Moench, Erwin and Euringer, P. and Huettner, G-M and Dmitriev, I. A. and Schuh, D. and Marocko, M. and Eroms, J. and Bougeard, Dominique and Weiss, Dieter and Ganichev, Sergey D. (2022) Circular polarization immunity of the cyclotron resonance photoconductivity in two-dimensional electron systems. PHYSICAL REVIEW B, 106 (16): L161409. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
Studying the cyclotron resonance (CR) induced photoconductivity in GaAs and HgTe two-dimensional electron structures under circularly polarized terahertz illumination, we observed an anomalous resonant photoresponse for the CR inactive helicity of almost the same magnitude as for the CR active helicity. This observation conflicts with simultaneous transmission measurements and fundamentally contradicts the conventional theory of CR. We provide a possible route to explain such a basic failure of the conventional description of light-matter interaction and discuss a modified electron dynamics near strong impurities that may provide a local near-field coupling of the two helicity modes. This should result in a CR enhanced absorption for both magnetic field polarities.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Nov 2023 07:47 |
| Last Modified: | 14 Nov 2023 07:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/56635 |
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