Journal
PHYSICAL REVIEW B
Volume 98, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.98.014515
Keywords
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Funding
- Ministry of Education and Science of the Russian Federation
- RFBR [16-02-00522]
- Basis Foundation
- Russian Science Foundation [16-42-01100]
- Arconic Foundation
- [0033-2018-0001]
- Russian Science Foundation [16-42-01100] Funding Source: Russian Science Foundation
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We propose a model and derive analytical expressions for conductivity in heterogeneous fully anisotropic conductors with ellipsoid superconducting inclusions. This model and calculations are useful to analyze the observed temperature dependence of conductivity anisotropy in various anisotropic superconductors, where superconductivity onset happens inhomogeneously in the form of isolated superconducting islands. The results are applied to explain the experimental data on resistivity above the transition temperature T-c in the high-temperature superconductor YBa2Cu4O8 and in the organic superconductor beta-(BEDT-TTF)(2)I-3. The comparison of resistivity data and diamagnetic response in beta-(BEDT-TTF)(2)I-3 allows us to estimate the size of superconducting inclusions as d similar to 1 mu m.
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