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The magnetocaloric effect in materials with a second order phase transition: Are T C and T peak necessarily coincident?
dc.creator | Conde Amiano, Alejandro | |
dc.creator | Franco García, Victorino | |
dc.creator | Kuz'min, Michael D. | |
dc.creator | Romero Enrique, José Manuel | |
dc.date.accessioned | 2016-01-25T12:56:45Z | |
dc.date.available | 2016-01-25T12:56:45Z | |
dc.date.issued | 2009 | |
dc.identifier.issn | 0021-8979 | es |
dc.identifier.uri | http://hdl.handle.net/11441/33238 | |
dc.description.abstract | Using the Arrott–Noakes equation of state it is shown that the Curie point TC and the temperature where the magnetic entropy change is maximum Tpeak coincide only in the mean field approximation, but the Heisenberg model implies that Tpeak TC even for homogeneous materials. The distance between Tpeak and TC increases with applied magnetic field following a power law. In both cases, TC corresponds to a singular point in the temperature dependence of the magnetic entropy change. The field dependence of the magnetic entropy change is exactly the same at the Curie temperature and at the temperature of the peak. | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | AIP Publishing | es |
dc.relation.ispartof | Journal of Applied Physics, 105 (07A917) | es |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Applied magnetic fields | es |
dc.subject | Curie points | es |
dc.subject | Equation of state | es |
dc.subject | Field dependences | es |
dc.subject | Heisenberg models | es |
dc.subject | Homogeneous materials | es |
dc.subject | Magnetic entropy changes | es |
dc.subject | Mean-field approximations | es |
dc.subject | Second-order phase transitions | es |
dc.title | The magnetocaloric effect in materials with a second order phase transition: Are T C and T peak necessarily coincident? | 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 | 10.1063/1.3063666 | es |
dc.identifier.doi | http://dx.doi.org/10.1063/1.3063666 | es |
dc.identifier.idus | https://idus.us.es/xmlui/handle/11441/33238 |
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