Title :
Slotline ring resonator test method for high-T/sub c/ superconducting films
Author :
Kanamaluru, S. ; Li, M. ; Carroll, J.M. ; Phillips, J.M. ; Naugle, D.G. ; Chang, K.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A novel method of testing high-T/sub c/ superconducting (HTS) films by means of a slotline ring-like resonator is presented. This method does not require any metallic contact with the HTS films and ensures that the tests have quick turnaround times. Small samples can be tested very easily. The resonator circuit used has been studied analytically using Sonnet Inc.´s em software. The parameters of the HTS films are obtained by fitting the theoretical results to the experimental ones. YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// films on LaAlO/sub 3/ have been tested and the theoretical and experimental results are presented and compared. The results match very well. This method is useful for quick screening HTS films since no patterning of the film is required.<>
Keywords :
barium compounds; high-temperature superconductors; microwave measurement; superconducting thin films; waveguide components; yttrium compounds; LaAlO/sub 3/; Sonnet em software; YBa/sub 2/Cu/sub 3/O/sub 7/; high-T/sub c/ superconducting films; noncontact method; resonator circuit; slotline ring resonator test; small samples; turnaround times; Insulation; Niobium; Optical ring resonators; Slotline; Superconducting epitaxial layers; Superconducting films; Superconducting magnets; Superconducting microwave devices; Switches; Testing;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
