Resistive behavior of high-Tc superconductors: Influence of a distribution of activation energies
R. Griessen
DOI 10.1103/PhysRevLett.64.1674 · Physical Review Letters
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Abstract
A model combining thermally activated motion of flux lines, viscous flux flow at high current density, and distribution of activation energies is shown to reproduce the characteristic features of current-voltage curves of high-Tc superconductors. In particular the recent data of Koch et al. and Zeldov et al. can be explained without invoking a continuous phase transition (freezing into a superconducting vortex-glass phase) or a logarithmic current dependence of the activation energy.
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 |
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