DocumentCode
949074
Title
The propagation characteristics of wave-guiding structures with very thin superconductors; application to coplanar waveguide YBa2 Cu3O7-x resonators
Author
Klopman, Boele B G ; Gerritsma, Gerrit J. ; Rogalla, Horst
Author_Institution
Dept. of Appl. Phys., Twente Univ., Enschede, Netherlands
Volume
41
Issue
5
fYear
1993
fDate
5/1/1993 12:00:00 AM
Firstpage
781
Lastpage
791
Abstract
The propagation characteristics of waveguiding structures with superconductors which are thin compared to the magnetic penetration depth are analyzed. The complex propagation constant is evaluated within the framework of the modified spectral domain method without the need for numerical calculations in the complex plane. Good agreement is found with the results of other methods. The numerical analysis is instrumental in deducing results for the penetration depth and the surface resistance of YBa2Cu3O7-x thin films on sapphire with a PrBa2Cu3O7-x buffer layer. Recent observations of a non-single-gap BCS temperature dependence are confirmed
Keywords
barium compounds; electric resistance; high-temperature superconductors; penetration depth (superconductivity); resonators; spectral-domain analysis; strip line components; superconducting microwave devices; superconducting thin films; waveguide theory; yttrium compounds; Al2O3; BCS temperature dependence; CPW; PrBa2Cu3O7-x buffer layer; YBa2Cu3O7-PrBa2Cu 3O7-Al2O3; complex propagation constant; coplanar waveguide; modified spectral domain method; numerical analysis; penetration depth; propagation characteristics; sapphire; surface resistance; very thin superconductors; wave-guiding structures; waveguiding structures; Buffer layers; Instruments; Magnetic analysis; Magnetic domains; Numerical analysis; Propagation constant; Superconducting magnets; Superconductivity; Surface resistance; Transistors;
fLanguage
English
Journal_Title
Microwave Theory and Techniques, IEEE Transactions on
Publisher
ieee
ISSN
0018-9480
Type
jour
DOI
10.1109/22.234511
Filename
234511
Link To Document