Magnetic Flux Motion of Superconducting Bi-Sr-Ca-Cu-O Films after Ion Irradiation
- 1 August 1990
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 29 (8A) , L1443
- https://doi.org/10.1143/jjap.29.l1443
Abstract
The temperature dependence of electrical resistance under applied magnetic fields was measured by the resistive method in polycrystalline Bi-Sr-Ca-Cu-O films after He ion irradiation at room temperature. The broadening of the transition temperature in the low resistance region was suppressed as the irradiation fluence increased. The effective activation energy was raised by ion irradiation. These changes are due to the presence of pinning centers produced by ion irradiation.Keywords
This publication has 7 references indexed in Scilit:
- Creation of strong pinning sites by x-ray irradiation for Gd1Ba2Cu3O7−x superconducting thin filmsApplied Physics Letters, 1990
- Effects of He Ion Irradiation on Superconductivity of Bi-Sr-Ca-Cu-O FilmsJapanese Journal of Applied Physics, 1989
- Thermally Activated Dissipation inPhysical Review Letters, 1988
- The Anisotropic Upper Critical Field of Single Crystal YBa2Cu3OxJapanese Journal of Applied Physics, 1987
- Temperature and Purity Dependence of the Superconducting Critical Field,. III. Electron Spin and Spin-Orbit EffectsPhysical Review B, 1966
- Theory of Flux Creep in Hard SuperconductorsPhysical Review Letters, 1962
- Critical Persistent Currents in Hard SuperconductorsPhysical Review Letters, 1962