Regensburg 2013 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 16: Poster I
MA 16.63: Poster
Dienstag, 12. März 2013, 10:30–13:30, Poster D
Investigation of the magnetocaloric effect in La(Fe,Si,Co)13 compound in pulsed magnetic fields — •Mahdiyeh Ghorbani Zavareh1, 2, Iurii Scurschii1, Konstantin Skokov3, Oliver Gutfleisch3, and Joachim Wosnitza1 — 1Dresden High Magnetic Field Laboratory, Helmholtz-Zentrum Dresden Rossendorf, D-01314 Dresden, — 2TU Dresden Helmholtzstr. 10, 01069 Dresden, Germany — 3Materials Science, Technical University Darmstadt, Petersenstr. 23, 64287 Darmstadt, Germany
We report on direct measurements of the magnetocaloric effect (MCE) of La(Fe,Si,Co)13 compound, which belongs to a family of materials prospective for magnetic refrigeration applications. Measurements in quasi-static magnetic fields up to 2 Tesla have shown the change of temperature up to 6 K[1]. A new technique of measuring the MCE directly in pulsed magnetic field has been developed. This allows to investigate MCE in magnetic fields up to 70 Tesla. The set-up has been tested by measuring MCE of polycrystalline gadolinium. We have measured MCE of La(Fe,Si,Co)13 compound in the fields up to 10 Tesla. The data obtained are in a good agreement with the quasi-static data.[1]J. Lyubina, O. Gutfleisch, M. D. Kuz'min, and M. Richter, J. Magn. Magn. Mater. 321, 3571 (2009).