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Single crystal magnetic susceptibility of the quasi-one-dimensional antiferromagnet $KFeS_2$

Tiwary, Satish K and Vasudevan, S (1997) Single crystal magnetic susceptibility of the quasi-one-dimensional antiferromagnet $KFeS_2$. In: Solid State Communications, 101 (6). pp. 449-452.

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Abstract

The single crystal magnetic susceptibility of the quasi-one-dimensional antiferromagnet $KFeS_2$ is reported. The high temperature isotropic susceptibility is typical of a spin-l/2 Heisenberg chain. The intra- and inter- chain exchange constants are -44.7 K and 53.94 K, respectively. At 250 K, $KFeS_2$ exhibits a well defined transition to a three-dimensionally ordered antiferromagnetic state. The calculated perpendicular susceptibility at 0 K considering the zero point reduction in magnetisation for a S = l/2 one-dimensional chain from spin wave theory is close to the projected value obtained from the experimental data.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to elsevier.
Keywords: A.magnetically ordered materials;D.exchange and superexchange.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Anka Setty
Date Deposited: 23 Jan 2007
Last Modified: 19 Sep 2010 04:34
URI: http://eprints.iisc.ac.in/id/eprint/9594

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