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Artículo
Field dependence of the magnetocaloric effect in materials with a second order phase transition: A master curve for the magnetic entropy change
dc.creator | Conde Amiano, Alejandro | |
dc.creator | Blázquez Gámez, Javier Sebastián | |
dc.creator | Franco García, Victorino | |
dc.date.accessioned | 2016-01-26T12:32:15Z | |
dc.date.available | 2016-01-26T12:32:15Z | |
dc.date.issued | 2006 | |
dc.identifier.issn | 0003-6951 | es |
dc.identifier.uri | http://hdl.handle.net/11441/33352 | |
dc.description.abstract | The field dependence of the magnetic entropy change can be expressed as SM Hn. For soft magnetic amorphous alloys n=1 well below the Curie temperature TC , n=2 in the paramagnetic range, and n 0.75 for T=TC. The first value can be explained with simple arguments, n=2 is a consequence of the Curie-Weiss law, but n TC deviates from mean field predictions. From the Arrott-Noakes equation of state, a relation between n TC and the critical exponents has been obtained, showing remarkable agreement with experimental data for an example alloy, predicted n=0.72 versus experimental n=0.73 . A master curve behavior for the temperature dependence of SM measured for different maximum fields is proposed. | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | AIP Publishing | es |
dc.relation.ispartof | Applied Physics Letters, 89 (222512) | es |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Entropy | es |
dc.subject | Magnetic field effects | es |
dc.subject | Phase transitions | es |
dc.subject | Thermal effects | es |
dc.title | Field dependence of the magnetocaloric effect in materials with a second order phase transition: A master curve for the magnetic entropy change | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física de la Materia Condensada | es |
dc.relation.publisherversion | 10.1063/1.2399361 | es |
dc.identifier.doi | http://dx.doi.org/10.1063/1.2399361 | es |
dc.identifier.idus | https://idus.us.es/xmlui/handle/11441/33352 |
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