Reversible magnetic properties of c-axis-oriented superconducting Bi2Sr2Ca2Cu3O10
Qiang Li, M. Suenaga, Junho Gohng, D. K. Finnemore, T. Hikata, K. Sato
DOI 10.1103/PhysRevB.46.3195 · Physical Review B
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Abstract
Magnetization measurements on c-axis-oriented bulk superconducting Bi2Sr2Ca2Cu3O10 have been carried out with the magnetic field applied parallel to the c axis. Fitting the results to the variation model for magnetization suggested by Hao and Clem shows that the Ginzburg-Landau parameter κ is nearly constant for 74≤T≤86 K, with the value of 170 at 74 K, and slowly increases with temperature from ∼86 to ∼100 K. κ diverges in the vicinity of Tc. This unusual temperature dependence of κ(T) could come from extended fluctuation effects and a limitation of the Hao-Clem theory, which may fail to describe this extremely anisotropic Bi-based superconductor. By fitting the data with the value of κ equal to 170, the deduced values of some of the superconducting parameters are Hc(0)=10 600 Oe, ξ(0)ab=10.5±0.6 Å, λ(0)ab=1940±13 Å, dHc2/dT≃-3.68 T/K near Tc.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2Ca2Cu3O10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 107.5 | Pressure not reported | onset |
| Bi1.8Pb0.4Sr2Ca2.2Cu3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 107.5 | Pressure not reported | onset |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| 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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