From antiferromagnetism to d-wave superconductivity in the two-dimensional t-J model

被引:28
作者
Calandra, M
Sorella, S
机构
[1] Ist Nazl Fis Mat, I-34013 Trieste, Italy
[2] Scuola Int Super Studi Avanzati, I-34013 Trieste, Italy
关键词
D O I
10.1103/PhysRevB.61.R11894
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have found that the two dimensional t-J model, for the physical parameter range J/t= 0.4 reproduces the main experimental qualitative features of high-ir, copper oxide superconductors: d-wave superconducting correlations are strongly enhanced upon small doping and clear evidence of off-diagonal long-range order is found at the optimal doping delta approximate to 0.15. On the other hand, antiferromagnetic long-range order, clearly present at zero hole doping, is suppressed at small hole density with clear absence of antiferromagnetism at delta>-0.1.
引用
收藏
页码:11894 / 11897
页数:4
相关论文
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