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Antiferromagnetism and superconductivity of the two-dimensional extended t-J model
2005
Low temperature physics (Woodbury, N.Y., Print)
The mechanism of high-temperature superconductivity (HTS) and the correlation between the antiferromagnetic long-range order (AFLRO) and superconductivity (SC) phases are the central issues of the study of HTS theory. SC and AFLRO of the hole-doped two-dimensional extended t J model are studied by the variational Monte Carlo method. The results show that SC is greatly enhanced by the long-range hopping terms t¢ and ¢¢ t for the optimal and overdoped cases. The phase of coexisting SC and AFM in
doi:10.1063/1.2008136
fatcat:l4gpktwvf5einhnqnzsh4k7tfm