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
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/35949
Ver los metadatos del registro completo
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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 |
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article |
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publishedVersion |
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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 |
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eng |
| language |
eng |
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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 |
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openAccess |
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https://creativecommons.org/licenses/by/2.5/ar/ |
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application/pdf application/pdf application/pdf |
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American Physical Society |
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American Physical Society |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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