Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-field
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1038/s41598-020-75748-5 http://hdl.handle.net/11449/208088 |
Resumo: | Within the framework of the generalized time-dependent Ginzburg–Landau equations, we studied the influence of the magnetic self-field induced by the currents inside a superconducting sample driven by an applied transport current. The numerical simulations of the resistive state of the system show that neither material inhomogeneity nor a normal contact smaller than the sample width are required to produce an inhomogeneous current distribution inside the sample, which leads to the emergence of a kinematic vortex–antivortex pair (vortex street) solution. Further, we discuss the behaviors of the kinematic vortex velocity, the annihilation rates of the supercurrent, and the superconducting order parameters alongside the vortex street solution. We prove that these two latter points explain the characteristics of the resistive state of the system. They are the fundamental basis to describe the peak of the current–resistance characteristic curve and the location where the vortex–antivortex pair is formed. |
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Repositório Institucional da UNESP |
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spelling |
Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-fieldWithin the framework of the generalized time-dependent Ginzburg–Landau equations, we studied the influence of the magnetic self-field induced by the currents inside a superconducting sample driven by an applied transport current. The numerical simulations of the resistive state of the system show that neither material inhomogeneity nor a normal contact smaller than the sample width are required to produce an inhomogeneous current distribution inside the sample, which leads to the emergence of a kinematic vortex–antivortex pair (vortex street) solution. Further, we discuss the behaviors of the kinematic vortex velocity, the annihilation rates of the supercurrent, and the superconducting order parameters alongside the vortex street solution. We prove that these two latter points explain the characteristics of the resistive state of the system. They are the fundamental basis to describe the peak of the current–resistance characteristic curve and the location where the vortex–antivortex pair is formed.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Departamento de Física Faculdade de Ciências Universidade Estadual Paulista (UNESP), Caixa Postal 473Instituto de Física Gleb Wataghin Universidade Estadual de Campinas, P.O. Box 6165Departamento de Física Faculdade de Ciências Universidade Estadual Paulista (UNESP), Caixa Postal 473FAPESP: 12/04388-0FAPESP: 15/21189-0Universidade Estadual Paulista (Unesp)Universidade Estadual de Campinas (UNICAMP)Cadorim, Leonardo Rodrigues [UNESP]de Oliveira Junior, AlexssandreSardella, Edson [UNESP]2021-06-25T11:06:10Z2021-06-25T11:06:10Z2020-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1038/s41598-020-75748-5Scientific Reports, v. 10, n. 1, 2020.2045-2322http://hdl.handle.net/11449/20808810.1038/s41598-020-75748-52-s2.0-85094215993Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientific Reportsinfo:eu-repo/semantics/openAccess2024-04-25T17:39:52Zoai:repositorio.unesp.br:11449/208088Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:14:03.625045Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-field |
title |
Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-field |
spellingShingle |
Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-field Cadorim, Leonardo Rodrigues [UNESP] |
title_short |
Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-field |
title_full |
Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-field |
title_fullStr |
Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-field |
title_full_unstemmed |
Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-field |
title_sort |
Ultra-fast kinematic vortices in mesoscopic superconductors: the effect of the self-field |
author |
Cadorim, Leonardo Rodrigues [UNESP] |
author_facet |
Cadorim, Leonardo Rodrigues [UNESP] de Oliveira Junior, Alexssandre Sardella, Edson [UNESP] |
author_role |
author |
author2 |
de Oliveira Junior, Alexssandre Sardella, Edson [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Cadorim, Leonardo Rodrigues [UNESP] de Oliveira Junior, Alexssandre Sardella, Edson [UNESP] |
description |
Within the framework of the generalized time-dependent Ginzburg–Landau equations, we studied the influence of the magnetic self-field induced by the currents inside a superconducting sample driven by an applied transport current. The numerical simulations of the resistive state of the system show that neither material inhomogeneity nor a normal contact smaller than the sample width are required to produce an inhomogeneous current distribution inside the sample, which leads to the emergence of a kinematic vortex–antivortex pair (vortex street) solution. Further, we discuss the behaviors of the kinematic vortex velocity, the annihilation rates of the supercurrent, and the superconducting order parameters alongside the vortex street solution. We prove that these two latter points explain the characteristics of the resistive state of the system. They are the fundamental basis to describe the peak of the current–resistance characteristic curve and the location where the vortex–antivortex pair is formed. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-01 2021-06-25T11:06:10Z 2021-06-25T11:06:10Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1038/s41598-020-75748-5 Scientific Reports, v. 10, n. 1, 2020. 2045-2322 http://hdl.handle.net/11449/208088 10.1038/s41598-020-75748-5 2-s2.0-85094215993 |
url |
http://dx.doi.org/10.1038/s41598-020-75748-5 http://hdl.handle.net/11449/208088 |
identifier_str_mv |
Scientific Reports, v. 10, n. 1, 2020. 2045-2322 10.1038/s41598-020-75748-5 2-s2.0-85094215993 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Scientific Reports |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128910011924480 |