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The magnetocaloric effect in soft magnetic amorphous alloys

Opened Access The magnetocaloric effect in soft magnetic amorphous alloys

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Autor: Franco García, Victorino
Blázquez Gámez, Javier Sebastián
Millán, M
Borrego Moro, Josefa María
Conde Amiano, Clara Francisca
Conde Amiano, Alejandro
Departamento: Universidad de Sevilla. Departamento de Física de la Materia Condensada
Fecha: 2007
Publicado en: Journal of applied physics, 101, 09C503
Tipo de documento: Artículo
Resumen: The influence of different compositional modifications on the magnetic entropy change and refrigerant capacity of Finemet, Nanoperm, HiTperm, and bulk amorphous alloys is presented. For all the studied alloys, the field dependence of the magnetic entropy change exhibits a quadratic dependence in the paramagnetic regime, a linear dependence in the ferromagnetic temperature range, and a potential law with a field exponent 0.75 at the Curie temperature. This exponent can be explained using the critical exponents of the Curie transition. It is shown that for alloys of similar compositional series, the magnetic entropy change follows a master curve behavior
Tamaño: 209.6Kb
Formato: PDF

URI: http://hdl.handle.net/11441/30782

DOI: http://dx.doi.org/10.1063/1.2709409

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