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Thermal and Magnetic Properties of Integrable Spin-1 and Spin-3/2 Chains with Applications to Real Compounds

Batchelor, Murray; Guan, Xi-Wen; Oelkers, Norman; Foerster, Angela

Description

The ground state and thermodynamic properties of spin-1 and spin- 3/2 chains are investigated via exactly solved su(3) and su(4) models with physically motivated chemical potential terms. The analysis involves the thermodynamic Bethe ansatz and the high temperature expansion (HTE) methods. For the spin-1 chain with large single-ion anisotropy, a gapped phase occurs which is significantly different from the valence-bond-solid Haldane phase. The theoretical curves for the magnetization,...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
URI: http://hdl.handle.net/1885/77562
Source: Journal of Statistical Mechanics: Theory and Experiment
DOI: 10.1088/1742-5468/2004/10/P10017

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