PROPERTIES OF NORMAL-METAL SHUNTED YBCO BI-CRYSTAL JUNCTIONS

Authors
HAO L GALLOP J REED R MACFARLANE J ROMANS E
Citation
L. Hao et al., PROPERTIES OF NORMAL-METAL SHUNTED YBCO BI-CRYSTAL JUNCTIONS, Physica. C, Superconductivity, 282, 1997, pp. 2415-2416
Citations number
5
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
4
Pages
2415 - 2416
Database
ISI
SICI code
0921-4534(1997)282:<2415:PONSYB>2.0.ZU;2-M
Abstract
We present experimental results on YBCO thin film bi-crystal junctions in which additional metallic shunt resistors are added by in-situ thi n film evaporation of gold or silver. The current-voltage characterist ics have been measured, as well as the broad band noise in the system between 1 Hz and 100 kHz, using a HTS de SQUID as a low-noise preampli fier. The influence of the shunt resistors on the excess noise contrib utions is discussed and the measured shunt resistance results are comp ared with a resistive network model.