Fractional quantum Hall effect in a dilute magnetic semiconductor

Autores
Betthausen, C.; Giudici, Paula; Iankilevitch, A.; Preis, C.; Kolkovsky, V.; Wiater, M.; Karczewski, G.; Piot, B. A.; Kunc, J.; Potemski, M.; Wojtowicz, T.; Weiss, D.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report the observation of the fractional quantum Hall effect in the lowest Landau level of a two-dimensional electron system (2DES), residing in the diluted magnetic semiconductor Cd1−xMnxTe. The presence of magnetic impurities results in a giant Zeeman splitting leading to an unusual ordering of composite fermion Landau levels. In experiment, this results in an unconventional opening and closing of fractional gaps around the filling factor ν=3/2 as a function of an in-plane magnetic field, i.e., of the Zeeman energy. By including the s-d exchange energy into the composite Landau level spectrum the opening and closing of the gap at filling factor 5/3 can be modeled quantitatively. The widely tunable spin-splitting in a diluted magnetic 2DES provides a means to manipulate fractional states.
Fil: Betthausen, C.. Universitat Regensburg; Alemania
Fil: Giudici, Paula. Universitat Regensburg; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Iankilevitch, A.. Universitat Regensburg; Alemania
Fil: Preis, C.. Universitat Regensburg; Alemania
Fil: Kolkovsky, V.. Polish Academy of Sciences; Argentina
Fil: Wiater, M.. Polish Academy of Sciences; Argentina
Fil: Karczewski, G.. Polish Academy of Sciences; Argentina
Fil: Piot, B. A.. Institut National des Sciences Appliquées; Francia. Universite Joseph Fourier; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Kunc, J.. Centre National de la Recherche Scientifique; Francia. Institut National des Sciences Appliquées; Francia. Universite Joseph Fourier; Francia
Fil: Potemski, M.. Institut National des Sciences Appliquées; Francia. Centre National de la Recherche Scientifique; Francia. Universite Joseph Fourier; Francia
Fil: Wojtowicz, T.. Polish Academy of Sciences; Argentina
Fil: Weiss, D.. Universitat Regensburg; Alemania
Materia
FQHE
MAGNETIC MATERIALS
2D ELECTRO GASES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/35949
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/35949
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Fractional quantum Hall effect in a dilute magnetic semiconductorBetthausen, C.Giudici, PaulaIankilevitch, A.Preis, C.Kolkovsky, V.Wiater, M.Karczewski, G.Piot, B. A.Kunc, J.Potemski, M.Wojtowicz, T.Weiss, D.FQHEMAGNETIC MATERIALS2D ELECTRO GASEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report the observation of the fractional quantum Hall effect in the lowest Landau level of a two-dimensional electron system (2DES), residing in the diluted magnetic semiconductor Cd1−xMnxTe. The presence of magnetic impurities results in a giant Zeeman splitting leading to an unusual ordering of composite fermion Landau levels. In experiment, this results in an unconventional opening and closing of fractional gaps around the filling factor ν=3/2 as a function of an in-plane magnetic field, i.e., of the Zeeman energy. By including the s-d exchange energy into the composite Landau level spectrum the opening and closing of the gap at filling factor 5/3 can be modeled quantitatively. The widely tunable spin-splitting in a diluted magnetic 2DES provides a means to manipulate fractional states.Fil: Betthausen, C.. Universitat Regensburg; AlemaniaFil: Giudici, Paula. Universitat Regensburg; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Iankilevitch, A.. Universitat Regensburg; AlemaniaFil: Preis, C.. Universitat Regensburg; AlemaniaFil: Kolkovsky, V.. Polish Academy of Sciences; ArgentinaFil: Wiater, M.. Polish Academy of Sciences; ArgentinaFil: Karczewski, G.. Polish Academy of Sciences; ArgentinaFil: Piot, B. A.. Institut National des Sciences Appliquées; Francia. Universite Joseph Fourier; Francia. Centre National de la Recherche Scientifique; FranciaFil: Kunc, J.. Centre National de la Recherche Scientifique; Francia. Institut National des Sciences Appliquées; Francia. Universite Joseph Fourier; FranciaFil: Potemski, M.. Institut National des Sciences Appliquées; Francia. Centre National de la Recherche Scientifique; Francia. Universite Joseph Fourier; FranciaFil: Wojtowicz, T.. Polish Academy of Sciences; ArgentinaFil: Weiss, D.. Universitat Regensburg; AlemaniaAmerican Physical Society2014-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/35949Betthausen, C.; Giudici, Paula; Iankilevitch, A.; Preis, C.; Kolkovsky, V.; et al.; Fractional quantum Hall effect in a dilute magnetic semiconductor; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 90; 11; 9-2014; 115302-1153051098-01212469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.90.115302info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1407.5006info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.115302info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:10:03Zoai:ri.conicet.gov.ar:11336/35949instacron: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:34982025-10-22 12:10:03.467CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Fractional quantum Hall effect in a dilute magnetic semiconductor
title Fractional quantum Hall effect in a dilute magnetic semiconductor
spellingShingle Fractional quantum Hall effect in a dilute magnetic semiconductor
Betthausen, C.
FQHE
MAGNETIC MATERIALS
2D ELECTRO GASES
title_short Fractional quantum Hall effect in a dilute magnetic semiconductor
title_full Fractional quantum Hall effect in a dilute magnetic semiconductor
title_fullStr Fractional quantum Hall effect in a dilute magnetic semiconductor
title_full_unstemmed Fractional quantum Hall effect in a dilute magnetic semiconductor
title_sort Fractional quantum Hall effect in a dilute magnetic semiconductor
dc.creator.none.fl_str_mv Betthausen, C.
Giudici, Paula
Iankilevitch, A.
Preis, C.
Kolkovsky, V.
Wiater, M.
Karczewski, G.
Piot, B. A.
Kunc, J.
Potemski, M.
Wojtowicz, T.
Weiss, D.
author Betthausen, C.
author_facet Betthausen, C.
Giudici, Paula
Iankilevitch, A.
Preis, C.
Kolkovsky, V.
Wiater, M.
Karczewski, G.
Piot, B. A.
Kunc, J.
Potemski, M.
Wojtowicz, T.
Weiss, D.
author_role author
author2 Giudici, Paula
Iankilevitch, A.
Preis, C.
Kolkovsky, V.
Wiater, M.
Karczewski, G.
Piot, B. A.
Kunc, J.
Potemski, M.
Wojtowicz, T.
Weiss, D.
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv FQHE
MAGNETIC MATERIALS
2D ELECTRO GASES
topic FQHE
MAGNETIC MATERIALS
2D ELECTRO GASES
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 the observation of the fractional quantum Hall effect in the lowest Landau level of a two-dimensional electron system (2DES), residing in the diluted magnetic semiconductor Cd1−xMnxTe. The presence of magnetic impurities results in a giant Zeeman splitting leading to an unusual ordering of composite fermion Landau levels. In experiment, this results in an unconventional opening and closing of fractional gaps around the filling factor ν=3/2 as a function of an in-plane magnetic field, i.e., of the Zeeman energy. By including the s-d exchange energy into the composite Landau level spectrum the opening and closing of the gap at filling factor 5/3 can be modeled quantitatively. The widely tunable spin-splitting in a diluted magnetic 2DES provides a means to manipulate fractional states.
Fil: Betthausen, C.. Universitat Regensburg; Alemania
Fil: Giudici, Paula. Universitat Regensburg; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Iankilevitch, A.. Universitat Regensburg; Alemania
Fil: Preis, C.. Universitat Regensburg; Alemania
Fil: Kolkovsky, V.. Polish Academy of Sciences; Argentina
Fil: Wiater, M.. Polish Academy of Sciences; Argentina
Fil: Karczewski, G.. Polish Academy of Sciences; Argentina
Fil: Piot, B. A.. Institut National des Sciences Appliquées; Francia. Universite Joseph Fourier; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Kunc, J.. Centre National de la Recherche Scientifique; Francia. Institut National des Sciences Appliquées; Francia. Universite Joseph Fourier; Francia
Fil: Potemski, M.. Institut National des Sciences Appliquées; Francia. Centre National de la Recherche Scientifique; Francia. Universite Joseph Fourier; Francia
Fil: Wojtowicz, T.. Polish Academy of Sciences; Argentina
Fil: Weiss, D.. Universitat Regensburg; Alemania
description We report the observation of the fractional quantum Hall effect in the lowest Landau level of a two-dimensional electron system (2DES), residing in the diluted magnetic semiconductor Cd1−xMnxTe. The presence of magnetic impurities results in a giant Zeeman splitting leading to an unusual ordering of composite fermion Landau levels. In experiment, this results in an unconventional opening and closing of fractional gaps around the filling factor ν=3/2 as a function of an in-plane magnetic field, i.e., of the Zeeman energy. By including the s-d exchange energy into the composite Landau level spectrum the opening and closing of the gap at filling factor 5/3 can be modeled quantitatively. The widely tunable spin-splitting in a diluted magnetic 2DES provides a means to manipulate fractional states.
publishDate 2014
dc.date.none.fl_str_mv 2014-09
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/11336/35949
Betthausen, C.; Giudici, Paula; Iankilevitch, A.; Preis, C.; Kolkovsky, V.; et al.; Fractional quantum Hall effect in a dilute magnetic semiconductor; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 90; 11; 9-2014; 115302-115305
1098-0121
2469-9969
CONICET Digital
CONICET
url http://hdl.handle.net/11336/35949
identifier_str_mv Betthausen, C.; Giudici, Paula; Iankilevitch, A.; Preis, C.; Kolkovsky, V.; et al.; Fractional quantum Hall effect in a dilute magnetic semiconductor; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 90; 11; 9-2014; 115302-115305
1098-0121
2469-9969
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.90.115302
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1407.5006
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.115302
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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_ 1846782483304022016
score 12.982451

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