Direct probing of band-structure Berry phase in diluted magnetic semiconductors

Autores
Granada, Mara; Lucot, D.; Giraud, R.; Lemaître, A.; Ulysse, C.; Waintal, X.; Faini, G.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report on experimental evidence of the Berry phase accumulated by the charge-carrier wave function in single-domain nanowires made from a (Ga, Mn)(As, P) diluted ferromagnetic semiconductor layer. Its signature on the mesoscopic transport measurements is revealed as unusual patterns in the magnetoconductance that are clearly distinguished from the universal conductance fluctuations. We show that these patterns appear in a magnetic field region where the magnetization rotates coherently and are related to a change in the band-structure Berry phase as the magnetization direction changes. They should thus be considered a band-structure Berry phase fingerprint of the effective magnetic monopoles in the momentum space. We argue that this is an efficient method to vary the band structure in a controlled way and to probe it directly. Hence, (Ga, Mn)As appears to be a very interesting test bench for new concepts based on this geometrical phase.
Fil: Granada, Mara. Centre National de la Recherche Scientifique; Francia. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Lucot, D.. Centre National de la Recherche Scientifique; Francia
Fil: Giraud, R.. Centre National de la Recherche Scientifique; Francia
Fil: Lemaître, A.. Centre National de la Recherche Scientifique; Francia
Fil: Ulysse, C.. Centre National de la Recherche Scientifique; Francia
Fil: Waintal, X.. No especifica;
Fil: Faini, G.. Centre National de la Recherche Scientifique; Francia
Materia
Berry Phase
Diluted Magnetic Semiconductors
Conductance Fluctuations
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/52084
Acceder
id CONICETDig_c84485ab22c3f77a95694da21d436ab2
oai_identifier_str oai:ri.conicet.gov.ar:11336/52084
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Direct probing of band-structure Berry phase in diluted magnetic semiconductorsGranada, MaraLucot, D.Giraud, R.Lemaître, A.Ulysse, C.Waintal, X.Faini, G.Berry PhaseDiluted Magnetic SemiconductorsConductance Fluctuationshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report on experimental evidence of the Berry phase accumulated by the charge-carrier wave function in single-domain nanowires made from a (Ga, Mn)(As, P) diluted ferromagnetic semiconductor layer. Its signature on the mesoscopic transport measurements is revealed as unusual patterns in the magnetoconductance that are clearly distinguished from the universal conductance fluctuations. We show that these patterns appear in a magnetic field region where the magnetization rotates coherently and are related to a change in the band-structure Berry phase as the magnetization direction changes. They should thus be considered a band-structure Berry phase fingerprint of the effective magnetic monopoles in the momentum space. We argue that this is an efficient method to vary the band structure in a controlled way and to probe it directly. Hence, (Ga, Mn)As appears to be a very interesting test bench for new concepts based on this geometrical phase.Fil: Granada, Mara. Centre National de la Recherche Scientifique; Francia. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Lucot, D.. Centre National de la Recherche Scientifique; FranciaFil: Giraud, R.. Centre National de la Recherche Scientifique; FranciaFil: Lemaître, A.. Centre National de la Recherche Scientifique; FranciaFil: Ulysse, C.. Centre National de la Recherche Scientifique; FranciaFil: Waintal, X.. No especifica;Fil: Faini, G.. Centre National de la Recherche Scientifique; FranciaAmerican Physical Society2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/52084Granada, Mara; Lucot, D.; Giraud, R.; Lemaître, A.; Ulysse, C.; et al.; Direct probing of band-structure Berry phase in diluted magnetic semiconductors; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 91; 23; 6-2015; 1-6; 2352031098-0121CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.91.235203info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.91.235203info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:11:11Zoai:ri.conicet.gov.ar:11336/52084instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:11:12.152CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Direct probing of band-structure Berry phase in diluted magnetic semiconductors
title Direct probing of band-structure Berry phase in diluted magnetic semiconductors
spellingShingle Direct probing of band-structure Berry phase in diluted magnetic semiconductors
Granada, Mara
Berry Phase
Diluted Magnetic Semiconductors
Conductance Fluctuations
title_short Direct probing of band-structure Berry phase in diluted magnetic semiconductors
title_full Direct probing of band-structure Berry phase in diluted magnetic semiconductors
title_fullStr Direct probing of band-structure Berry phase in diluted magnetic semiconductors
title_full_unstemmed Direct probing of band-structure Berry phase in diluted magnetic semiconductors
title_sort Direct probing of band-structure Berry phase in diluted magnetic semiconductors
dc.creator.none.fl_str_mv Granada, Mara
Lucot, D.
Giraud, R.
Lemaître, A.
Ulysse, C.
Waintal, X.
Faini, G.
author Granada, Mara
author_facet Granada, Mara
Lucot, D.
Giraud, R.
Lemaître, A.
Ulysse, C.
Waintal, X.
Faini, G.
author_role author
author2 Lucot, D.
Giraud, R.
Lemaître, A.
Ulysse, C.
Waintal, X.
Faini, G.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Berry Phase
Diluted Magnetic Semiconductors
Conductance Fluctuations
topic Berry Phase
Diluted Magnetic Semiconductors
Conductance Fluctuations
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report on experimental evidence of the Berry phase accumulated by the charge-carrier wave function in single-domain nanowires made from a (Ga, Mn)(As, P) diluted ferromagnetic semiconductor layer. Its signature on the mesoscopic transport measurements is revealed as unusual patterns in the magnetoconductance that are clearly distinguished from the universal conductance fluctuations. We show that these patterns appear in a magnetic field region where the magnetization rotates coherently and are related to a change in the band-structure Berry phase as the magnetization direction changes. They should thus be considered a band-structure Berry phase fingerprint of the effective magnetic monopoles in the momentum space. We argue that this is an efficient method to vary the band structure in a controlled way and to probe it directly. Hence, (Ga, Mn)As appears to be a very interesting test bench for new concepts based on this geometrical phase.
Fil: Granada, Mara. Centre National de la Recherche Scientifique; Francia. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Lucot, D.. Centre National de la Recherche Scientifique; Francia
Fil: Giraud, R.. Centre National de la Recherche Scientifique; Francia
Fil: Lemaître, A.. Centre National de la Recherche Scientifique; Francia
Fil: Ulysse, C.. Centre National de la Recherche Scientifique; Francia
Fil: Waintal, X.. No especifica;
Fil: Faini, G.. Centre National de la Recherche Scientifique; Francia
description We report on experimental evidence of the Berry phase accumulated by the charge-carrier wave function in single-domain nanowires made from a (Ga, Mn)(As, P) diluted ferromagnetic semiconductor layer. Its signature on the mesoscopic transport measurements is revealed as unusual patterns in the magnetoconductance that are clearly distinguished from the universal conductance fluctuations. We show that these patterns appear in a magnetic field region where the magnetization rotates coherently and are related to a change in the band-structure Berry phase as the magnetization direction changes. They should thus be considered a band-structure Berry phase fingerprint of the effective magnetic monopoles in the momentum space. We argue that this is an efficient method to vary the band structure in a controlled way and to probe it directly. Hence, (Ga, Mn)As appears to be a very interesting test bench for new concepts based on this geometrical phase.
publishDate 2015
dc.date.none.fl_str_mv 2015-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/52084
Granada, Mara; Lucot, D.; Giraud, R.; Lemaître, A.; Ulysse, C.; et al.; Direct probing of band-structure Berry phase in diluted magnetic semiconductors; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 91; 23; 6-2015; 1-6; 235203
1098-0121
CONICET Digital
CONICET
url http://hdl.handle.net/11336/52084
identifier_str_mv Granada, Mara; Lucot, D.; Giraud, R.; Lemaître, A.; Ulysse, C.; et al.; Direct probing of band-structure Berry phase in diluted magnetic semiconductors; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 91; 23; 6-2015; 1-6; 235203
1098-0121
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.91.235203
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.91.235203
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844614008577982464
score 13.070432

Publicaciones similares