein, J. P. and Gossard, A. C. and Narayanamurti, V. (1987) Quantum oscillations in the thermal conductance of GaAs/AlGaAs heterostructures. Physical Review Letters, 59 (12). pp. 1341-1344. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:EISprl87

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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.


Item Type:Article
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.
Record Number:CaltechAUTHORS:EISprl87
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:EISprl87
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.59.1341
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4038
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:25 Jul 2006
Last Modified:26 Dec 2012 08:57

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