Long-Range Spin-Fluctuations and Superconductivity in Quasi-One-Dimensional Organic Compounds
Long-Range Spin-Fluctuations and Superconductivity in Quasi-One-Dimensional Organic Compounds
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准一维有机化合物中的长程自旋涨落和超导性
DOI：
10.1143/jpsj.58.1735
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发表时间：
1989
影响因子：
1.7
通讯作者：
H. Shimahara
中科院分区：
文献类型：
--
作者：
H. Shimahara
在准一维哈伯德模型中研究了反铁磁自旋涨落（AFSF）介导的超导性。数值计算了超导转变温度和序参数的动量依赖性。研究了长程（≫晶格常数）AFSF 的影响。将所得相图与有机超导体(TMTSF) 2 X 和(DMET) 2 X 的相图进行比较，理论与实验得到了一些定性的一致性。
The superconductivity mediated by antiferromagnetic spin-fluctuations (AFSF) is studied in the quasi-one-dimensional Hubbard model. The superconducting transition temperature and the momentum dependence of the order parameter are calculated numerically. An effect of the long-range (≫the lattice constant) AFSF is examined. The obtained phase diagram is compared with that of the organic superconductors (TMTSF) 2 X and (DMET) 2 X, and some qualitative agreements between the theory and experiments are obtained.