Title :
Proximity-coupled weak links in YBCO films
Author :
Wire, M.S. ; Simon, R.W. ; Luine, J.A. ; Daly, K.P. ; Coons, S.B. ; Lee, A.E. ; Hu, R. ; Burch, J.F. ; Platt, C.E.
Author_Institution :
TRW, Redondo Beach, CA, USA
fDate :
3/1/1991 12:00:00 AM
Abstract :
Measurements of SNS planar microbridges made from high-quality in situ sputtered YBCO films were made. The devices were fabricated using single superconducting films with a patterned gap bridged by sputter-deposited silver. A number of devices exhibit supercurrents and microwave-induced steps in the current-voltage characteristics. In the best devices the normal state resistance is consistent with expected values. The consequences of the anisotropy of YBCO and the effects of various fabrication techniques on device performance and yield are discussed
Keywords :
barium compounds; high-temperature superconductors; sputtered coatings; superconducting junction devices; superconducting thin films; yttrium compounds; Ag microbridges; SNS planar microbridges; YBa2Cu3O7; anisotropy; current-voltage characteristics; device performance; fabrication techniques; high temperature superconductors; microwave-induced steps; normal state resistance; patterned gap bridged; single superconducting films; Crystalline materials; High temperature superconductors; Inorganic materials; Silver; Space technology; Superconducting films; Superconducting materials; Superconducting microwave devices; Superconductivity; Yttrium barium copper oxide;
Journal_Title :
Magnetics, IEEE Transactions on
