Influence of the demagnetizing field on the determination of the magnetocaloric effect from magnetization curves

R. Caballero-Flores, V. Franco, A. Conde, L. F. Kiss

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The influence of the demagnetizing factor (N) on the magnetic entropy change (Δ SM) 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 Δ SM, 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 Δ SM (T) curves for samples with different shapes, the recently proposed universal curve for the magnetocaloric effect can be used.

Original languageEnglish
Article number07A919
JournalJournal of Applied Physics
Issue number7
Publication statusPublished - Apr 27 2009


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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