Empirical scaling of the vortex glass line above 1 T for high-Tc superconductors of varying anisotropy
B. Lundqvist, A. Rydh, Yu. Eltsev, Ö. Rapp, M. Andersson
DOI 10.1103/PhysRevB.57.R14064 · Physical Review B
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Abstract
The resistive transition into a glassy vortex state in oxygen-deficient YBa2Cu3O7−δ twinned single crystals of varying anisotropy γ (8.7<~γ<~35) has been studied with an applied magnetic field along the crystallographic c axis. For B≳1T, the glass line is well described by the empirical relation Bg=B0[(1−T/Tc)/(T/Tc)]α, where α≈1 and B0≈1.85Φ0/(γd)2. The successful fit to this relation both below and above an alleged crossover in the solid vortex state has important consequences for the H−T phase diagram of high-temperature superconductors.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91.3 | Pressure not reported | onset |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 86.2 | Pressure not reported | onset |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 73.2 | Pressure not reported | onset |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 62.2 | Pressure not reported | onset |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 51.8 | Pressure not reported | onset |
| YBCO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 57 | Pressure not reported | unknown |
| YBCO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 48.5 | Pressure not reported | unknown |
| Tl2212 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 100 | Pressure not reported | unknown |
| Tl2212 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 102.5 | Pressure not reported | unknown |
| Bi2223 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 96 | Pressure not reported | unknown |
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