Field Dependence of the Magnetocaloric Effect in MnFe(P,Si) Materials

The field dependence of the magnetocaloric effect (MCE) in Mn 1.22 Fe 0.73 P 0.47 Si 0.53 is studied in terms of the entropy change (ΔS) and the temperature change (ΔT) for applied magnetic fields up to 5 and 14 T, respectively. The magnetic fields required to saturate the MCE in this system are ~1....

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on magnetics 2015-11, Vol.51 (11), p.1-4
Main Authors: Guillou, F., Yibole, H., Kamantsev, A., Porcari, G., Cwik, J., Koledov, V., van Dijk, N. H., Brick, E.
Format: Article
Language:English
Subjects:
Entropy
Evolution
Heating
Latent heat
Magnetic field measurement
Magnetic fields
Magnetic hysteresis
Magnetic materials
Magnetic properties
Magnetism
Magnetocaloric effect
Mathematical models
Power law
Saturation magnetization
Temperature measurement
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The field dependence of the magnetocaloric effect (MCE) in Mn 1.22 Fe 0.73 P 0.47 Si 0.53 is studied in terms of the entropy change (ΔS) and the temperature change (ΔT) for applied magnetic fields up to 5 and 14 T, respectively. The magnetic fields required to saturate the MCE in this system are ~1.7 and 4-5 T for ΔS and ΔT, respectively. The MCE field dependence is compared with the two approaches of the literature: 1) latent heat model and 2) the power law evolution predicted from the universal analysis of the MCE. It turns out that both of these methods are unsuitable to describe the MCE field evolution in MnFe(P,Si) materials.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2015.2445975