Phase separation in the two-dimensional t– J model

Phase separation in the two-dimensional t– J model

The power-Lanczos method, a Green's function Monte-Carlo simulation, is used to calculate the energies of the two-dimensional t– J model up to 122 sites. The phase boundary of phase separation of the model is then determined by the Maxwell construction. Our conclusion is that there is no phase...

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Veröffentlicht in:Physica. C, Superconductivity Superconductivity, 2001-11, Vol.364, p.178-181
Hauptverfasser: Shih, C.T., Chen, Y.C., Lee, T.K.
Format: Artikel
Sprache:eng
Schlagworte:
Phase separation
Power-Lanczos method
t– J model
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Zusammenfassung:The power-Lanczos method, a Green's function Monte-Carlo simulation, is used to calculate the energies of the two-dimensional t– J model up to 122 sites. The phase boundary of phase separation of the model is then determined by the Maxwell construction. Our conclusion is that there is no phase separation for J⩽0.4.
ISSN:0921-4534
1873-2143
DOI:10.1016/S0921-4534(01)00751-1