Title :
Microwave response of Bi- and Tl-oxide superconductors
Author :
Chern, J.D. ; Guldeste, A. ; Lai, H.C. ; Aslam, S. ; Wu, D.H.T. ; Dew-Hughes, D. ; Goringe, M.J. ; Grovenor, C.R.M. ; Minokovic, B.
Author_Institution :
Oxford Univ., UK
fDate :
3/1/1993 12:00:00 AM
Abstract :
The measurement of the nonbolometric microwave response of a superconducting film may provide a method of detecting the coexistence of different phases of the film. Experimental results suggest that increased granularity of a film leads to a larger nonbolometric effect. The main mechanism of the nonbolometric microwave response is thought to be due to the interaction between microwave radiation and the intergranular weak links in the film.<>
Keywords :
barium compounds; bismuth compounds; calcium compounds; high-temperature superconductors; lead compounds; sputtered coatings; strontium compounds; superconducting thin films; thallium compounds; vapour deposited coatings; Bi/sub 2-x/Pb/sub x/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10/; Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8/; Tl/sub 2/Ba/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10/; film granularity; high temperature superconductor; intergranular weak links; magnetron sputtering; microwave radiation; nonbolometric microwave response; superconducting film; thermal evaporation; Granular superconductors; Magnetic field measurement; Magnetic films; Masers; Microwave measurements; Sputtering; Superconducting films; Superconducting thin films; Superconductivity; Temperature sensors;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
