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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Format: | info:eu-repo/semantics/publishedVersion |
Language: | eng |
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2023
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Online Access: | http://hdl.handle.net/11086/548563 https://doi.org/10.1038/ncomms13611 |
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author | Saratz, Niculin Zanin, Danilo Andrea Ramsperger, Urs Cannas, Sergio Alejandro Pescia, Danilo Vindigni, Alessandro |
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 |
author_sort | Saratz, Niculin |
collection | Repositorio Digital Universitario |
description | Fil: Saratz, Niculin. Eidgenössische Technische Hochschule Zürich. Laboratorium für Festkörperphysik; Switzerland. |
format | info:eu-repo/semantics/publishedVersion |
id | rdu-unc.548563 |
institution | Universidad Nacional de Cordoba |
language | eng |
publishDate | 2023 |
record_format | dspace |
spelling | rdu-unc.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 |
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 |
title | 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_short | 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 |
topic | Scaling Critical Dipolar interactions Ultrathin magnetic films |
url | http://hdl.handle.net/11086/548563 https://doi.org/10.1038/ncomms13611 |
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