Diehl, H. and Shalygin, V. A. and Danilov, S. N. and Tarasenko, S. A. and Bel'kov, V. V. and Schuh, D. and Wegscheider, W. and Prettl, W. and Ganichev, S. D. (2007) Magneto-gyrotropic photogalvanic effects due to inter-subband absorption in quantum wells. JOURNAL OF PHYSICS-CONDENSED MATTER, 19 (43): 436232. ISSN 0953-8984,
Full text not available from this repository. (Request a copy)Abstract
We report on the observation of the magneto-photogalvanic effect (MPGE) due to inter-subband transitions in (001)-oriented GaAs quantum wells. This effect is related to the gyrotropic properties of the structures. It is shown that inter-subband absorption of linearly polarized radiation may lead to spin-related as well as spin-independent photocurrents if an external magnetic field is applied in the plane of the quantum well. The experimental results are analysed in terms of the phenomenological theory and microscopic models of MPGE based on either asymmetric optical excitation or asymmetric relaxation of carriers in k-space. We observed resonant photocurrents not only at oblique incidence of radiation but also at normal incidence, demonstrating that conventionally applied selection rules for the inter-subband optical transitions are not rigorous.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DIMENSIONAL SYSTEMS; OPTICAL ORIENTATION; ELECTRON-GAS; PHOTON-DRAG; SPIN; FIELD; SEMICONDUCTOR; PARALLEL; CURRENTS; LAYER; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 01 Dec 2020 12:49 |
| Last Modified: | 01 Dec 2020 12:49 |
| URI: | https://pred.uni-regensburg.de/id/eprint/32060 |
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