Anelastic relaxation in the high-Tc superconductor YBa2Cu3O7−x
G. Cannelli, R. Cantelli, F. Cordero, G. A. Costa, M. Ferretti, G. L. Olcese
DOI 10.1103/PhysRevB.36.8907 · Physical Review B
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Abstract
The first measurement of anelastic relaxation in a vibrating sample of YBa2Cu3O7−x is reported. A marked drop in the dissipation is observed below Tc, from which a strong electron-phonon interaction is inferred. It is found that the Bardeen-Cooper-Schrieffer theory with a gap of ΔKB=240 K can explain this drop. The data also suggest the occurrence of a phase transition at 235 K.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 94 | Pressure unresolved | onset |
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 86 | Pressure unresolved | zero_resistance |
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