Internal flux dynamics and stray field-mediated coupling in the AC susceptibility response of Nb/Ni thin-film bilayers

2018 ◽  
Vol 51 (11) ◽  
pp. 115301
Author(s):  
Juan Pablo Badilla ◽  
Daniel Cornejo
Keyword(s):  
Thin Film ◽  
Ac Susceptibility ◽  
Stray Field ◽  
Flux Dynamics ◽  
Internal Flux

Harmonic Analysis of the AC Magnetic Response on Directionally Solidified YBaCuO Samples

1999 ◽  
Vol 13 (09n10) ◽  
pp. 1101-1106 ◽  
Author(s):  
M. Polichetti ◽  
S. Pace ◽  
A. Vecchione
Keyword(s):  
Magnetic Field ◽  
Diffusion Processes ◽  
Ac Susceptibility ◽  
Magnetic Response ◽  
Experimental Conditions ◽  
Flux Dynamics ◽  
Flux Flow ◽  
Flux Lines ◽  
Flux Dynamic ◽  
Ac Response

The transport properties and the dynamics of the flux lines have been investigated on YBaCuO melt textured by measuring the AC susceptibility harmonics as function of the temperature, at different frequencies and amplitudes of the AC magnetic field. The interpretation of the behavior of the experimental curves has been done by their comparison with the results obtained by critical state pictures and by simulations of the diffusion processes of the magnetic field which determine the AC response in presence of different regimes of flux dynamics. The temperature dependencies of the third harmonics of the AC susceptibility at different frequencies have been used in particular to determine what is the flux dynamic regime governing the magnetic response of melt textured samples in the different experimental conditions. A good qualitative agreement has been found between the experimental curves and the ones simulated by assuming that dissipation processes are a sequence of independent flux creep and flux flow events within a collective pinning framework.

Transient flux dynamics in optically irradiated YBCO thin-film switches

1995 ◽  
Vol 5 (2) ◽  
pp. 1371-1374 ◽  
Author(s):  
D. Gupta ◽  
W.R. Donaldson ◽  
A.M. Kadin
Keyword(s):  
Thin Film ◽  
Ybco Thin Film ◽  
Flux Dynamics

Flux dynamics and vortex phase diagram determined on a ring-shaped Tl2Ba2CaCu2O8 thin film

1999 ◽  
Vol 312 (3-4) ◽  
pp. 274-282 ◽  
Author(s):  
Hai-Hu Wen ◽  
Zhong-Xian Zhao ◽  
Shao-Lin Yan ◽  
Ling Fang ◽  
Ming He
Keyword(s):  
Thin Film ◽  
Phase Diagram ◽  
Flux Dynamics ◽  
Vortex Phase Diagram ◽  
Vortex Phase
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