Anisotropic zero-resistance onset in organic superconductors
Abstract
We study the coexistence of superconductivity (SC) and density-wave state and reconcile various puzzling experimental data in organic superconductors (TMTSF) 2PF6 and (TMTSF) 2ClO4 . The anisotropic resistance drop above Tc 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-Tc cuprate or Fe-based ones.
- Publication:
-
Physical Review B
- Pub Date:
- January 2021
- DOI:
- 10.1103/PhysRevB.103.014519
- arXiv:
- arXiv:2007.14388
- Bibcode:
- 2021PhRvB.103a4519K
- Keywords:
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- Condensed Matter - Superconductivity;
- Condensed Matter - Mesoscale and Nanoscale Physics;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- 8 pages with Appendix and 5 figures