Kukushkin, I. V. and Smet, J. H. and Schuh, D. and Wegscheider, W. and von Klitzing, K. (2007) Dispersion of the composite-fermion cyclotron-resonance mode. PHYSICAL REVIEW LETTERS, 98 (6): 066403. ISSN 0031-9007,
Full text not available from this repository.Abstract
The dispersion of the composite-fermion cyclotron-resonance mode is measured with an optical detection scheme under the combined excitation of microwave radiation and a surface acoustic wave from an interdigital transducer. The slowly traveling surface wave defines the transferred wave vector. Momenta up to 10(8) m(-1) are accessible. The cyclotron-resonance mode exhibits strong negative dispersion, which suggests predominant short range residual interaction among composite fermions. From an extrapolation, the cyclotron mass at k=0 is obtained and investigated as a function of electron density.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FILLED LANDAU-LEVEL; ELECTRON-GAS; EXCITATIONS; SURFACE; |
| 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: | 22 Dec 2020 10:19 |
| Last Modified: | 22 Dec 2020 10:19 |
| URI: | https://pred.uni-regensburg.de/id/eprint/33186 |
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