An experimental study of magnetic flux diffusion into superconducting tin and indium cylinders

1986 ◽  
Vol 65 (5-6) ◽  
pp. 325-351 ◽  
Author(s):  
K. Aswathy ◽  
G. Rangarajan ◽  
R. Srinivasan ◽  
B. K. Mukherjee
1978 ◽  
Vol 21 (1) ◽  
pp. 34 ◽  
Author(s):  
A. L. Cooper ◽  
D. L. Book
Keyword(s):  

1998 ◽  
Vol 8 (2) ◽  
pp. 62-68
Author(s):  
A.D. Havenhill ◽  
K.W. Wong ◽  
C.X. Fan
Keyword(s):  

1995 ◽  
Vol 09 (09) ◽  
pp. 1045-1065 ◽  
Author(s):  
A. GUREVICH

A review of recent results on nonlinear diffusion of magnetic flux in high-Tc superconductors is given. Making use of a universality of thermally-activated flux diffusion, one can formulate the problem of macroscopic flux dynamics in terms of directly measured quantities. A hierarchy of flux creep time-scales and their dependence on initial and boundary conditions is considered. The essential effect of the sample geometry on the flux creep dynamics is discussed for a thin plate in a parallel and perpendicular magnetic field, which corresponds to local and nonlocal regimes of nonlinear flux diffusion, respectively. Both transient and steady-state regimes of flux creep are discussed. Instabilities of flux diffusion in anisotropic superconductors are considered which are give rise to a dissipative transition of the uniform critical state to either static macrovortex structures or magnetic flux turbulence. Manifestations of nonlinear flux diffusion in observed macroscopic electrodynamics of high-Tc superconductors are discussed.


1989 ◽  
Vol 30 (12) ◽  
pp. 2947-2950
Author(s):  
David L. Book ◽  
Todd A. Brun
Keyword(s):  

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