ELECTRON-IRRADIATION EFFECTS ON A LA1.85SR0.15CUO4 SINGLE-CRYSTAL

Authors
OKAYASU S KAZUMATA Y TANAKA I KOJIMA H
Citation
S. Okayasu et al., ELECTRON-IRRADIATION EFFECTS ON A LA1.85SR0.15CUO4 SINGLE-CRYSTAL, Physica. B, Condensed matter, 194, 1994, pp. 1881-1882
Citations number
3
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
194
Year of publication
1994
Part
2
Pages
1881 - 1882
Database
ISI
SICI code
0921-4526(1994)194:<1881:EEOALS>2.0.ZU;2-H
Abstract
We compared superconducting properties of a La1.85Sr0.15CuO4 single cr ystal between before and after electron irradiation. About 100 ppm poi nt-like defects are introduced into the crystal with the irradiation. Both irreversibility lines and hysteresis measurements indicate that t he irradiation decreases the superconducting currents flowing between CuO2 layers. The flux creep activation energy Ueff (J) is proportional to g(T)ln(J), where g(T)=(1-T/Tc)n.