on the publication serverTitle data
Ungar, Florian ; Cygorek, Moritz ; Tamborenea, P. I. ; Axt, Vollrath M.:
Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells.
In: Journal of Physics: Conference Series.
Vol. 647
(2015)
Issue 1
.
- Art.Nr. 012010, 4 S..
ISSN 1742-6596
DOI: https://doi.org/10.1088/1742-6596/647/1/012010
Project information
| Project financing: |
Deutsche Forschungsgemeinschaft Supported by the Universidad de Buenos Aires (UBACyT 2011-2014 No. 20020100100741), and CONICET (PIP 11220110100091). |
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Abstract in another language
We study theoretically the ultrafast spin dynamics of II-VI diluted magnetic quantum wells in the presence of spin-orbit interaction. We extend a recent study where it was shown that the spin-orbit interaction and the exchange sd coupling in bulk and quantum wells can compete resulting in qualitatively new dynamics when they act simultaneously. We concentrate on Hg 1- x-y Mn x Cd y Te quantum wells, which have a highly tunable Rashba spin-orbit coupling. Our calculations use a recently developed formalism which incorporates electronic correlations originating from the exchange sd -coupling. We find that the dependence of electronic spin oscillations on the excess energy changes qualitatively depending on whether or not the spin-orbit interaction dominates or is of comparable strength with the sd interaction.
