| Issue |
EPJ Web of Conferences
Volume 40, 2013
JEMS 2012 – Joint European Magnetic Symposia
|
|
|---|---|---|
| Article Number | 06010 | |
| Number of page(s) | 4 | |
| Section | Magnetic materials for energy applications (permanent magnets, magnetocalorics…) | |
| DOI | https://doi.org/10.1051/epjconf/20134006010 | |
| Published online | 14 January 2013 | |
https://doi.org/10.1051/epjconf/20134006010
Rate dependence of the magnetocaloric effect in La-Fe-Si compounds
Istituto Nazionale di Ricerca Metrologica (INRiM), Division Electromagnetism, I-10135 Torino, Italy
The dynamic magnetocaloric effect in La(FexCoySi1-x-y)13 with x=0.9 and low Co content of y=0.015 was analysed by calorimetric measurements at constant magnetic field and constant temperature as well as magnetisation relaxation measurements. It is shown that the rate dependence of the measurement, which leads to an increased entropy hysteresis with increasing rate of the driving force (temperature or magnetic field), can be mainly attributed to a thermal contact resistance R between sample and thermal bath of the measurement setup.
© Owned by the authors, published by EDP Sciences, 2013
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