Interaction of Surface Acoustic Waves with Inversion Electrons on GaAs in Quantizing Magnetic Fields
Investigations of the interaction between surface acoustic waves (SAW) and a two-dimensional electron system in GaAs/A1GaAs heterojunctions at low temperatures and in high magnetic fields are reviewed. Experimental results demonstrating the dependence on quantizing magnetic fields and on SAW power and frequency are presented and discussed. It is shown that the interaction is strongest in the Quantum Hall regime and thus can serve as an additional tool to study quantum phenomena in two-dimensional electron systems.
KeywordsHigh Magnetic Field Quantum Hall Effect Quantum Oscillation Piezoelectric Medium Electromechanical Coupling Coefficient
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- for a recent review see, e.g., L. J. Challis, G.A.Toombs, and F.W.Sheard: In Physics of Phonons ed. by T.Paskiewicz, Springer Lect. Notes in Phys., Vol 285, ( Springer, Berlin 1987 ), 348Google Scholar
- see, e.g., “Acoustic Surface Waves” (Topics of Appl. Physics) Vol.24 ed. A. A. Oliner, ( Springer, Berlin 1978 )Google Scholar
- R. Adler: IEEE Trans. on Sonics and Ultrasonics SU-18 115 (1971)Google Scholar
- G. Weimann: In Festkörperprobleme (Advances in Solid State Physics) Vol.26, ed. P.Grosse ( Vieweg, Braunschweig 1986 ), 231Google Scholar
- D. Weiss, K. v. Klitzing, and V. Mosser: In “Two Dimensional Systems: Physics and New Devices” eds. G.Bauer, F.Kuchar, and H.Heinrich ( Springer, Berlin 1986 ), 204Google Scholar
- R. Lassnig and E. Gornik: In “Two Dimensional Systems: Physics and New Devices” eds. G.Bauer, F.Kuchar, and H.Heinrich ( Springer, Berlin 1986 ), 218Google Scholar