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 |
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Publication: | Solid State Communications |
Publisher: | Elsevier |
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 |
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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