Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells
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 qualitativ...
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v647_n1_p_Ungar http://hdl.handle.net/20.500.12110/paper_17426588_v647_n1_p_Ungar |
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paper:paper_17426588_v647_n1_p_Ungar2023-06-08T16:27:44Z Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells Tamborenea, Pablo Ignacio Dynamics Manganese Nanostructures Optoelectronic devices Semiconductor quantum wells Coherent oscillations Electronic correlation Electronic spins Excess energy Magnetic quantum wells Rashba spin-orbit coupling Spin orbit interactions Ultra-fast Spin dynamics 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 Hg1-x-yMnxCdyTe 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. Fil:Tamborenea, P.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v647_n1_p_Ungar http://hdl.handle.net/20.500.12110/paper_17426588_v647_n1_p_Ungar |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Dynamics Manganese Nanostructures Optoelectronic devices Semiconductor quantum wells Coherent oscillations Electronic correlation Electronic spins Excess energy Magnetic quantum wells Rashba spin-orbit coupling Spin orbit interactions Ultra-fast Spin dynamics |
spellingShingle |
Dynamics Manganese Nanostructures Optoelectronic devices Semiconductor quantum wells Coherent oscillations Electronic correlation Electronic spins Excess energy Magnetic quantum wells Rashba spin-orbit coupling Spin orbit interactions Ultra-fast Spin dynamics Tamborenea, Pablo Ignacio Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells |
topic_facet |
Dynamics Manganese Nanostructures Optoelectronic devices Semiconductor quantum wells Coherent oscillations Electronic correlation Electronic spins Excess energy Magnetic quantum wells Rashba spin-orbit coupling Spin orbit interactions Ultra-fast Spin dynamics |
description |
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 Hg1-x-yMnxCdyTe 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. |
author |
Tamborenea, Pablo Ignacio |
author_facet |
Tamborenea, Pablo Ignacio |
author_sort |
Tamborenea, Pablo Ignacio |
title |
Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells |
title_short |
Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells |
title_full |
Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells |
title_fullStr |
Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells |
title_full_unstemmed |
Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells |
title_sort |
relaxation and coherent oscillations in the spin dynamics of ii-vi diluted magnetic quantum wells |
publishDate |
2015 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v647_n1_p_Ungar http://hdl.handle.net/20.500.12110/paper_17426588_v647_n1_p_Ungar |
work_keys_str_mv |
AT tamboreneapabloignacio relaxationandcoherentoscillationsinthespindynamicsofiividilutedmagneticquantumwells |
_version_ |
1768543296570785792 |