Quantum Phase Diagram of an Exactly Solved Mixed Spin Ladder
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Batchelor, Murray; Guan, Xi-Wen; Oelkers, Norman; Ying, Zu-Jian
Description
We investigate the quantum phase diagram of the exactly solved mixed spin-(1/2,1) ladder via the thermodynamic Bethe ansatz (TBA). In the absence of a magnetic field the model exhibits three quantum phases associated with su(2), su(4), and su(6) symmetries. In the presence of a strong magnetic field, there is a third and full saturation magnetization plateaux within the strong antiferromagnetic rung coupling regime. Gapless and gapped phases appear in turn as the magnetic field increases. For...[Show more]
Collections | ANU Research Publications |
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Date published: | 2004 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/77493 |
Source: | Journal of Statistical Physics |
DOI: | 10.1023/B:JOSS.0000037225.79748.98 |
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