Restoration of superconducting properties of proton-implanted ceramic YBa2Cu3O7−x by annealing in oxygen
Katsuhiro Yokota, Takeshi Kura, Saichi Katayama, Mitsukazu Ochi, Mitsuaki Murakami, Akiyoshi Chayahara, Mamoru Satho
DOI 10.1103/PhysRevB.45.3098 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
500-keV protons were implanted into ceramic YBa2Cu3O7−x (Y-Ba-Cu-O) at doses of 1×1015 to 2×1017 H+ cm−2. The proton-implanted Y-Ba-Cu-O was annealed in oxygen at temperatures of 400°C to 700°C for 90 min to restore superconducting properties destroyed by proton implantation. The resistivities at a temperature of 100 K and the critical temperatures of the annealed proton-implanted Y-Ba-Cu-O depended on the implant dose of protons and the annealing temperature. The critical temperatures decreased as the resistivities at 100 K increased. A critical temperature of 91 K, higher than 87 K of as-sintered Y-Ba-Cu-O, was obtained for ceramic Y-Ba-Cu-O annealed at 500 °C for 90 min after implantation at an implant dose of 1×1017 H+ cm−2.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91 | Pressure not reported | zero_resistance |
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 87 | Pressure not reported | zero_resistance |
| H2.7YBa2Cu3O7-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Transport hysteresis of the oxide superconductor Y1Ba2Cu3O7−x in applied fields
similarity 0.96Y. J. Qian et al.
Source status unknown — claims are unverified
Modifications of the physical properties of the high-Tc superconductors YBa2Cu3O7−δ (0.1≤δ<0.7) by 3.5-GeV xenon ion bombardment
similarity 0.95D. Bourgault et al.
Source status unknown — claims are unverified
Role of calcium in suppressing the superconductivity of Y1−xCaxBa2Cu3O7−δ
similarity 0.95V. P. S. Awana & A. V. Narlikar
Source status unknown — claims are unverified
Search for Isotope Effect in Superconducting Y-Ba-Cu-O
similarity 0.95L. C. Bourne et al.
Source status unknown — claims are unverified
Electronic structure of high-Tc superconductors from soft-x-ray absorption
similarity 0.95D. D. Sarma et al.
Source status unknown — claims are unverified
Nonlinear electrodynamics in the granular superconductor YBa2Cu3O7: Experiments and interpretation
similarity 0.95C. D. Jeffries et al.
Source status unknown — claims are unverified