INFLUENCE OF FILM GROWTH-CONDITIONS ON THE TRANSPORT-PROPERTIES OF YBA2CU3O7-DELTA STEP-EDGE JUNCTIONS

Authors
HILL FG GETTA M HEIN MA MULLER C PIEL H DAM B BEUVEN S SCHUBERT J ZANDER W
Citation
Fg. Hill et al., INFLUENCE OF FILM GROWTH-CONDITIONS ON THE TRANSPORT-PROPERTIES OF YBA2CU3O7-DELTA STEP-EDGE JUNCTIONS, Applied superconductivity, 5(7-12), 1997, pp. 249-254
Citations number
22
Journal title
Applied superconductivity → ACNP
ISSN journal
09641807
Volume
5
Issue
7-12
Year of publication
1997
Pages
249 - 254
Database
ISI
SICI code
0964-1807(1997)5:7-12<249:IOFGOT>2.0.ZU;2-M
Abstract
In order to investigate the influence of film growth conditions on the transport properties of step-edge junctions, YBa2Cu3O7-delta a films were deposited on high-quality substrate steps by DC-sputtering at two different substrate temperatures and by off-axis laser ablation. RSJ- like junction properties and a low (1 sigma)-spread of the critical cu rrent density J(c) (4.2 K) of 17% along one step were obtained for las erablated junctions. The transport properties of the differently prepa red junctions correlated with the microstructure of the step region. T his, in turn, might result from the large differences in Surface diffu sion during film growth. (C) 1998 Elsevier Science Ltd. All rights res erved.