Superconducting gap in Bi2Sr2CaCu2O8
L. C. Brunel, Steven G. Louie, G. Martinez, S. Labdi, H. Raffy
DOI 10.1103/PhysRevLett.66.1346 · Physical Review Letters
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Abstract
Reflectivity measurements, at different fixed frequencies, have been performed on Bi2Sr2CaCu2O8 films as a function of temperature and magnetic field. Analysis of the data provides evidence for an order parameter 2Δ(0)≃3.3kBTc although the variation of this order parameter with temperature is significantly different from that predicted by the weak-coupling BCS model.
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. | 87 | Pressure not reported | zero_resistance |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 78 | Pressure not reported | zero_resistance |
| V3Si 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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