SWITCHING PHENOMENA IN YBCO POINT CONTACTS

Citation
Lf. Rybalchenko et al., SWITCHING PHENOMENA IN YBCO POINT CONTACTS, Physica. C, Superconductivity, 224(1-2), 1994, pp. 38-42
Citations number
4
Categorie Soggetti
Physics, Applied
ISSN journal
09214534
Volume
224
Issue
1-2
Year of publication
1994
Pages
38 - 42
Database
ISI
SICI code
0921-4534(1994)224:1-2<38:SPIYPC>2.0.ZU;2-S
Abstract
Point contacts based on te HTSC YBa2Cu3Ox with low oxygen content (x=6 .75) have been investigated. It was shown that the reversible switchin g effects between strongly distinct states of a contact, which were re vealed earlier in point contacts based on similar samples with maximal oxygen concentration (x almost-equal-to 7.0), take place in this case as well. It was found that the reason for the switching effects obser ved is oxygen migration caused by the electric field applied to the co ntact.