论文标题
有机超导体中各向异性零耐药性发作
Anisotropic zero-resistance onset in organic superconductors
论文作者
论文摘要
我们研究了超导率（SC）和密度波状态的共存，并调和有机超导体（TMTSF）中的各种令人困惑的实验数据，$ _ {2} $ pf $ _ {6} $ {6} $和（TMTSF）$ _ {2} $ clo $ $ $ $ $ _ {4} $ {4} $。在批量分析模型中，新生孤立的SC岛定性地描述了高于$ t_c $的各向异性电阻下降。但是，只有在考虑样品的有限尺寸和扁平针形时，才能解释观察到的各向异性SC发作。我们的结果铺平了一种估计远离样品表面的体积分数和SC岛典型尺寸的方法，并应用许多不均匀的超导体，包括高$ T_C $ CUPRATE或基于Fe的高级。
We study the coexistence of superconductivity (SC) and density-wave state and reconcile various puzzling experimental data in organic superconductors (TMTSF)$_{2}$PF$_{6}$ and (TMTSF)$_{2}$ClO$_{4}$. The anisotropic resistance drop above $T_c$ is qualitatively described by nascent isolated SC islands within a bulk analytical model. However, the observed anisotropic SC onset is explained only when the finite size and flat needle shape of samples is considered. Our results pave a way to estimate the volume fraction and the typical size of SC islands in far from the sample surface, and apply to many inhomogeneous superconductors, including high-$T_c$ cuprate or Fe-based ones.
