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| Title: | Magnetization and specific heat studies of RNi4Ga (R=Sm, Gd and Tb) |
| Authors: | JOSHI, DA
TOMY, CV
NAGARAJAN, R
MALIK, SK |
| Keywords: | rare-earth
hardness
metals |
| Issue Date: | 2007 |
| Publisher: | ELSEVIER SCIENCE BV |
| Citation: | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 313(1), 151-156 |
| Abstract: | In order to elucidate the anomalous magnetic properties in the ferromagnetically ordered state of SmNi4Ga GdNi4Ga and TbNi4Ga, we have carried out a detailed study with magnetization and specific heat (SH) measurements. GdNi4Ga shows the possibility of a filled 3d band and a helical spin arrangement below the ordering temperature. TbNi4Ga shows a dominant crystal field effect resulting in a deviation of T-C from the de-Gennes scaling and possible Schottky anomalies in the SH. SmNi4Ga shows a large coercivity at low temperatures. A rough estimate of the domain wall thickness in SmNi4Ga gives a value of 8 angstrom. (C) 2007 |
| URI: | http://dx.doi.org/10.1016/j.jmmm.2006.12.023
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6754
http://hdl.handle.net/10054/6754 |
| ISSN: | 0304-8853 |
| Appears in Collections: | Article
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