Coexistence of s-wave superconductivity and antiferromagnetism -: art. no. 056401

被引：7
|
作者：
Feldbacher, M
Assaad, FF
Hébert, F
Batrouni, GG
机构：
[1] Univ Stuttgart, Inst Theoret Phys 3, D-70550 Stuttgart, Germany
[2] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany
[3] Univ Saarland, D-66041 Saarbrucken, Germany
[4] Univ Nice, Inst Nonlineaire Nice, F-06560 Valbonne, France
来源：
PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 05期
关键词：
D O I：
10.1103/PhysRevLett.91.056401
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the phase diagram of a new model that exhibits a first order transition between s-wave superconducting and antiferromagnetic phases. The model, a generalized Hubbard model augmented with competing spin-spin and pair-pair interactions, was investigated using the projector quantum Monte Carlo method. Upon varying the Hubbard U from attractive to repulsive, we find a first order phase transition between superconducting and antiferromagnetic states.
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页数：4
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