We point out some problems with the previously-proposed phase diagram of the Z6 spin models. Consideration of the diagram near to the decoupling surface using both exact and approximate arguments suggests a modification which remedies these deficiencies. With the aid of a new parametrisation of the phase space, we study the models numerically, with results which support our conjectures.

Jan 1, 19990 citations

arXiv:cond-mat/9610172 · Physics Letters A

A new phase diagram for the t-J model

Elisa Ercolessi, P. Pieri, Marco Roncaglia

Published Feb 1, 1997• 5 citations

arXiv HTML PDF

DOI: 10.1016/s0375-9601(96)00895-x

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