Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity

Autores
Yadav, C. S.; Seyfarth, G.; Pedrazzini, Pablo; Wilhelm, H.; Černý, R.; Jaccard, D.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
High pressure electrical resistivity and x-ray diffraction experiments have been performed on Fe single crystals. The crystallographic investigation provides direct evidence that in the martensitic bcc → hcp transition at 14 GPa the {110}bcc become the {002}hcp directions. During a pressure cycle, resistivity shows a broad hysteresis of 6.5 GPa, whereas superconductivity, observed between 13 and 31 GPa, remains unaffected. Upon increasing pressure an electronic instability, probably a quantum critical point, is observed at around 19 GPa and, close to this pressure, the superconducting Tc and the isothermal resistivity (0 Fil: Yadav, C. S.. Universidad de Ginebra; Suiza
Fil: Seyfarth, G.. Universidad de Ginebra; Suiza
Fil: Pedrazzini, Pablo. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (centro Atómico Bariloche). División Bajas Temperaturas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Wilhelm, H.. Diamond Light Source Limited; Reino Unido
Fil: Černý, R.. Universidad de Ginebra; Suiza
Fil: Jaccard, D.. Universidad de Ginebra; Suiza
Materia
High-Pressure Effects in Solids And Liquids
Metals; Alloys And Binary Compounds
Transport Properties
Superconductivity: Nonconventional Mechanisms
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:11336/17693
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/17693
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivityYadav, C. S.Seyfarth, G.Pedrazzini, PabloWilhelm, H.Černý, R.Jaccard, D.High-Pressure Effects in Solids And LiquidsMetals; Alloys And Binary CompoundsTransport PropertiesSuperconductivity: Nonconventional Mechanismshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1High pressure electrical resistivity and x-ray diffraction experiments have been performed on Fe single crystals. The crystallographic investigation provides direct evidence that in the martensitic bcc → hcp transition at 14 GPa the {110}bcc become the {002}hcp directions. During a pressure cycle, resistivity shows a broad hysteresis of 6.5 GPa, whereas superconductivity, observed between 13 and 31 GPa, remains unaffected. Upon increasing pressure an electronic instability, probably a quantum critical point, is observed at around 19 GPa and, close to this pressure, the superconducting Tc and the isothermal resistivity (0 <T < 300 K) attain maximum values. In the superconducting pressure domain, the exponent n = 5/3 of the temperature power law of resistivity and its prefactor, which mimics Tc, indicate that ferromagnetic fluctuations may provide the glue for the Cooper pairs, yielding unconventional superconductivity.Fil: Yadav, C. S.. Universidad de Ginebra; SuizaFil: Seyfarth, G.. Universidad de Ginebra; SuizaFil: Pedrazzini, Pablo. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (centro Atómico Bariloche). División Bajas Temperaturas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Wilhelm, H.. Diamond Light Source Limited; Reino UnidoFil: Černý, R.. Universidad de Ginebra; SuizaFil: Jaccard, D.. Universidad de Ginebra; SuizaAmerican Physical Society2013-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17693Yadav, C. S.; Seyfarth, G.; Pedrazzini, Pablo; Wilhelm, H.; Černý, R.; et al.; Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity; American Physical Society; Physical Review B: Condensed Matter And Materials Physics; 88; 5; 8-2013; 1-7; 541101098-0121enginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.88.054110info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.88.054110info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:45:16Zoai:ri.conicet.gov.ar:11336/17693instacron: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:34982025-10-15 15:45:17.189CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity
title Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity
spellingShingle Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity
Yadav, C. S.
High-Pressure Effects in Solids And Liquids
Metals; Alloys And Binary Compounds
Transport Properties
Superconductivity: Nonconventional Mechanisms
title_short Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity
title_full Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity
title_fullStr Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity
title_full_unstemmed Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity
title_sort Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity
dc.creator.none.fl_str_mv Yadav, C. S.
Seyfarth, G.
Pedrazzini, Pablo
Wilhelm, H.
Černý, R.
Jaccard, D.
author Yadav, C. S.
author_facet Yadav, C. S.
Seyfarth, G.
Pedrazzini, Pablo
Wilhelm, H.
Černý, R.
Jaccard, D.
author_role author
author2 Seyfarth, G.
Pedrazzini, Pablo
Wilhelm, H.
Černý, R.
Jaccard, D.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv High-Pressure Effects in Solids And Liquids
Metals; Alloys And Binary Compounds
Transport Properties
Superconductivity: Nonconventional Mechanisms
topic High-Pressure Effects in Solids And Liquids
Metals; Alloys And Binary Compounds
Transport Properties
Superconductivity: Nonconventional Mechanisms
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv High pressure electrical resistivity and x-ray diffraction experiments have been performed on Fe single crystals. The crystallographic investigation provides direct evidence that in the martensitic bcc → hcp transition at 14 GPa the {110}bcc become the {002}hcp directions. During a pressure cycle, resistivity shows a broad hysteresis of 6.5 GPa, whereas superconductivity, observed between 13 and 31 GPa, remains unaffected. Upon increasing pressure an electronic instability, probably a quantum critical point, is observed at around 19 GPa and, close to this pressure, the superconducting Tc and the isothermal resistivity (0 <T < 300 K) attain maximum values. In the superconducting pressure domain, the exponent n = 5/3 of the temperature power law of resistivity and its prefactor, which mimics Tc, indicate that ferromagnetic fluctuations may provide the glue for the Cooper pairs, yielding unconventional superconductivity.
Fil: Yadav, C. S.. Universidad de Ginebra; Suiza
Fil: Seyfarth, G.. Universidad de Ginebra; Suiza
Fil: Pedrazzini, Pablo. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (centro Atómico Bariloche). División Bajas Temperaturas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Wilhelm, H.. Diamond Light Source Limited; Reino Unido
Fil: Černý, R.. Universidad de Ginebra; Suiza
Fil: Jaccard, D.. Universidad de Ginebra; Suiza
description High pressure electrical resistivity and x-ray diffraction experiments have been performed on Fe single crystals. The crystallographic investigation provides direct evidence that in the martensitic bcc → hcp transition at 14 GPa the {110}bcc become the {002}hcp directions. During a pressure cycle, resistivity shows a broad hysteresis of 6.5 GPa, whereas superconductivity, observed between 13 and 31 GPa, remains unaffected. Upon increasing pressure an electronic instability, probably a quantum critical point, is observed at around 19 GPa and, close to this pressure, the superconducting Tc and the isothermal resistivity (0 <T < 300 K) attain maximum values. In the superconducting pressure domain, the exponent n = 5/3 of the temperature power law of resistivity and its prefactor, which mimics Tc, indicate that ferromagnetic fluctuations may provide the glue for the Cooper pairs, yielding unconventional superconductivity.
publishDate 2013
dc.date.none.fl_str_mv 2013-08
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/11336/17693
Yadav, C. S.; Seyfarth, G.; Pedrazzini, Pablo; Wilhelm, H.; Černý, R.; et al.; Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity; American Physical Society; Physical Review B: Condensed Matter And Materials Physics; 88; 5; 8-2013; 1-7; 54110
1098-0121
url http://hdl.handle.net/11336/17693
identifier_str_mv Yadav, C. S.; Seyfarth, G.; Pedrazzini, Pablo; Wilhelm, H.; Černý, R.; et al.; Effect of pressure cycling on iron: Signatures of an electronic instability and unconventional superconductivity; American Physical Society; Physical Review B: Condensed Matter And Materials Physics; 88; 5; 8-2013; 1-7; 54110
1098-0121
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.88.054110
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.88.054110
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_ 1846083553062813696
score 13.22299

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