DocumentCode
1526793
Title
Nonlinear surface impedance of Y-Ba-Cu-O films in a DC magnetic field
Author
Tsindlekht, M. ; Golosovsky, M. ; Davidov, D. ; Jacob, A.F.
Author_Institution
Racah Inst. of Phys., Hebrew Univ., Jerusalem, Israel
Volume
7
Issue
2
fYear
1997
fDate
6/1/1997 12:00:00 AM
Firstpage
1295
Lastpage
1298
Abstract
We study the microwave power dependence of the surface impedance of YBCO epitaxial films in a DC magnetic field up to 0.7 T. We demonstrate that the surface impedance of our films in the linear regime is dominated by weak links at low DC field and by vortices at high DC field. However, the microwave power dependence of the surface impedance arises mostly from the hysteretic RF vortex penetration.
Keywords
barium compounds; electric impedance; flux-line lattice; high-temperature superconductors; penetration depth (superconductivity); superconducting epitaxial layers; superconducting thin films; surface conductivity; yttrium compounds; 0 to 0.7 T; DC magnetic field; Y-Ba-Cu-O films; YBaCuO; epitaxial films; hysteretic RF vortex penetration; microwave power dependence; surface impedance; weak links; Electrical resistance measurement; Inductance; Magnetic fields; Magnetic films; Resonance; Superconducting films; Surface fitting; Surface impedance; Surface resistance; Yttrium barium copper oxide;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/77.620760
Filename
620760
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