Anisotropic zero-resistance onset in organic superconductors
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2020
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| _version_ | 1866915039730991104 |
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| author | Kochev, Vladislav D. Kesharpu, Kaushal K. Grigoriev, Pavel D. |
| author_facet | Kochev, Vladislav D. Kesharpu, Kaushal K. Grigoriev, Pavel D. |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2007_14388 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Anisotropic zero-resistance onset in organic superconductors Kochev, Vladislav D. Kesharpu, Kaushal K. Grigoriev, Pavel D. Superconductivity Mesoscale and Nanoscale Physics Strongly Correlated Electrons 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. |
| title | Anisotropic zero-resistance onset in organic superconductors |
| topic | Superconductivity Mesoscale and Nanoscale Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2007.14388 |