Direct Observation of the Equilibrium Misalignment between Fluxoids and an Applied Magnetic Field Due to Anisotropy Effects in a Type-II Superconductor

1979 ◽  
Vol 42 (3) ◽  
pp. 191-195 ◽  
Author(s):  
D. K. Christen ◽  
P. Thorel
Keyword(s):  
Magnetic Field ◽  
Direct Observation ◽  
Applied Magnetic Field ◽  
Type Ii ◽  
Type Ii Superconductor

Calculations of the equilibrium configurations of flux lines in thin films of type II superconductors

1969 ◽  
Vol 47 (14) ◽  
pp. 1447-1460 ◽  
Author(s):  
C. Carter
Keyword(s):  
Magnetic Field ◽  
Thin Films ◽  
Applied Magnetic Field ◽  
Type Ii ◽  
Gibbs Function ◽  
Type Ii Superconductors ◽  
Flux Lines ◽  
Type Ii Superconductor ◽  
Equilibrium Configurations ◽  
London Theory

The London theory is used to calculate the equilibrium configurations of flux lines in thin films of a type II superconductor as a function of the applied magnetic field. Three possible geometrical configurations, of increasing complexity, are considered in detail, and the Gibbs function is minimized with respect to the parameters which define the configuration. The range of applied magnetic field for which each configuration is stable is determined, and hence B–H curves are constructed. A transition from one configuration to another causes a discontinuity in the B–H curve at values of H which roughly correspond to those found experimentally by Sutton.

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