Hirmer, M. and Hirmer, M. and Schuh, D. and Wegscheider, W. and Korn, T. and Winkler, R. and Schueller, Christian (2011) Fingerprints of the Anisotropic Spin-Split Hole Dispersion in Resonant Inelastic Light Scattering in Two-Dimensional Hole Systems. PHYSICAL REVIEW LETTERS, 107 (21): 216805. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
In resonant inelastic light scattering experiments on two-dimensional hole systems in GaAs-AlxGa1-xAs single quantum wells we find evidence for the strongly anisotropic spin-split hole dispersion at finite in-plane momenta. In all our samples we detect a low-energy spin-density excitation of a few meV, stemming from excitation of holes of the spin-split ground state. The detailed spectral shape of the excitation depends sensitively on the orientations of the linear light polarizations with respect to the in-plane crystal axes. In particular, we observe a doublet structure, which is most pronounced if the polarization of the incident light is parallel to the [110] in-plane direction. Theoretical calculations of the Raman spectra based on a multiband k . p approach confirm that the observed doublet structure is due to the anisotropic spin-split hole dispersion.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | INTERSUBBAND EXCITATIONS; RAMAN-SCATTERING; BAND; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 May 2020 12:46 |
| Last Modified: | 26 May 2020 12:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/19808 |
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