Inhomogeneity,dynamical symmetry,and complexity in high-temperature superconductors:Reconciling a universal phase diagram with rich local disorder  

作　　者：GUIDRY Mike SUN Yang WU ChengLi 

机构地区：[1]Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China [2]Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200, USA [3]physics Department, Chung Yuan Christian University, ChungLi, Taiwan 32023, China

出　　处：《Chinese Science Bulletin》2011年第4期367-371,共5页

摘　　要：A model for high-temperature superconductors incorporating antiferromagnetism,d-wave superconductivity,and no double lattice-site occupancy can give energy surfaces delicately balanced between antiferromagnetic and superconducting order for specific ranges of doping and temperature. The resulting properties can reconcile a universal cuprate phase diagram with rich inhomogeneity,relate that inhomogeneity to pseudogaps,give a fundamental rationale for giant proximity eects and other emergent behavior,and provide an objective framework to separate essential from peripheral in the superconducting mechanism.A model for high-temperature superconductors incorporating antiferromagnetism, d-wave superconductivity, and no double lattice- site occupancy can give energy surfaces delicately balanced between antiferromagnetic and superconducting order for specific ranges of doping and temperature. The resulting properties can reconcile a universal cuprate phase diagram with rich inhomogeneity, relate that inhomogeneity to pseudogaps, give a fundamental rationale for giant proximity effects and other emergent behavior, and provide an objective framework to separate essential from peripheral in the superconducting mechanism.

关 键 词：高温超导体 不均匀性 相图 调和 复杂性 对称性 反铁磁性 D波超导 

分 类 号：O511[理学—低温物理]