Title :
Parallel plate resonators in YBa/sub 2/Cu/sub 3/O/sub 7/ bicrystal grain boundaries
Author :
Zhang, Y.M. ; Winkler, D. ; Brorsson, G. ; Claeson, T.
Author_Institution :
Dept. of Phys., Chalmers Univ. of Technol., Goteborg, Sweden
fDate :
6/1/1995 12:00:00 AM
Abstract :
Intrinsic properties, such as the London penetration depth /spl lambda//sub L/, and the surface resistance R/sub s/, can be estimated in high-T/sub c/ films by studying self-induced electromagnetic resonances (Fiske modes) in bicrystal grain boundaries. Grain boundaries, 4-30 /spl mu/m long and 0.2 /spl mu/m thick in YBa/sub 2/Cu/sub 3/O/sub 7/ made on yttria-stabilized zirconia 0-32/spl deg/ [001]-tilt bicrystals were investigated. Typical values obtained for /spl lambda//sub L/ and R/sub s/ (at approximately 200-400 GHz) are 110-170 nm, and 20-710 m /spl Omega/, respectively.<>
Keywords :
Josephson effect; barium compounds; bicrystals; grain boundaries; high-temperature superconductors; penetration depth (superconductivity); superconducting resonators; superconducting thin films; surface conductivity; yttrium compounds; 200 to 400 GHz; Fiske modes; London penetration depth; YBa/sub 2/Cu/sub 3/O/sub 7/; YBa/sub 2/Cu/sub 3/O/sub 7/ bicrystal grain boundaries; ZrO/sub 2/Y/sub 2/O/sub 3/; high-T/sub c/ films; parallel plate resonators; self-induced electromagnetic resonances; surface resistance; yttria-stabilized zirconia; Critical current; Fabrication; Grain boundaries; Magnetic fields; Magnetic hysteresis; Magnetic resonance; Pulsed laser deposition; Superconducting films; Temperature; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
