Resistivity of high-temperature superconductors: Is the vortex state a liquid?
Sudip Chakravarty, Boris I. Ivlev, Yuri N. Ovchinnikov
DOI 10.1103/PhysRevLett.64.3187 · Physical Review Letters
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Abstract
We discuss thermally activated resistivity of strongly layered high-temperature superconductors such as Bi2Sr2CaCu2O8 in the limit in which the dominant pinning mechanism is the intrinsic pinning due to the layered structure. From a comparison of our theory with the experimental data we conclude that the vortex state of such superconductors must be disordered over a substantial range of parameters—a melted liquid. The magnetic field, the temperature, and the current dependence of the calculated activation energy are consistent with experiments.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| 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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