Nodeless d-wave superconductivity in a quasi-one-dimensional organic superconductor under anion order
Nodeless d-wave superconductivity in a quasi-one-dimensional organic superconductor under anion order
复制标题
阴离子序下准一维有机超导体中的无节点 d 波超导
DOI：
10.1103/physrevb.61.r14936
复制
发表时间：
1999
影响因子：
3.7
通讯作者：
H. Shimahara
中科院分区：
文献类型：
--
作者：
H. Shimahara
提出了一种负离子有序准一维有机超导体中无节点d波超导的机制。结果表明，由于负离子有序引起的费米面分裂消除了费米面上d波能隙函数的线节点，在超导准粒子激发中出现了一个小的有限能隙.我们讨论了在准一维有机超导体（TMTSF）2ClO4中观察到的热导率和NMR弛豫速率的温度依赖性可以用小的能隙来解释。
We propose a mechanism of nodeless d-wave superconductivity in a quasi-one-dimensional organic superconductor under anion order. It is shown that split of the Fermi surfaces due to the anion order eliminates the line nodes of a d-wave gap function on the Fermi surfaces, and a small finite energy gap appears in the quasi-particle excitations of superconductivity. We discuss that temperature dependences of thermal conductivity and NMR relaxation rate observed in a quasi-one-dimensional organic superconductor (TMTSF)2ClO4 can be explained consistently by the small energy gap.