Inhomogeneous Superconductivity in Organic and Related Superconductors

被引:27
作者
Agosta, Charles C. [1 ]
机构
[1] Clark Univ, Dept Phys, 950 Main St, Worcester, MA 01610 USA
来源
CRYSTALS | 2018年 / 8卷 / 07期
基金
美国国家科学基金会;
关键词
organic superconductors; inhomogeneous superconductors; FFLO; quasi 2D materials; FERRELL-LARKIN-OVCHINNIKOV; UPPER CRITICAL-FIELD; PENETRATION DEPTH; MAGNETIC-FIELDS; STATE; TEMPERATURE; CECOIN5; PHASE; HEAT; KAPPA-(BEDT-TTF)(2)CU(NCS)(2);
D O I
10.3390/cryst8070285
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Evidence of inhomogeneous superconductivity, in this case superconductivity with a spatially modulated superconducting order parameter, has now been found in many materials and by many measurement methods. Although the evidence is strong, it is circumstantial in the organic superconductors, scant in the pnictides, and complex in the heavy Fermions. However, it is clear some form of exotic superconductivity exists at high fields and low temperatures in many electronically anisotropic superconductors. The evidence is reviewed in this article, and examples of similar measurements are compared across different families of superconductors. An effort is made to find a consistent way to measure the superconducting energy gap across all materials, and use this value to predict the Clogston-Chandrasakhar paramagnetic limit H-p. Methods for predicting the existence of inhomogeneous superconductivity are shown to work for the organic superconductors, and then used to suggest new materials to study.
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页数:20
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