Ordinary Hall anomaly due to the Fermi surface shape in MnAs

Autores
Helman, Christian; Llois, Ana Maria; Tortarolo, Marina del Carmen
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyze the influence of the Fermi surface (FS) shape on magnetotransport properties, particularly on the Hall effect in the MnAs compound. Evidence of opposite conduction polarities for different crystal directions (goniopolarity) and a strong dependence of carrier type has been observed in MnAs films with an applied magnetic field. To understand this behavior, we developed a semiclassical model together with the Boltzmann transport theory that takes into account both the applied magnetic field and the FS shape. The MnAs FS is obtained by means of density functional theory, showing a clear dominance of the hyperboloid shape. Our study corroborates that the specific topology of the Fermi surface gives rise to a goniopolar behavior in the Hall transport. These theoretical results are supported by magnetotransport measurements on MnAs thin layers epitaxially grown on GaAs(001) and on GaAs(111), allowing us to explore the transport characteristics for two different crystal directions of the system.
Fil: Helman, Christian. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Bariloche | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Bariloche.; Argentina
Fil: Llois, Ana Maria. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes.; Argentina
Fil: Tortarolo, Marina del Carmen. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes.; Argentina
Materia
ORDINARY HALL EFFECT
MnAs/GaAs EPILAYERS
FERMI SURFACE
GONIOPOLARITY
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:11336/181707
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/181707
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ordinary Hall anomaly due to the Fermi surface shape in MnAsHelman, ChristianLlois, Ana MariaTortarolo, Marina del CarmenORDINARY HALL EFFECTMnAs/GaAs EPILAYERSFERMI SURFACEGONIOPOLARITYhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyze the influence of the Fermi surface (FS) shape on magnetotransport properties, particularly on the Hall effect in the MnAs compound. Evidence of opposite conduction polarities for different crystal directions (goniopolarity) and a strong dependence of carrier type has been observed in MnAs films with an applied magnetic field. To understand this behavior, we developed a semiclassical model together with the Boltzmann transport theory that takes into account both the applied magnetic field and the FS shape. The MnAs FS is obtained by means of density functional theory, showing a clear dominance of the hyperboloid shape. Our study corroborates that the specific topology of the Fermi surface gives rise to a goniopolar behavior in the Hall transport. These theoretical results are supported by magnetotransport measurements on MnAs thin layers epitaxially grown on GaAs(001) and on GaAs(111), allowing us to explore the transport characteristics for two different crystal directions of the system.Fil: Helman, Christian. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Bariloche | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Bariloche.; ArgentinaFil: Llois, Ana Maria. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes.; ArgentinaFil: Tortarolo, Marina del Carmen. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes.; ArgentinaAmerican Physical Society2021-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/zipapplication/pdfhttp://hdl.handle.net/11336/181707Helman, Christian; Llois, Ana Maria; Tortarolo, Marina del Carmen; Ordinary Hall anomaly due to the Fermi surface shape in MnAs; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 104; 19; 10-2021; 1-71098-01212469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevB.104.195109info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.104.195109info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:02:45Zoai:ri.conicet.gov.ar:11336/181707instacron: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:34982025-09-10 13:02:45.533CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ordinary Hall anomaly due to the Fermi surface shape in MnAs
title Ordinary Hall anomaly due to the Fermi surface shape in MnAs
spellingShingle Ordinary Hall anomaly due to the Fermi surface shape in MnAs
Helman, Christian
ORDINARY HALL EFFECT
MnAs/GaAs EPILAYERS
FERMI SURFACE
GONIOPOLARITY
title_short Ordinary Hall anomaly due to the Fermi surface shape in MnAs
title_full Ordinary Hall anomaly due to the Fermi surface shape in MnAs
title_fullStr Ordinary Hall anomaly due to the Fermi surface shape in MnAs
title_full_unstemmed Ordinary Hall anomaly due to the Fermi surface shape in MnAs
title_sort Ordinary Hall anomaly due to the Fermi surface shape in MnAs
dc.creator.none.fl_str_mv Helman, Christian
Llois, Ana Maria
Tortarolo, Marina del Carmen
author Helman, Christian
author_facet Helman, Christian
Llois, Ana Maria
Tortarolo, Marina del Carmen
author_role author
author2 Llois, Ana Maria
Tortarolo, Marina del Carmen
author2_role author
author
dc.subject.none.fl_str_mv ORDINARY HALL EFFECT
MnAs/GaAs EPILAYERS
FERMI SURFACE
GONIOPOLARITY
topic ORDINARY HALL EFFECT
MnAs/GaAs EPILAYERS
FERMI SURFACE
GONIOPOLARITY
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 influence of the Fermi surface (FS) shape on magnetotransport properties, particularly on the Hall effect in the MnAs compound. Evidence of opposite conduction polarities for different crystal directions (goniopolarity) and a strong dependence of carrier type has been observed in MnAs films with an applied magnetic field. To understand this behavior, we developed a semiclassical model together with the Boltzmann transport theory that takes into account both the applied magnetic field and the FS shape. The MnAs FS is obtained by means of density functional theory, showing a clear dominance of the hyperboloid shape. Our study corroborates that the specific topology of the Fermi surface gives rise to a goniopolar behavior in the Hall transport. These theoretical results are supported by magnetotransport measurements on MnAs thin layers epitaxially grown on GaAs(001) and on GaAs(111), allowing us to explore the transport characteristics for two different crystal directions of the system.
Fil: Helman, Christian. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Bariloche | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Bariloche.; Argentina
Fil: Llois, Ana Maria. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes.; Argentina
Fil: Tortarolo, Marina del Carmen. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes.; Argentina
description We analyze the influence of the Fermi surface (FS) shape on magnetotransport properties, particularly on the Hall effect in the MnAs compound. Evidence of opposite conduction polarities for different crystal directions (goniopolarity) and a strong dependence of carrier type has been observed in MnAs films with an applied magnetic field. To understand this behavior, we developed a semiclassical model together with the Boltzmann transport theory that takes into account both the applied magnetic field and the FS shape. The MnAs FS is obtained by means of density functional theory, showing a clear dominance of the hyperboloid shape. Our study corroborates that the specific topology of the Fermi surface gives rise to a goniopolar behavior in the Hall transport. These theoretical results are supported by magnetotransport measurements on MnAs thin layers epitaxially grown on GaAs(001) and on GaAs(111), allowing us to explore the transport characteristics for two different crystal directions of the system.
publishDate 2021
dc.date.none.fl_str_mv 2021-10
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/11336/181707
Helman, Christian; Llois, Ana Maria; Tortarolo, Marina del Carmen; Ordinary Hall anomaly due to the Fermi surface shape in MnAs; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 104; 19; 10-2021; 1-7
1098-0121
2469-9969
CONICET Digital
CONICET
url http://hdl.handle.net/11336/181707
identifier_str_mv Helman, Christian; Llois, Ana Maria; Tortarolo, Marina del Carmen; Ordinary Hall anomaly due to the Fermi surface shape in MnAs; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 104; 19; 10-2021; 1-7
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/url/https://link.aps.org/doi/10.1103/PhysRevB.104.195109
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.104.195109
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/zip
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_ 1842980037858426880
score 12.993085

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