Thermodynamic properties of a uniform and nonuniform spin-12 chain as a model for the oxalate-bridged Cu(II) complexes

Y.C. Li, K.L. Yao and Z.L. Liu

Physica A: Statistical Mechanics and its Applications, 2007, vol. 374, issue 1, 173-178

Abstract: By using the transfer matrix renormalization group method, we studied the magnetic and thermodynamic properties of the uniform and the nonuniform quantum Heisenberg spin chain with S=12. Compared with experiment results of some compounds, we investigated the effects of different interactions among the magnetic irons of the quantum system, and it is found that the ferro- and antiferromagnetic interaction affect the magnetic characteristics of the system and play important roles in determining the internal energy and the specific heat at finite temperature.

Keywords: Transfer matrix renormalization group; Internal energy; Specific heat (search for similar items in EconPapers)
Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:374:y:2007:i:1:p:173-178

DOI: 10.1016/j.physa.2006.07.008

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