Superconductivity at 86 K in LuBa2Cu3O7−δ thin films
R. Pinto, S. P. Pai, A. S. Tamhane, P. R. Apte, L. C. Gupta, R. Vijayaraghavan, K. I. Gnanasekar, H. V. Keer
DOI 10.1103/PhysRevB.46.14242 · Physical Review B
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Abstract
Superconductivity has been observed in thin films of LuBa2Cu3O7−δ, which otherwise does not form the 1:2:3 superconducting phase in bulk, presumably due to the small ionic radius of Lu. From this work, it is clear that the substrate influences the nucleation of the 1:2:3 superconducting phase in thin films. Results indicate that LuBa2Cu3O7−δ thin films with as good a quality as that achievable with YBa2Cu3O7−δ thin films can be realized; zero resistance transition temperature (Tc) of 86 K and critical-current density (Jc) of 5×105 A cm−2 at 77 K have been obtained.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| LuBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 86 | Pressure not reported | zero_resistance |
| LuBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 86 | Pressure not reported | zero_resistance |
| LuBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 86 | 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. | — | Pressure not reported | unknown |
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