Critical exponents and scaling invariance in the absence of a critical point

Fil: Saratz, Niculin. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland.

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Detalles Bibliográficos
Autores principales: Saratz, Niculin, Zanin, Danilo Andrea, Ramsperger, Urs, Cannas, Sergio Alejandro, Pescia, Danilo, Vindigni, Alessandro
Otros Autores: https://orcid.org/0000-0002-7749-4104
Formato: publishedVersion article
Lenguaje:Inglés
Publicado: 2023
Materias:
Scaling
Critical
Dipolar interactions
Ultrathin magnetic films
Acceso en línea:http://hdl.handle.net/11086/548563
https://doi.org/10.1038/ncomms13611
Aporte de:
Repositorio Digital Universitario (UNC) de Universidad Nacional de Córdoba
id I10-R141-11086-548563
record_format dspace
spelling I10-R141-11086-5485632023-08-31T13:16:51Z Critical exponents and scaling invariance in the absence of a critical point Saratz, Niculin Zanin, Danilo Andrea Ramsperger, Urs Cannas, Sergio Alejandro Pescia, Danilo Vindigni, Alessandro https://orcid.org/0000-0002-7749-4104 https://orcid.org/0000-0003-4424-2418 https://orcid.org/0000-0001-7331-3532 https://orcid.org/0000-0001-7436-418X https://orcid.org/0000-0003-1941-5989 Scaling Critical Dipolar interactions Ultrathin magnetic films info:eu-repo/semantics/publishedVersion Fil: Saratz, Niculin. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland. Fil: Zanin, Danilo Andrea. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland. Fil: Ramsperger, Urs. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland. Fil: Cannas, Sergio Alejandro. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina. Fil: Cannas, Sergio Alejandro. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Fil: Cannas, Sergio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Pescia, Danilo. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland. Fil: Vindigni, Alessandro. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland. The paramagnetic-to-ferromagnetic phase transition is classified as a critical phenomenon due to the power-law behaviour shown by thermodynamic observables when the Curie point is approached. Here we report the observation of such a behaviour over extraordinarily many decades of suitable scaling variables in ultrathin Fe films, for certain ranges of temperature T and applied field B. This despite the fact that the underlying critical point is practically unreachable because protected by a phase with a modulated domain structure, induced by the dipole–dipole interaction. The modulated structure has a well-defined spatial period and is realized in a portion of the (T, B) plane that extends above the putative critical temperature, where thermodynamic quantities do not display any singularity. Our results imply that scaling behaviour of macroscopic observables is compatible with an avoided critical point. info:eu-repo/semantics/publishedVersion Fil: Saratz, Niculin. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland. Fil: Zanin, Danilo Andrea. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland. Fil: Ramsperger, Urs. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland. Fil: Cannas, Sergio Alejandro. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina. Fil: Cannas, Sergio Alejandro. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Fil: Cannas, Sergio Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Pescia, Danilo. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland. Fil: Vindigni, Alessandro. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland. Física de los Materiales Condensados 2023-08-23T15:25:46Z 2023-08-23T15:25:46Z 2016 article http://hdl.handle.net/11086/548563 https://doi.org/10.1038/ncomms13611 eng Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ Electrónico y/o Digital e-ISSN 2041-1723
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-141
collection Repositorio Digital Universitario (UNC)
language Inglés
topic Scaling
Critical
Dipolar interactions
Ultrathin magnetic films
spellingShingle Scaling
Critical
Dipolar interactions
Ultrathin magnetic films
Saratz, Niculin
Zanin, Danilo Andrea
Ramsperger, Urs
Cannas, Sergio Alejandro
Pescia, Danilo
Vindigni, Alessandro
Critical exponents and scaling invariance in the absence of a critical point
topic_facet Scaling
Critical
Dipolar interactions
Ultrathin magnetic films
description Fil: Saratz, Niculin. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland.
author2 https://orcid.org/0000-0002-7749-4104
author_facet https://orcid.org/0000-0002-7749-4104
Saratz, Niculin
Zanin, Danilo Andrea
Ramsperger, Urs
Cannas, Sergio Alejandro
Pescia, Danilo
Vindigni, Alessandro
format publishedVersion
article
author Saratz, Niculin
Zanin, Danilo Andrea
Ramsperger, Urs
Cannas, Sergio Alejandro
Pescia, Danilo
Vindigni, Alessandro
author_sort Saratz, Niculin
title Critical exponents and scaling invariance in the absence of a critical point
title_short Critical exponents and scaling invariance in the absence of a critical point
title_full Critical exponents and scaling invariance in the absence of a critical point
title_fullStr Critical exponents and scaling invariance in the absence of a critical point
title_full_unstemmed Critical exponents and scaling invariance in the absence of a critical point
title_sort critical exponents and scaling invariance in the absence of a critical point
publishDate 2023
url http://hdl.handle.net/11086/548563
https://doi.org/10.1038/ncomms13611
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AT pesciadanilo criticalexponentsandscalinginvarianceintheabsenceofacriticalpoint
AT vindignialessandro criticalexponentsandscalinginvarianceintheabsenceofacriticalpoint
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