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...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autor principal: Tamborenea, Pablo Ignacio
Publicado: 2015
Materias:
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
Aporte de:
id paper:paper_17426588_v647_n1_p_Ungar
record_format dspace
spelling 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