Two scenarios for superconductivity in CeRh2As2
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/235081 |
Resumo: | CeRh2As2, a nonsymmorphic heavy fermion material, was recently reported to host a remarkable temperature versus z-axis magnetic-field phase diagram with two superconducting phases. In this material, the two inequivalent Ce sites per unit cell, related by inversion symmetry, introduce a sublattice structure corresponding to an extra internal degree of freedom. Here we propose a classification of the possible superconducting states in CeRh2As2 from the two Ce-sites' perspective. Based on the superconducting fitness analysis and the quasiclassical Eilenberger equations, we discuss two limits: Rashba spin-orbit coupling and interlayer hopping dominated normal state. In both limits, we are able to find two scenarios that generate phase diagrams in qualitative agreement with experiments: (i) intrasublattice pairing with an even-odd transition under z-axis magnetic field and (ii) intersublattice pairing with an odd-odd transition under z-axis magnetic field. |
id |
UFRGS-2_8d131ef04f2d2657293f65823bce2028 |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/235081 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Möckli, DavidOliveira, Aline Ramires Neves de2022-02-12T04:51:48Z20212643-1564http://hdl.handle.net/10183/235081001130533CeRh2As2, a nonsymmorphic heavy fermion material, was recently reported to host a remarkable temperature versus z-axis magnetic-field phase diagram with two superconducting phases. In this material, the two inequivalent Ce sites per unit cell, related by inversion symmetry, introduce a sublattice structure corresponding to an extra internal degree of freedom. Here we propose a classification of the possible superconducting states in CeRh2As2 from the two Ce-sites' perspective. Based on the superconducting fitness analysis and the quasiclassical Eilenberger equations, we discuss two limits: Rashba spin-orbit coupling and interlayer hopping dominated normal state. In both limits, we are able to find two scenarios that generate phase diagrams in qualitative agreement with experiments: (i) intrasublattice pairing with an even-odd transition under z-axis magnetic field and (ii) intersublattice pairing with an odd-odd transition under z-axis magnetic field.application/pdfengPhysical Review Research. College Park. Vol. 3, no. 2 (June/Aug. 2021), 023204, 6 p.SupercondutividadeFermionsDiagrama de fasesTwo scenarios for superconductivity in CeRh2As2Estrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001130533.pdf.txt001130533.pdf.txtExtracted Texttext/plain29992http://www.lume.ufrgs.br/bitstream/10183/235081/2/001130533.pdf.txtaadef87c6f449feeead71793b7b32941MD52ORIGINAL001130533.pdfTexto completo (inglês)application/pdf436544http://www.lume.ufrgs.br/bitstream/10183/235081/1/001130533.pdf5cfdcfc0d905148a2a1b9f1fe1cfda65MD5110183/2350812023-05-21 03:27:38.139898oai:www.lume.ufrgs.br:10183/235081Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-05-21T06:27:38Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Two scenarios for superconductivity in CeRh2As2 |
title |
Two scenarios for superconductivity in CeRh2As2 |
spellingShingle |
Two scenarios for superconductivity in CeRh2As2 Möckli, David Supercondutividade Fermions Diagrama de fases |
title_short |
Two scenarios for superconductivity in CeRh2As2 |
title_full |
Two scenarios for superconductivity in CeRh2As2 |
title_fullStr |
Two scenarios for superconductivity in CeRh2As2 |
title_full_unstemmed |
Two scenarios for superconductivity in CeRh2As2 |
title_sort |
Two scenarios for superconductivity in CeRh2As2 |
author |
Möckli, David |
author_facet |
Möckli, David Oliveira, Aline Ramires Neves de |
author_role |
author |
author2 |
Oliveira, Aline Ramires Neves de |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Möckli, David Oliveira, Aline Ramires Neves de |
dc.subject.por.fl_str_mv |
Supercondutividade Fermions Diagrama de fases |
topic |
Supercondutividade Fermions Diagrama de fases |
description |
CeRh2As2, a nonsymmorphic heavy fermion material, was recently reported to host a remarkable temperature versus z-axis magnetic-field phase diagram with two superconducting phases. In this material, the two inequivalent Ce sites per unit cell, related by inversion symmetry, introduce a sublattice structure corresponding to an extra internal degree of freedom. Here we propose a classification of the possible superconducting states in CeRh2As2 from the two Ce-sites' perspective. Based on the superconducting fitness analysis and the quasiclassical Eilenberger equations, we discuss two limits: Rashba spin-orbit coupling and interlayer hopping dominated normal state. In both limits, we are able to find two scenarios that generate phase diagrams in qualitative agreement with experiments: (i) intrasublattice pairing with an even-odd transition under z-axis magnetic field and (ii) intersublattice pairing with an odd-odd transition under z-axis magnetic field. |
publishDate |
2021 |
dc.date.issued.fl_str_mv |
2021 |
dc.date.accessioned.fl_str_mv |
2022-02-12T04:51:48Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/235081 |
dc.identifier.issn.pt_BR.fl_str_mv |
2643-1564 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001130533 |
identifier_str_mv |
2643-1564 001130533 |
url |
http://hdl.handle.net/10183/235081 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical Review Research. College Park. Vol. 3, no. 2 (June/Aug. 2021), 023204, 6 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/235081/2/001130533.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/235081/1/001130533.pdf |
bitstream.checksum.fl_str_mv |
aadef87c6f449feeead71793b7b32941 5cfdcfc0d905148a2a1b9f1fe1cfda65 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1801225050209124352 |