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Phase diagram of the two-dimensional negative-UHubbard model by R. T. Scalettar; E. Y. Loh; J. E. Gubernatis; A. Moreo; S. R. White; D. J. Scalapino; R. L. Sugar; E. Dagotto is a Physics and Astronomy article available to read on EtoBox.

What is Phase diagram of the two-dimensional negative-UHubbard model about?

Theoretical arguments and numerical calculations are used to discuss the phase diagram of the twodimensional negative-^/ Hubbard model. Our results are consistent with (1) a vanishing transition temperature at half-filling but with a ground state having both superconducting and charge-density-wave long-range order, and (2) a Kosterlitz-Thouless transition at a finite temperature into a superconducting state with power-law decay of the pairing correlations away from half-filling.

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Author

R. T. Scalettar; E. Y. Loh; J. E. Gubernatis; A. Moreo; S. R. White; D. J. Scalapino; R. L. Sugar; E. Dagotto

Published

1989

Language

EN

Field

Physics and Astronomy (Physical Sciences)