Kotelnikov, I. N. and Shulman, A. Y. and Ganichev, S. D. and Varvanin, N. A. and Mayerhofer, B. and Prettl, Wilhelm (1996) Heating of two-dimensional electron gas and LO phonons in delta-doped GaAs by far-infrared radiation. SOLID STATE COMMUNICATIONS, 97 (10). pp. 827-832. ISSN 0038-1098, 1879-2766
Full text not available from this repository.Abstract
A change in the conductivity of the two-dimensional electron gas in delta-doped GaAs samples due to pulsed far-infrared laser irradiation has been detected. It is shown that the observed positive photoconductivity is caused by heating of 2D electrons. The energy loss of hot electrons is accomplished by scattering with nonequilibrium longitudinal optical (LO) phonons. An expression for the effective emission frequency of LO phonons coupled with electrons and the thermal bath of acoustic phonons is derived and the dependence of the emission frequency on the lattice temperature is experimentally obtained in the range 77-300 K.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HOT-ELECTRONS; QUANTUM WELLS; quantum wells; semiconductors; electron-phonon interaction; phonons; light absorption and reflection |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Wilhelm Prettl |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 07 Nov 2023 10:36 |
| Last Modified: | 07 Nov 2023 10:36 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51909 |
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