Properties of a diagonal two-orbital ladder model of the iron pnictide superconductors

被引：24

作者：

Berg, E. ^{[1
,2
]}

Kivelson, S. A. ^{[2
]}

Scalapino, D. J. ^{[3
]}

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[2] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[3] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 17期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.81.172504

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study a diagonal two-orbital ladder model of the Fe-based superconductors using the density-matrix renormalization-group method. At half filling, we find a close competition between a "spin-striped" state and a noncollinear "spin-checkerboard" state, as well as significant nematic correlations. Upon finite hole or electron doping, the dominant pairing correlations are found to have A(1g) (S-wave) symmetry.

引用

页数：4

共 23 条

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