Curie-temprature of a spin one xy ferromagnet with uniaxial anisotropy

Chaddha, G (1979) Curie-temprature of a spin one xy ferromagnet with uniaxial anisotropy. In: Solid State Communications, 30 (12). pp. 8111-14.

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Abstract

A spin one XY ferromagnet with uniaxial anisotropy has been investigated, using Green's function technique in random phase approximation (RPA). The Green functions associated with the anisotropy energy are treated without decoupling. A set of coupled equations have been obtained to find the critical temperature Tc and left angle bracket(SZ)2right-pointing angle bracket at Tc as function of the uniaxial anisotropy parameter D. Tc and left angle bracket(SZ)2right-pointing angle bracket at Tc are found to increase with D. The results are compared with the earlier results obtained in the Narath type of RPA.

Item Type:	Journal Article
Publication:	Solid State Communications
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Theoretical Studies (Ceased to exist at the end of 2003)
Date Deposited:	28 Dec 2010 06:37
Last Modified:	28 Dec 2010 06:42
URI:	http://eprints.iisc.ac.in/id/eprint/33239

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