1. Vortex Properties of Nanosized Superconducting Strips with One Central Weak Link Under an Applied Current Drive.
- Author
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Peng, Lin and Cai, Chuanbing
- Subjects
- *
NANOPARTICLES , *CURRENT-drive heating , *VORTEX motion , *MAGNETIC fields , *ELECTRIC fields , *LANDAU theory , *FINITE element method , *ACTIVATION energy - Abstract
The static and dynamic properties of vortices in a nanosized superconducting strip with one central weak link (weakly superconducting region or normal metal) are investigated in the presence of external magnetic and electric fields. The time-dependent Ginzburg-Landau equations are used to describe the electronic transport and have been solved numerically by a finite element analysis. Anisotropy is included through the spatially dependent anisotropy coefficient $$\zeta $$ in different layers of the sample. Our results show that the energy barrier for vortices to enter a weak link is smaller than that for vortices to enter the superconducting layers. The magnetization shows periodic oscillations. With the introduction of the weak link, the period of oscillations decreases. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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