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dc.contributor.author
Ungar, Florian
dc.contributor.author
Cygorek, Moritz
dc.contributor.author
Tamborenea, Pablo Ignacio
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dc.contributor.author
Axt, Vollrath Martin
dc.date.available
2018-05-04T18:40:23Z
dc.date.issued
2015-05
dc.identifier.citation
Ungar, Florian; Cygorek, Moritz; Tamborenea, Pablo Ignacio; Axt, Vollrath Martin; Ultrafast spin dynamics in II-VI diluted magnetic semiconductors with spin-orbit interaction; American Physical Society; Physical Review B; 91; 19; 5-2015; 1-8; 195201
dc.identifier.uri
http://hdl.handle.net/11336/44196
dc.description.abstract
We study theoretically the ultrafast spin dynamics of II-VI diluted magnetic semiconductors in the presence of spin-orbit interaction. Our goal is to explore the interplay or competition between the exchange sd coupling and the spin-orbit interaction in both bulk and quantum-well systems. For bulk materials we concentrate on Zn 1 − x Mn x Se and take into account the Dresselhaus interaction, while for quantum wells we examine Hg 1 − x − y Mn x Cd y Te systems with a strong Rashba coupling. Our calculations were performed with a recently developed formalism which incorporates electronic correlations beyond mean-field theory originating from the exchange sd coupling. For both bulk and quasi-two-dimensional systems we find that, by varying the system parameters within realistic ranges, either of the two interactions can be chosen to play a dominant role or they can compete on an equal footing with each other. The most notable effect of the spin-orbit interaction in both types of system is the appearance of strong oscillations where the exchange sd coupling by itself causes only an exponential decay of the mean electronic spin components. The mean-field approximation is also studied and an analytical interpretation is given as to why it shows a strong suppression of the spin-orbit-induced dephasing of the spin component parallel to the Mn magnetic field.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Diluted Magnetic Semiconductors
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Spin-Orbit Interaction
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Ultrafast Dynamics
dc.subject.classification
Astronomía
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Ultrafast spin dynamics in II-VI diluted magnetic semiconductors with spin-orbit interaction
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-27T18:50:59Z
dc.identifier.eissn
2469-9969
dc.journal.volume
91
dc.journal.number
19
dc.journal.pagination
1-8; 195201
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Ungar, Florian. University of Bayreuth; Alemania
dc.description.fil
Fil: Cygorek, Moritz. University of Bayreuth; Alemania
dc.description.fil
Fil: Tamborenea, Pablo Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Axt, Vollrath Martin. University of Bayreuth; Alemania
dc.journal.title
Physical Review B
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.91.195201
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevB.91.195201
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1503.01937
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