Anisotropic zero-resistance onset in organic superconductors

Article

关键词: CHARGE-DENSITY-WAVE;    TRANSPORT-PROPERTIES;    SINGLE-CRYSTALS;    RESISTIVITY;    COEXISTENCE;    COMPETITION;    PHASE;    ORDER;   

DOI  :  10.1103/PhysRevB.103.014519

来源: SCIE

【 摘 要 】

We study the coexistence of superconductivity (SC) and density-wave state and reconcile various puzzling experimental data in organic superconductors (TMTSF)(2)PF6 and (TMTSF)(2)ClO4. 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 far from the sample surface and apply to many inhomogeneous superconductors, including high-T-c cuprate or Fe-based ones.

【 授权许可】

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