Critical current anisotropy in high-Tc superconductors
D. E. Farrell, M. M. Fang, N. P. Bansal
DOI 10.1103/PhysRevB.39.718 · Physical Review B
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Abstract
Using grain-aligned samples, we have investigated the anisotropy of the superconducting critical current in three different copper oxide superconductors. At low temperatures there are large anisotropy differences between the materials, but at higher temperatures we find that the anisotropy is both small and roughly material independent. This result suggests that a small intrinsic critical current anisotropy may exist in high-Tc superconductors.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La1.85Sr0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 34.5 | Pressure not reported | zero_resistance |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91 | Pressure not reported | zero_resistance |
| Tl2Ba2Ca2Cu3O10+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 118 | Pressure not reported | zero_resistance |
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