Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach

Autores
Escudero, Federico Nahuel; Ardenghi, Juan Sebastian; Jasen, Paula Verónica
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyze the magnetic oscillations (MO) due to the de Haas–van Alphen effect, in pristine graphene under a perpendicular magnetic field, taking into account the Zeeman effect. We consider a constant Fermi energy, such that the valence band is always full and only the conduction band is available. At zero temperature the MO consist of two sawtooth peaks, one for each spin. Both peaks have the same frequency, but different amplitude and phase. We show that, in order to observe the spin splitting in the MO, Fermi energy of about 0.1 eV is required. At low temperatures we obtain that the MO can be expressed as the MO at zero temperature, plus small Fermi–Dirac like functions, each centered around the MO peaks. Using this expression, we show that the spin splitting is observable in the MO only when the thermal energy is smaller than the Zeeman energy. We also analyze the shift of the MO extrema as the temperature increases. We show that it depends on the magnetic field, which implies a broken periodicity at nonzero temperature. Finally, we obtain an analytical expression for the MO envelope. The results obtained could be used to infer temperature changes from the MO extrema shift and vice versa.
Fil: Escudero, Federico Nahuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Ardenghi, Juan Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Jasen, Paula Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Materia
GRAPHENE
MAGNETIC OSCILLATIONS
SPIN SPLITTING
TEMPERATURE
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:11336/91740
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approachEscudero, Federico NahuelArdenghi, Juan SebastianJasen, Paula VerónicaGRAPHENEMAGNETIC OSCILLATIONSSPIN SPLITTINGTEMPERATUREhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyze the magnetic oscillations (MO) due to the de Haas–van Alphen effect, in pristine graphene under a perpendicular magnetic field, taking into account the Zeeman effect. We consider a constant Fermi energy, such that the valence band is always full and only the conduction band is available. At zero temperature the MO consist of two sawtooth peaks, one for each spin. Both peaks have the same frequency, but different amplitude and phase. We show that, in order to observe the spin splitting in the MO, Fermi energy of about 0.1 eV is required. At low temperatures we obtain that the MO can be expressed as the MO at zero temperature, plus small Fermi–Dirac like functions, each centered around the MO peaks. Using this expression, we show that the spin splitting is observable in the MO only when the thermal energy is smaller than the Zeeman energy. We also analyze the shift of the MO extrema as the temperature increases. We show that it depends on the magnetic field, which implies a broken periodicity at nonzero temperature. Finally, we obtain an analytical expression for the MO envelope. The results obtained could be used to infer temperature changes from the MO extrema shift and vice versa.Fil: Escudero, Federico Nahuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Ardenghi, Juan Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Jasen, Paula Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaIOP Publishing2018-06-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/91740Escudero, Federico Nahuel; Ardenghi, Juan Sebastian; Jasen, Paula Verónica; Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach; IOP Publishing; Journal of Physics: Condensed Matter; 30; 27; 13-6-2018; 1-220953-8984CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://stacks.iop.org/0953-8984/30/i=27/a=275803?key=crossref.b8a97ac661327311f28e9d887d27fc72info:eu-repo/semantics/altIdentifier/doi/10.1088/1361-648X/aac7eainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:59:15Zoai:ri.conicet.gov.ar:11336/91740instacron: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 11:59:15.566CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach
title Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach
spellingShingle Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach
Escudero, Federico Nahuel
GRAPHENE
MAGNETIC OSCILLATIONS
SPIN SPLITTING
TEMPERATURE
title_short Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach
title_full Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach
title_fullStr Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach
title_full_unstemmed Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach
title_sort Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach
dc.creator.none.fl_str_mv Escudero, Federico Nahuel
Ardenghi, Juan Sebastian
Jasen, Paula Verónica
author Escudero, Federico Nahuel
author_facet Escudero, Federico Nahuel
Ardenghi, Juan Sebastian
Jasen, Paula Verónica
author_role author
author2 Ardenghi, Juan Sebastian
Jasen, Paula Verónica
author2_role author
author
dc.subject.none.fl_str_mv GRAPHENE
MAGNETIC OSCILLATIONS
SPIN SPLITTING
TEMPERATURE
topic GRAPHENE
MAGNETIC OSCILLATIONS
SPIN SPLITTING
TEMPERATURE
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 analyze the magnetic oscillations (MO) due to the de Haas–van Alphen effect, in pristine graphene under a perpendicular magnetic field, taking into account the Zeeman effect. We consider a constant Fermi energy, such that the valence band is always full and only the conduction band is available. At zero temperature the MO consist of two sawtooth peaks, one for each spin. Both peaks have the same frequency, but different amplitude and phase. We show that, in order to observe the spin splitting in the MO, Fermi energy of about 0.1 eV is required. At low temperatures we obtain that the MO can be expressed as the MO at zero temperature, plus small Fermi–Dirac like functions, each centered around the MO peaks. Using this expression, we show that the spin splitting is observable in the MO only when the thermal energy is smaller than the Zeeman energy. We also analyze the shift of the MO extrema as the temperature increases. We show that it depends on the magnetic field, which implies a broken periodicity at nonzero temperature. Finally, we obtain an analytical expression for the MO envelope. The results obtained could be used to infer temperature changes from the MO extrema shift and vice versa.
Fil: Escudero, Federico Nahuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Ardenghi, Juan Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Jasen, Paula Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
description We analyze the magnetic oscillations (MO) due to the de Haas–van Alphen effect, in pristine graphene under a perpendicular magnetic field, taking into account the Zeeman effect. We consider a constant Fermi energy, such that the valence band is always full and only the conduction band is available. At zero temperature the MO consist of two sawtooth peaks, one for each spin. Both peaks have the same frequency, but different amplitude and phase. We show that, in order to observe the spin splitting in the MO, Fermi energy of about 0.1 eV is required. At low temperatures we obtain that the MO can be expressed as the MO at zero temperature, plus small Fermi–Dirac like functions, each centered around the MO peaks. Using this expression, we show that the spin splitting is observable in the MO only when the thermal energy is smaller than the Zeeman energy. We also analyze the shift of the MO extrema as the temperature increases. We show that it depends on the magnetic field, which implies a broken periodicity at nonzero temperature. Finally, we obtain an analytical expression for the MO envelope. The results obtained could be used to infer temperature changes from the MO extrema shift and vice versa.
publishDate 2018
dc.date.none.fl_str_mv 2018-06-13
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/11336/91740
Escudero, Federico Nahuel; Ardenghi, Juan Sebastian; Jasen, Paula Verónica; Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach; IOP Publishing; Journal of Physics: Condensed Matter; 30; 27; 13-6-2018; 1-22
0953-8984
CONICET Digital
CONICET
url http://hdl.handle.net/11336/91740
identifier_str_mv Escudero, Federico Nahuel; Ardenghi, Juan Sebastian; Jasen, Paula Verónica; Influence of temperature on the magnetic oscillations in graphene with spin splitting: A new approach; IOP Publishing; Journal of Physics: Condensed Matter; 30; 27; 13-6-2018; 1-22
0953-8984
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://stacks.iop.org/0953-8984/30/i=27/a=275803?key=crossref.b8a97ac661327311f28e9d887d27fc72
info:eu-repo/semantics/altIdentifier/doi/10.1088/1361-648X/aac7ea
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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
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score 12.982451

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