Magnetic properties of ternary gallides of type RNi4Ga (R=rare earths)

Joshi, Devang A. ; Tomy, C. V. ; Rana, D. S. ; Nagarajan, R. ; Malik, S. K. (2006) Magnetic properties of ternary gallides of type RNi4Ga (R=rare earths) Solid State Communications, 137 (4). pp. 225-229. ISSN 0038-1098

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00381...

Related URL: http://dx.doi.org/10.1016/j.ssc.2005.11.005

Abstract

The magnetic properties of RNi4Ga (R=La, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm and Lu) compounds have been investigated. These compounds form in a hexagonal CaCu5 type structure with a space group P6/mmm. Compounds with the magnetic rare earths, R= Nd, Sm, Gd, Tb, Dy, Ho, Er and Tm, undergo a ferromagnetic transition at 5, 17, 20, 19, 12, 3.5, 8 and 6.5 K, respectively. The transition temperatures are smaller compared to their respective parent compounds RNi5. PrNi4Ga is paramagnetic down to 2 K. LaNi4Ga and LuNi4Ga are Pauli paramagnets. All the compounds show thermomagnetic irreversibility in the magnetically ordered state except GdNi4Ga.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Ferromagnetism; Crystal Field; Domain Walls; GdNi4Ga; SmNi4Ga
ID Code:24195
Deposited On:29 Nov 2010 10:14
Last Modified:06 Jun 2011 10:57

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