Observation of the Reverse ac Josephson Effect in Y-Ba-Cu-O at 240 K
J. T. Chen, L. E. Wenger, C. J. McEwan, E. M. Logothetis
DOI 10.1103/PhysRevLett.58.1972 · Physical Review Letters
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Abstract
A two-step resistive transition, one beginning at 240 K and the other at 90 K, has been observed in Y-Ba-Cu-O compounds. The superconductivity, possibly in granular form, at both temperatures has been verified by means of the rf-to-dc conversion associated with the ac Josephson effect.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 94 | Pressure not reported | midpoint |
| Y1.8Ba0.2CuO4-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | onset |
| Y1.8Ba0.2CuO4-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 240 | Pressure not reported | onset |
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