Critical state of the weakly coupled two-dimensional superconductor Bi2Sr2CaCu2O8
E. Rodríguez, M. F. Goffman, A. Arribére, F. de la Cruz, L. F. Schneemeyer
DOI 10.1103/PhysRevLett.71.3375 · Physical Review Letters
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Abstract
Transport measurements show that the critical current in the c direction, Jcc of Bi2Sr2CaCu2O8 single crystals increases with temperature for low temperature zero field cooled (ZFC) measurements. As a consequence, the c direction electrical resistance of the ZFC critical state, at a given dc current, is finite, goes to zero with increasing temperature, and becomes finite again at higher temperatures. The results are consistent with a loss of the c axis long range correlation induced by the critical current flowing in the ab planes, Jcab, and an increase of that correlation with temperature, as a consequence of the corresponding decrease of Jcab.
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. | 85.5 | Pressure unresolved | midpoint |
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