Decay of trapped flux in the high-Tc superconducting compound Y1Ba2Cu3O6.5+δ
M. A. -K. Mohamed, W. A. Miner, J. Jung, J. P. Franck, S. B. Woods
DOI 10.1103/PhysRevB.37.5834 · Physical Review B
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Abstract
We have observed the decay of trapped flux in the superconducting compound Y1Ba2Cu3O6.5+δ with Tc=90 K at liquid-nitrogen temperature (77 K). Measurements were done on samples in the form of a disk, a ring, and a cut ring. The results showed similar logarithmic decays with time for all samples, in good agreement with Anderson’s flux-creep theory. This may indicate that our results were mainly due to microscopic vortex creep and not due to a macroscopic persistent current.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Y1Ba2Cu3O6.5+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
| Y1.2Ba0.8CuO3-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Y0.6Ba0.4CuO3-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La1.85Sr0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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