Magnetic dissipation in high-Tc superconductors: Evidence for a vortex-glass-to-vortex-liquid transition
M. Giura, R. Marcon, E. Silva, R. Fastampa
DOI 10.1103/PhysRevB.46.5753 · Physical Review B
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Abstract
The experimental behaviors of the resistivity as a function of both magnetic field, ρT(H), and temperature, ρH(T), in Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O high-quality samples, are interpreted by means of a phenomenological theory based on two hypotheses: (i) the irreversibility line at zero frequency is the glass-to-liquid-vortex transition, (ii) the dissipation mechanism is that found by Ambegaokar and Halperin and applied by Tinkham to high-Tc superconductors. The results of the fits performed on the whole range of resistivity variation (five decades) give strong support to the glass model.
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. | — | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 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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