Josephson junctions with hysteretic current voltage characteristics at high temperatures

Authors
McBrien, PF Hadfield, RH Booij, WE Moya, A Blamire, MG Tarte, EJ Clark, J Pegrum, CM
Citation
Pf. Mcbrien et al., Josephson junctions with hysteretic current voltage characteristics at high temperatures, IEEE APPL S, 9(2), 1999, pp. 3468-3471
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN journal
10518223 → ACNP
Volume
9
Issue
2
Year of publication
1999
Part
3
Pages
3468 - 3471
Database
ISI
SICI code
1051-8223(199906)9:2<3468:JJWHCV>2.0.ZU;2-6
Abstract
The properties of bicrystal Josephson junctions with external capacitors ar e reported. It was found that the hysteresis in the current voltage (IV) ch aracteristic was very sensitive to the wavelength of the Josephson oscillat ion in the dielectric and thermal noise suppression of the critical current . A McCumber parameter beta(C) of 1.2 at 65 K has been achieved. In additio n intrinsic grain boundary capacitance has been found to give a large beta( C) value of 9.6 at 4.2 K.