EFFECT OF PROTON IRRADIATION ON THE CRITICAL-CURRENT AND RESISTANCE OF HIGH T-C GRAIN-BOUNDARY JOSEPHSON-JUNCTIONS

Authors
JACKSON EM WEAVER BD SUMMERS GP
Citation
Em. Jackson et al., EFFECT OF PROTON IRRADIATION ON THE CRITICAL-CURRENT AND RESISTANCE OF HIGH T-C GRAIN-BOUNDARY JOSEPHSON-JUNCTIONS, Applied physics letters, 64(4), 1994, pp. 511-513
Citations number
10
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
64
Issue
4
Year of publication
1994
Pages
511 - 513
Database
ISI
SICI code
0003-6951(1994)64:4<511:EOPIOT>2.0.ZU;2-N
Abstract
We have investigated the effects of defects on the critical current an d resistance of high T-c grain boundary Josephson junctions using irra diation with 2-MeV protons. Radiation-induced defects cause the critic al current (I-c) to decrease and the shunt resistance (R) to increase such that I(c)R alpha 1/R. The data are consistent with a tunneling ba rrier height increasing with fluence.