Indications of dx2-y2 superconductivity in the two dimensional t-J model

E. Dagotto; J. Riera

doi:10.1103/PhysRevLett.70.682

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Indications of dx2-y2 superconductivity in the two dimensional t-J model

E. Dagotto, J. Riera

DOI 10.1103/PhysRevLett.70.682 · Physical Review Letters

T1

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Abstract

Supercomputing correlations in the two dimensional t-J model at zero temperature are evaluated using numerical techniques. At the fermionic density 〈n〉∼1/2, strong signals of dx2-y2 superconductivity were observed in the ground state. These conclusions are based on a study of static pairing correlations, the Meissner effect, and flux quantization as indicators of superconductivity. A tentative phase diagram of the two dimensional t-j model is presented.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown