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A New Phase Diagram for the t-J Model

Elisa Ercolessi·Pierbiagio Pieri·Marco Roncaglia
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Abstract

We study the so-called nonmagnetic phases (dimer and flux states) in the t-J model below half filling. We present a new phase diagram, at zero and finite temperature, that includes broad areas of phase coexistence (dimer-flux or flux-uniform), in accordance with experimental and numerical data on the possibility of separation into hole-rich and hole-poor regions. We also briefly comment on some techniques used in the literature to discuss phase separation in the t-J model.

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Elisa Ercolessi, Pierbiagio Pieri, Marco Roncaglia. 1996-10-23. A New Phase Diagram for the t-J Model. https://doi.org/10.1016/s0375-9601(96)00895-x

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