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Vortex penetration and flux relaxation with arbitrary initial conditions in non-ideal and ideal superconductors
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10.1063/1.3590148
/content/aip/journal/jap/109/10/10.1063/1.3590148
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/10/10.1063/1.3590148
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of Up , the activation energy of a vortex penetration process. Uc is pinning potential, is the activation energy at vanishing internal field, Ui is initial activation energy, Ue is equilibrium activation energy, Bi is initial internal field, and Be is equilibrium internal field. (a) Internal field dependence of activation energy. Up is an increasing function of internal field B. (b) Time dependence of activation energy. Up is an increasing function of time t.

Image of FIG. 2.
FIG. 2.

Schematic diagram of Ur , the activation energy of a flux relaxation process. Uc is pinning potential, is the activation energy at vanishing internal field, Ui is initial activation energy, Bi is initial internal field, and Bm is melting internal field. (a) Internal field dependence of activation energy. Ur is a decreasing function of internal field B. (b) Time dependence of activation energy. Ur is an increasing function of time t.

Image of FIG. 3.
FIG. 3.

(Color online) Simulation of vortex penetration into an ideal superconductor. The time dependence of an internal field is simulated with the equation: , where , , (see Eq. (52)). Here I choose a position away from the surface, where . Also, I choose and . In an ideal superconductor the pinning potential is therefore, we have .

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/content/aip/journal/jap/109/10/10.1063/1.3590148
2011-05-23
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Vortex penetration and flux relaxation with arbitrary initial conditions in non-ideal and ideal superconductors
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/10/10.1063/1.3590148
10.1063/1.3590148
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