High-temperature reverse ac Josephson effect in YBa2Cu3O7
R. Munger, H. J. T. Smith
DOI 10.1103/PhysRevB.44.242 · Physical Review B
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Abstract
The reverse ac Josephson effect in single-phase polycrystalline YBa2Cu3O7 has been measured in the range 80<T<360 K. The temperature dependence was found to be of the form V=aebT, and the effect persisted up to 300 K. We also show that the partial superconductivity indicated by the reverse ac Josephson effect is not a product of superconducting fluctuations from the 90-K supeconductivity phase of YBa2Cu3O7. It is argued that the partial superconductivity is the property of small regions of inhomogeneous crystalline structure.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
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