Depinning free of the elastic approximation

Autores
Kolton, Alejandro Benedykt; Ferrero, Eduardo Ezequiel; Rosso, Alberto
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We model the isotropic depinning transition of a domain wall using a two-dimensional Ginzburg-Landau scalar field instead of a directed elastic string in a random media. An exact algorithm accurately targets both the critical depinning field and the critical configuration for each sample. For random bond disorder of weak strength Δ, the critical field scales as Δ4/3 in agreement with the predictions for the quenched Edwards-Wilkinson elastic model. However, critical configurations display overhangs beyond a characteristic length l0∼Δ-α, with α≈2.2, indicating a finite-size crossover. At large scales, overhangs recover the orientational symmetry which is broken by directed elastic interfaces. We obtain quenched Edwards-Wilkinson exponents below l0 and invasion percolation depinning exponents above l0. A full picture of domain-wall isotropic depinning in two dimensions is hence proposed.
Fil: Kolton, Alejandro Benedykt. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Ferrero, Eduardo Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Barcelona. Facultad de Física; España. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Rosso, Alberto. Universite Paris-Saclay ;
Materia
DEPINNING
MAGNETIC DOMAIN WALL
GINZBURG-LANDAU
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:11336/228525

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network_name_str CONICET Digital (CONICET)
spelling Depinning free of the elastic approximationKolton, Alejandro BenedyktFerrero, Eduardo EzequielRosso, AlbertoDEPINNINGMAGNETIC DOMAIN WALLGINZBURG-LANDAUhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We model the isotropic depinning transition of a domain wall using a two-dimensional Ginzburg-Landau scalar field instead of a directed elastic string in a random media. An exact algorithm accurately targets both the critical depinning field and the critical configuration for each sample. For random bond disorder of weak strength Δ, the critical field scales as Δ4/3 in agreement with the predictions for the quenched Edwards-Wilkinson elastic model. However, critical configurations display overhangs beyond a characteristic length l0∼Δ-α, with α≈2.2, indicating a finite-size crossover. At large scales, overhangs recover the orientational symmetry which is broken by directed elastic interfaces. We obtain quenched Edwards-Wilkinson exponents below l0 and invasion percolation depinning exponents above l0. A full picture of domain-wall isotropic depinning in two dimensions is hence proposed.Fil: Kolton, Alejandro Benedykt. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Ferrero, Eduardo Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Barcelona. Facultad de Física; España. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Rosso, Alberto. Universite Paris-Saclay ;American Physical Society2023-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/228525Kolton, Alejandro Benedykt; Ferrero, Eduardo Ezequiel; Rosso, Alberto; Depinning free of the elastic approximation; American Physical Society; Physical Review B; 108; 17; 11-2023; 1-82469-99502469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevB.108.174201info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.108.174201info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:26Zoai:ri.conicet.gov.ar:11336/228525instacron: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:34982025-09-29 09:40:26.553CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Depinning free of the elastic approximation
title Depinning free of the elastic approximation
spellingShingle Depinning free of the elastic approximation
Kolton, Alejandro Benedykt
DEPINNING
MAGNETIC DOMAIN WALL
GINZBURG-LANDAU
title_short Depinning free of the elastic approximation
title_full Depinning free of the elastic approximation
title_fullStr Depinning free of the elastic approximation
title_full_unstemmed Depinning free of the elastic approximation
title_sort Depinning free of the elastic approximation
dc.creator.none.fl_str_mv Kolton, Alejandro Benedykt
Ferrero, Eduardo Ezequiel
Rosso, Alberto
author Kolton, Alejandro Benedykt
author_facet Kolton, Alejandro Benedykt
Ferrero, Eduardo Ezequiel
Rosso, Alberto
author_role author
author2 Ferrero, Eduardo Ezequiel
Rosso, Alberto
author2_role author
author
dc.subject.none.fl_str_mv DEPINNING
MAGNETIC DOMAIN WALL
GINZBURG-LANDAU
topic DEPINNING
MAGNETIC DOMAIN WALL
GINZBURG-LANDAU
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 model the isotropic depinning transition of a domain wall using a two-dimensional Ginzburg-Landau scalar field instead of a directed elastic string in a random media. An exact algorithm accurately targets both the critical depinning field and the critical configuration for each sample. For random bond disorder of weak strength Δ, the critical field scales as Δ4/3 in agreement with the predictions for the quenched Edwards-Wilkinson elastic model. However, critical configurations display overhangs beyond a characteristic length l0∼Δ-α, with α≈2.2, indicating a finite-size crossover. At large scales, overhangs recover the orientational symmetry which is broken by directed elastic interfaces. We obtain quenched Edwards-Wilkinson exponents below l0 and invasion percolation depinning exponents above l0. A full picture of domain-wall isotropic depinning in two dimensions is hence proposed.
Fil: Kolton, Alejandro Benedykt. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Ferrero, Eduardo Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Barcelona. Facultad de Física; España. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Rosso, Alberto. Universite Paris-Saclay ;
description We model the isotropic depinning transition of a domain wall using a two-dimensional Ginzburg-Landau scalar field instead of a directed elastic string in a random media. An exact algorithm accurately targets both the critical depinning field and the critical configuration for each sample. For random bond disorder of weak strength Δ, the critical field scales as Δ4/3 in agreement with the predictions for the quenched Edwards-Wilkinson elastic model. However, critical configurations display overhangs beyond a characteristic length l0∼Δ-α, with α≈2.2, indicating a finite-size crossover. At large scales, overhangs recover the orientational symmetry which is broken by directed elastic interfaces. We obtain quenched Edwards-Wilkinson exponents below l0 and invasion percolation depinning exponents above l0. A full picture of domain-wall isotropic depinning in two dimensions is hence proposed.
publishDate 2023
dc.date.none.fl_str_mv 2023-11
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/11336/228525
Kolton, Alejandro Benedykt; Ferrero, Eduardo Ezequiel; Rosso, Alberto; Depinning free of the elastic approximation; American Physical Society; Physical Review B; 108; 17; 11-2023; 1-8
2469-9950
2469-9969
CONICET Digital
CONICET
url http://hdl.handle.net/11336/228525
identifier_str_mv Kolton, Alejandro Benedykt; Ferrero, Eduardo Ezequiel; Rosso, Alberto; Depinning free of the elastic approximation; American Physical Society; Physical Review B; 108; 17; 11-2023; 1-8
2469-9950
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.108.174201
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.108.174201
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
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