| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1627059 | Journal of Alloys and Compounds | 2007 | 4 Pages |
Abstract
The magnetic and magnetocaloric properties of Gd1−xSmxMn2Si2 compounds with 0 ≤ x ≤ 1 have been studied to determine their suitability as magnetic refrigerant materials. The rare earth ordering temperatures are found to decrease from 60 K for x = 0 to 37 K for x = 1. The temperature variations of magnetization under ‘field-cooled’ and ‘zero-field-cooled’ conditions are found to differ slightly, indicating a small thermomagnetic irreversibility. Magnetocaloric effect is calculated in terms of isothermal magnetic entropy change (ΔSM) using the magnetization isotherms. The maximum values of ΔSM are found to be 5.9 J kg−1 K−1 in GdMn2Si2 and 3.4 J kg−1 K−1 in SmMn2Si2.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Pramod Kumar, Niraj K. Singh, K.G. Suresh, A.K. Nigam,