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
Autores principales:	Ungar, F., Cygorek, M., Tamborenea, P.I., Axt, V.M., Mateos J., Gonzalez T., Martin-Martinez M.J., Gobierno de Espana, Ministerio de Economia y Competitividad; Oxford Instruments; Rohde and Schwarz; Universidad de Salamanca, Campus of International Excellence
Formato:	CONF
Materias:	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
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_17426588_v647_n1_p_Ungar
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_17426588_v647_n1_p_Ungar
record_format	dspace
spelling	todo:paper_17426588_v647_n1_p_Ungar2023-10-03T16:31:11Z Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells Ungar, F. Cygorek, M. Tamborenea, P.I. Axt, V.M. Mateos J. Gonzalez T. Martin-Martinez M.J. Gobierno de Espana, Ministerio de Economia y Competitividad; Oxford Instruments; Rohde and Schwarz; Universidad de Salamanca, Campus of International Excellence 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. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Ungar, F. Cygorek, M. Tamborenea, P.I. Axt, V.M. Mateos J. Gonzalez T. Martin-Martinez M.J. Gobierno de Espana, Ministerio de Economia y Competitividad; Oxford Instruments; Rohde and Schwarz; Universidad de Salamanca, Campus of International Excellence 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.
format	CONF
author	Ungar, F. Cygorek, M. Tamborenea, P.I. Axt, V.M. Mateos J. Gonzalez T. Martin-Martinez M.J. Gobierno de Espana, Ministerio de Economia y Competitividad; Oxford Instruments; Rohde and Schwarz; Universidad de Salamanca, Campus of International Excellence
author_facet	Ungar, F. Cygorek, M. Tamborenea, P.I. Axt, V.M. Mateos J. Gonzalez T. Martin-Martinez M.J. Gobierno de Espana, Ministerio de Economia y Competitividad; Oxford Instruments; Rohde and Schwarz; Universidad de Salamanca, Campus of International Excellence
author_sort	Ungar, F.
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
url	http://hdl.handle.net/20.500.12110/paper_17426588_v647_n1_p_Ungar
work_keys_str_mv	AT ungarf relaxationandcoherentoscillationsinthespindynamicsofiividilutedmagneticquantumwells AT cygorekm relaxationandcoherentoscillationsinthespindynamicsofiividilutedmagneticquantumwells AT tamboreneapi relaxationandcoherentoscillationsinthespindynamicsofiividilutedmagneticquantumwells AT axtvm relaxationandcoherentoscillationsinthespindynamicsofiividilutedmagneticquantumwells AT mateosj relaxationandcoherentoscillationsinthespindynamicsofiividilutedmagneticquantumwells AT gonzalezt relaxationandcoherentoscillationsinthespindynamicsofiividilutedmagneticquantumwells AT martinmartinezmj relaxationandcoherentoscillationsinthespindynamicsofiividilutedmagneticquantumwells AT gobiernodeespanaministeriodeeconomiaycompetitividadoxfordinstrumentsrohdeandschwarzuniversidaddesalamancacampusofinternationalexcellence relaxationandcoherentoscillationsinthespindynamicsofiividilutedmagneticquantumwells
_version_	1782025182643224576

Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells

Ejemplares similares