SPATIALLY-RESOLVED CRITICAL-CURRENT LIMITATIONS IN YBA2CU3O7 MULTILAYER STRUCTURES

Authors
HOLLIN CA ABELL JS GOODYEAR SW CHEW NG HUMPHREYS RG
Citation
Ca. Hollin et al., SPATIALLY-RESOLVED CRITICAL-CURRENT LIMITATIONS IN YBA2CU3O7 MULTILAYER STRUCTURES, Applied physics letters, 64(7), 1994, pp. 918-920
Citations number
13
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
64
Issue
7
Year of publication
1994
Pages
918 - 920
Database
ISI
SICI code
0003-6951(1994)64:7<918:SCLIYM>2.0.ZU;2-9
Abstract
Current flow in YBa2Cu3O7/PrBa2Cu3O7 multilayer structures has been st udied using low temperature, scanning electron microscope, beam-induce d voltage contrast. Specialized data acquisition has been used to limi t thermalization effects and improve resolution. For both via hole con tacts and crossovers, the lowest critical current densities were found at steps where the superconductor tracks climb up or down over patter ned edges of the insulator.