Title :
On the height of the pinning potential in hTc-superconductors
Author :
Reissner, Michael ; Steiner, Walter
Author_Institution :
Inst. fur Angewandte und Tech. Phys., Wien Univ., Austria
fDate :
3/1/1994 12:00:00 AM
Abstract :
The U(J) relation for different polycrystalline samples of the different classes of hTc superconductors was analysed by means of collective pinning theory and by taking into account realistic pinning potential shapes. All used models lead for the various classes to typical differences in the height of the activation barrier. To get information about the absolute value of the activation energy the change of pinning behaviour with current density has to be taken into account
Keywords :
critical current density (superconductivity); flux pinning; high-temperature superconductors; HTSC; activation barrier; collective pinning theory; current density; high Tc-superconductors; pinning potential; polycrystalline samples; Conductivity measurement; Creep; Current density; Equations; Interpolation; Potential energy; Potential well; Shape; Temperature dependence; Temperature distribution;
Journal_Title :
Magnetics, IEEE Transactions on
