INDICATIONS OF D(X2-Y2) SUPERCONDUCTIVITY IN THE 2-DIMENSIONAL T-J MODEL

被引：152

作者：

DAGOTTO, E

RIERA, J

机构：

[1] FLORIDA STATE UNIV,SUPERCOMP COMPUTAT RES INST,TALLAHASSEE,FL 32306

[2] FAC CIENCIAS EXACTAS ROSARIO,DEPT FIS,RA-2000 ROSARIO,ARGENTINA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.70.682

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Superconducting correlations in the two dimensional t-J model at zero temperature are evaluated using numerical techniques. At the fermionic density [n] approximately 1/2, strong signals of d(x2-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.

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页码：682 / 685

页数：4

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