Unified theory of effects of vortex pinning and flux creep upon the rf surface impedance of type-II superconductors

1991 ◽  
Vol 67 (3) ◽  
pp. 386-389 ◽  
Author(s):  
Mark W. Coffey ◽  
John R. Clem
Keyword(s):  
Surface Impedance ◽  
Vortex Pinning ◽  
Flux Creep ◽  
Unified Theory ◽  
Type Ii ◽  
Type Ii Superconductors

Magnetic-field dependence of the surface impedance in the mixed state of type-II superconductors

1994 ◽  
Vol 49 (6) ◽  
pp. 4331-4333 ◽  
Author(s):  
V. A. Berezin ◽  
E. V. Il’ichev ◽  
V. A. Tulin ◽  
E. B. Sonin ◽  
A. K. Tagantsev ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Mixed State ◽  
Surface Impedance ◽  
Magnetic Field Dependence ◽  
Type Ii ◽  
Type Ii Superconductors

Flux Line Pinning by Large Normal Particles in Type-II Superconductors

1972 ◽  
Vol 50 (5) ◽  
pp. 421-427 ◽  
Author(s):  
R. I. Coote ◽  
J. E. Evetts ◽  
A. M. Campbell
Keyword(s):  
Phase Boundary ◽  
Flux Line ◽  
Experimental Results ◽  
Flux Creep ◽  
Type Ii ◽  
Line Lattice ◽  
Flux Line Lattice ◽  
Type Ii Superconductors ◽  
Flux Lines ◽  
Direct Summation

The pinning of flux lines by large normal particles has been investigated as a function of field and temperature. The results are compared with a model for the magnetic pinning interaction at a phase boundary. The problem of the summation procedure for individual pinning interactions is discussed and it is concluded that the distortion of the flux line lattice caused by large normal particles is large enough for a simple direct summation to apply. This conclusion is supported by the experimental results. The experimental results also indicate that Anderson flux creep is not significant in this type of pinning system.

A theory of thermally activated flux creep in nonideal type II superconductors

1989 ◽  
Vol 159 (6) ◽  
pp. 743-759 ◽  
Author(s):  
K. Yamafuji ◽  
T. Fujiyoshi ◽  
K. Toko ◽  
T. Matsushita
Keyword(s):  
Flux Creep ◽  
Type Ii ◽  
Type Ii Superconductors ◽  
Thermally Activated ◽  
Activated Flux

scholarly journals Peak Effect in the Critical Current of Type II Superconductors with Strong Magnetic Vortex Pinning

2008 ◽  
Vol 101 (14) ◽  
Author(s):  
X. B. Xu ◽  
H. Fangohr ◽  
X. N. Xu ◽  
M. Gu ◽  
Z. H. Wang ◽  
...  
Keyword(s):  
Critical Current ◽  
Peak Effect ◽  
Vortex Pinning ◽  
Magnetic Vortex ◽  
Type Ii ◽  
Type Ii Superconductors
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