Possible twin-boundary effect upon the properties of high-Tc superconductors
M. M. Fang, V. G. Kogan, D. K. Finnemore, J. R. Clem, L. S. Chumbley, D. E. Farrell
DOI 10.1103/PhysRevB.37.2334 · Physical Review B
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Abstract
We have studied the field at which superconductivity nucleates in grain-aligned samples of Y1Ba2Cu3O7−δ very close to the transition temperature Tc. For the field parallel to the c axis and for temperatures within 2 K of Tc, the nucleation field is found to vary as (1-T/Tc)1/2. The data suggest that superconductivity localized near twin boundaries may exist at temperatures close to Tc. .AE
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Y1Ba2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91.7 | Pressure not reported | onset |
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