Artículo
Influence of the demagnetizing field on the determination of the magnetocaloric effect from magnetization curves
Autor/es | Caballero Flores, Rafael
Franco García, Victorino Conde Amiano, Alejandro Kiss, László Ferenc |
Departamento | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Fecha de publicación | 2009-02-12 |
Fecha de depósito | 2016-01-25 |
Publicado en |
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Resumen | The influence of the demagnetizing factor (N) on the magnetic entropy change (DSM) curves is studied for materials with a second order phase transition. For this purpose, a soft magnetic amorphous ribbon is measured for ... The influence of the demagnetizing factor (N) on the magnetic entropy change (DSM) curves is studied for materials with a second order phase transition. For this purpose, a soft magnetic amorphous ribbon is measured for different orientations of the magnetic field with respect to the plane of the sample. For temperatures below the Curie temperature (TC), the increase in N causes a decrease in DSM, while for temperatures above TC no change in the shape of the curves has been found for the different orientations, as expected. In order to eliminate this influence of N and compare the DSM(T) curves for samples with different shapes, the recently proposed universal curve for the magnetocaloric effect can be used. |
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