Title :
Relationship between the surface resistance and depairing current density of superconductors
Author :
Ohshima, Shigetoshi ; Kusunoki, Masanobu ; Inadomaru, Momoko ; Mukaida, Masashi ; Tanaka, Yasutomo ; Ihara, Hideo
Author_Institution :
Fac. of Eng., Yamagata Univ., Yonezawa, Japan
fDate :
6/1/2003 12:00:00 AM
Abstract :
We have examined the relationship between the surface resistance and the depairing current density of superconductors. From the two-fluid model and the relationship between the depairing current density and the thermodynamic critical field, we can show that the surface resistance is in inverse proportion to the depairing current density. We also experimentally examined the correlation between the surface resistance and the critical current density of YBCO thin films, and found that the surface resistance is in inverse proportion to the critical current density. The results mean that our theoretical analysis is suitable for predicting the correlation between the surface resistance and the critical current density.
Keywords :
Cooper pairs; barium compounds; critical current density (superconductivity); high-temperature superconductors; superconducting thin films; surface resistance; yttrium compounds; YBCO thin films; YBaCuO; critical current density; depairing current density; high temperature superconductors; surface resistance; thermodynamic critical field; two-fluid model; Critical current density; Current density; High temperature superconductors; Microwave theory and techniques; Superconducting films; Superconductivity; Surface resistance; Thermodynamics; Type II superconductors; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.812402
