DocumentCode
1200466
Title
10 GHz cylindrical cavity resonator for characterization of surface resistance of High Tc superconducting bulk and thin films
Author
Kumar, M. Jaya ; Kataria, N.D. ; Srivastava, G.P.
Author_Institution
Superconductivity Div., Nat. Phys. Lab., New Delhi, India
Volume
30
Issue
6
fYear
1994
fDate
11/1/1994 12:00:00 AM
Firstpage
4605
Lastpage
4607
Abstract
An accurate and simple measurement system incorporating a 10 GHz TE011 cylindrical cavity resonator has been established which is capable of determining the microwave surface resistance of superconducting film and bulk materials of dimension independent of cavity diameter. The advantage of this technique over the conventional end plate substitution method are discussed. The performance of the cavity as a function of temperature and surface resistance measurements on YBCO thin films of 1.0 cm×0.5 cm dimension as well as 0.5 cm diameter bulk samples are presented. The lowest surface resistance measured using this system is 2.5 mohms at 77 K for a thin YBCO film deposited on LaAl2O3 substrate
Keywords
barium compounds; high-temperature superconductors; superconducting cavity resonators; superconducting thin films; surface conductivity; yttrium compounds; 77 K; LaAl2O3 substrate; YBCO; YBa2Cu3O7; cavity resonator; end plate substitution method; high Tc bulk superconductor; microwave surface resistance; superconducting thin films; surface resistance; Cavity resonators; Electrical resistance measurement; Microwave measurements; Superconducting films; Superconducting materials; Superconducting thin films; Surface resistance; Tellurium; Temperature; Yttrium barium copper oxide;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.334163
Filename
334163
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