Effects of He Ion Irradiation on Superconductivity of Bi-Sr-Ca-Cu-O Films
- 1 June 1989
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 28 (6A) , L964
- https://doi.org/10.1143/jjap.28.l964
Abstract
The zero resistance transition temperatures T c (R=0) decrease remarkably from 92 K to 62 K in a Bi-Sr-Ca-Cu-O film irradiated with 400 keV He ions to a dose of 1.1×1019/m2 at room temperature. Resistivities above transition temperatures increase with increasing the dose, while transition temperatures T c (onset) are relatively unaffected by He ion irradiations. The decrease in the transition temperatures and the resistivity increase after low-temperature irradiations at 85 K are larger than those after room temperature irradiation.Keywords
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