Similarities and differences between flux-creep states of superconductors with different current-voltage relations
Abstract
The influence of the current-voltage relation on the macroscopic electrodynamics of low- and high-temperature superconductors is discussed. The proposed analysis is based on the macroscopic description of the flux-creep states by power and exponential equations. The non-isothermal diffusion of the screening current was studied both during ramp rate and relaxation stages. It is shown that equivalency in the description of the flux-creep states depends on the type of current-voltage relation (CVR) and the temperature variation of critical-current term in CVR.
- Publication:
-
Physica C Superconductivity
- Pub Date:
- January 2004
- DOI:
- 10.1016/j.physc.2003.09.058
- Bibcode:
- 2004PhyC..401..296R
- Keywords:
-
- 74.60.Ge;
- 74.60.Jg;
- 74.25.Ha;
- Magnetic properties