| Autor: |
Rakshit, Doyel, Mandal, Probhu, Sk, Tasaul, Ghosh, Ajay Kumar |
| Předmět: |
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| Zdroj: |
Journal of Superconductivity & Novel Magnetism; Jun2022, Vol. 35 Issue 6, p1421-1429, 9p |
| Abstrakt: |
Junction resistance (RN) as a function of temperature (T) in bulk superconducting NdBa2Cu3O7-δ (NBCO) has been determined following the de Gennes (dG) and Ambegaokar–Baratoff (AB) theories. A convergence of RN (T) obtained by two theories is not impossible at a T which is below the critical temperature. Variation of RN (T) corresponding to the intergranular region is very sensitive to the T-dependence of the gap function (Δ). Moderate range of RN reveals that the junctions are SNS in nature. Within the framework of the dG theory, the influence of the correlation length (ξN) on RN has also been investigated. Also, a moderate junction resistance and nonlinear current–voltage (IV) together reveal that a resistive bulk pinning network may be existing near the superconducting phase transition region. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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