Mani, R. G. and Gerl, C. and Schmult, S. and Wegscheider, W. and Umansky, V. (2010) Nonlinear growth in the amplitude of radiation-induced magnetoresistance oscillations. PHYSICAL REVIEW B, 81 (12): 125320. ISSN 1098-0121,
Full text not available from this repository.Abstract
We report the observation of inverse magnetic field periodic, radiation-induced magnetoresistance oscillations in GaAs/AlGaAs heterostructures prepared in W. Wegscheider's group, compare their characteristics with similar oscillations in V. Umansky's material, and describe the lineshape variation vs the radiation power, P, in the two systems. We find that the radiation-induced oscillatory resistance, Delta R(xx), in both materials, can be described by Delta R(xx)=-A exp(-lambda/B)sin(2 pi F/B), where A is the amplitude, lambda is the damping parameter, and F is the oscillation frequency. Both lambda and F turn out to be insensitive to P. On the other hand, A grows nonlinearly with P.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ZERO-RESISTANCE STATES; ELECTROMAGNETIC-WAVE EXCITATION; 2D ELECTRONIC TRANSPORT; GAAS/ALGAAS HETEROSTRUCTURES; PHOTOEXCITATION; REGIME; |
| 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: | 06 Aug 2020 04:55 |
| Last Modified: | 06 Aug 2020 04:55 |
| URI: | https://pred.uni-regensburg.de/id/eprint/25122 |
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