Organic superconductors: The Bechgaard salts and relatives
Organic superconductors: The Bechgaard salts and relatives
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DOI：
10.1016/j.physc.2015.02.030
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发表时间：
2015-07-15
影响因子：
1.7
通讯作者：
Brown, S. E.
中科院分区：
文献类型：
--
作者：
Brown, S. E.
有机导体最初被认为是实现高温超导的途径。虽然这一目标无法实现，但出现了一类材料，其中相关性和维度之间的相互作用，有时是几何挫折，导致了由磁场、压力和温度调节的惊人的相和现象的多样性。本文重点介绍了一类有机超导体，准一维贝高盐（TMTSF）(2)X和准二维化合物kappa-(BEDT-TTF)(2)X的超导和正常状态的物理性质。在这两种情况下，实验的优势表明超导性是节点的。同样，在温度/压力相图中，相关性的重要性是显而易见的，并且在超导转变温度以上，低能磁波动对正常状态性质的影响是实质性的。(C) 2015 Elsevier B.V.版权所有
Organic conductors were originally considered a route to achieving high temperature superconductivity. While that goal could not be met, what came to be was a class of materials in which the interplay between correlations and dimensionality, and sometimes geometric frustration, lead to a spectacular diversity of phases and phenomena that are tuned by magnetic field, pressure, and temperature. Highlighted here are the physical properties of the superconducting and normal states of the first family of organic superconductors, the quasi-one dimensional Bechgaard salts (TMTSF)(2)X, as well as the quasi-two dimensional compounds kappa-(BEDT-TTF)(2)X. In both cases, the preponderance of experiments indicate that the superconductivity is nodal. As well, the importance of correlations is evident in the temperature/pressure phase diagrams, and the influence of low-energy magnetic fluctuations over the normal state properties above the superconducting transition temperature is substantial. (C) 2015 Elsevier B.V. All rights reserved.