Kukushkin, I. V. and Smet, J. H. and Hoppel, L. and Waizmann, U. and Riek, M. and Wegscheider, Werner and von Klitzing, K. (2004) Ultrahigh-frequency surface acoustic waves for finite wave-vector spectroscopy of two-dimensional electrons. APPLIED PHYSICS LETTERS, 85 (19). pp. 4526-4528. ISSN 0003-6951, 1077-3118
Full text not available from this repository. (Request a copy)Abstract
Ultrahigh-frequency (up to 24 GHz) surface acoustic waves were excited with short-period interdigital transducers and detected in GaAs/AlGaAs quantum wells with an optical scheme. We demonstrate that the transducers can be driven in a contactless fashion. Sets of two transducers permitted the coherent emission of surface acoustic waves and the creation of standing waves due to interference. The methods described offer bright prospects for finite wave-vector spectroscopy of two-dimensional electrons in a noninvasive way up to wave numbers of 10(6) cm(-1). (C) 2004 American Institute of Physics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GAAS/ALGAAS QUANTUM-WELLS; FILLED LANDAU-LEVEL; CYCLOTRON-RESONANCE; GAS; OSCILLATIONS; EXCITATIONS; DISPERSION; PLASMON; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Jun 2021 05:11 |
| Last Modified: | 23 Jun 2021 05:11 |
| URI: | https://pred.uni-regensburg.de/id/eprint/36972 |
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