| Issue |
EPL
Volume 94, Number 5, June 2011
|
|
|---|---|---|
| Article Number | 57005 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/94/57005 | |
| Published online | 24 May 2011 | |
Tunability of Raman spectral signatures by Rashba spin-orbit interaction in few-electron quantum dots
1
Department of Physics and Astronomy, University of Manitoba - Winnipeg, Canada R3T 2N2
2
Department of Solid State Physics, Yerevan State University - Yerevan, Armenia
Received:
25
February
2011
Accepted:
21
April
2011
The resonant inelastic light scattering from a GaAs quantum dot containing a few electrons is investigated theoretically in the presence of Rashba spin-orbit coupling. We show that the spin-orbit interaction results in additional Raman transitions in the dot, whose amplitudes can be controlled externally by varying the spin-orbit coupling parameter. This novel effect can be used to tune Raman transitions in quantum dots. Alternatively, Raman spectroscopy can be used to observe how Rashba spin-orbit coupling manifests in few-electron quantum dots.
PACS: 73.21.La – Quantum dots / 71.70.Ej – Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect / 78.30.Fs – III-V and II-VI semiconductors
© EPLA, 2011
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