Antiferromagnetism and d-wave superconductivity in cuprates:: A cluster dynamical mean-field theory

被引：336

作者：

Lichtenstein, AI ^{[1
]}

Katsnelson, MI

机构：

[1] Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands

[2] Russian Acad Sci, Inst Met Phys, Ekaterinburg 620219, Russia

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.62.R9283

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present an approach to investigate the interplay of antiferromagnetism and d-wave superconductivity in the two-dimensional Hubbard model within a numerically exact cluster dynamical mean-field approximation. Self-consistent solutions with two nonzero order parameters exist in a wide range of doping level and temperatures. A linearized equation for the energy spectrum near the Fermi level has been solved. The resulting d-wave gap has the correct magnitude and k dependence, but some distortion compared to the pure d(x2-y2) superconducting order parameter due to the presence of underlying antiferromagnetic ordering.

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收藏

页码：R9283 / R9286

页数：4

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