Title :
Frequency dependence of surface resistance of bulk high temperature superconductor
Author :
Smith, P.A. ; Davis, Lara E. ; Button, T.W.
Author_Institution :
Dept. of Electr. & Electron Eng., Univ. of Manchester Inst. of Sci. & Technol., UK
Abstract :
The surface resistance of rods of bulk YBCO was measured in the frequency range 400 MHz to 4 GHz using a coaxial resonator at a temperature of 77 K. The surface resistance was not proportional to f2, as predicted by the two-fluid model, but was closer to f1.2.
Keywords :
barium compounds; electric resistance measurement; high-temperature superconductors; surface conductivity; yttrium compounds; 400 MHz to 4 GHz; 77 K; YBaCuO; coaxial resonator; frequency dependence; high temperature superconductors; microwave measurement; surface resistance; two-fluid model;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900954
