Inhomogeneity of the superconducting state and consequent diamagnetism above Tc: Application to the cuprates
Yu. N. Ovchinnikov, S. A. Wolf, V. Z. Kresin
DOI 10.1103/PhysRevB.60.4329 · Physical Review B
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Abstract
The inhomogeneity of a superconducting system gives rise to an interesting situation when at T>Tcres (Tcres is characterized by a relatively sharp resistive transition) one can observe an anomalously large diamagnetic moment. Here we focus on the case when the sample can be described as containing a nonuniform distribution of magnetic impurities and, as a consequence, by an inhomogeneous distribution of critical temperatures. The analysis is in good agreement with experimental data on overdoped cuprates.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Tl2Ba2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 15 | Pressure not reported | zero_resistance |
| Tl2Ba2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 15 | Pressure not reported | onset |
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