dc.contributor.author |
Ghosh, Subrata |
en_US |
dc.contributor.author |
GHOSH, ARUP |
en_US |
dc.contributor.author |
Mandal, Kalyan |
en_US |
dc.date.accessioned |
2019-09-11T05:05:25Z |
|
dc.date.available |
2019-09-11T05:05:25Z |
|
dc.date.issued |
2018-05 |
en_US |
dc.identifier.citation |
Journal of Alloys and Compounds, 746, 200-205. |
en_US |
dc.identifier.issn |
0925-8388 |
en_US |
dc.identifier.issn |
1873-4669 |
en_US |
dc.identifier.uri |
http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/4059 |
|
dc.identifier.uri |
https://doi.org/10.1016/j.jallcom.2018.02.269 |
en_US |
dc.description.abstract |
We report the magnetic and magnetocaloric properties of Mn48-xFexNi41Sn11 (x = 8.5, 10.5) Heusler alloys. The temperature dependent magnetization curve (M vs T curve) reveals that these alloys show only second order ferromagnetic (FM) to paramagnetic (PM) transition at their Curie temperature (TC) and no structural transformation is observed. A large value of saturation magnetization (MS) ∼ 72.76 Am2/kg is observed at 80 K for x = 8.5 alloy as the alloy becomes purely austenite for this composition. A reversible magnetic entropy change of 1.02 JKg−1K−1 with moderate refrigerant capacity (RC) ∼ 40.2 J/kg are obtained near room temperature (∼305 K) for x = 8.5, across its TC due to a field change of 14 kOe only. The critical exponents are calculated for both the samples and found to exhibit long range ferromagnetic ordering in their austenite phase. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Elsevier B.V. |
en_US |
dc.subject |
Heusler alloy |
en_US |
dc.subject |
Magnetocaloric effect |
en_US |
dc.subject |
Magnetic entropy change |
en_US |
dc.subject |
Magnetic refrigeration |
en_US |
dc.subject |
Refrigeration capacity |
en_US |
dc.subject |
Saturation magnetization |
en_US |
dc.subject |
2018 |
en_US |
dc.title |
Reversible magnetocaloric effect and critical exponent analysis in Mn-Fe-Ni-Sn Heusler alloys |
en_US |
dc.type |
Article |
en_US |
dc.contributor.department |
Dept. of Physics |
en_US |
dc.identifier.sourcetitle |
Journal of Alloys and Compounds |
en_US |
dc.publication.originofpublisher |
Foreign |
en_US |