Dynamical behaviors of quasi-one-dimensional vortex states: Possible applications to the vortex chain state

Article

关键词: MAGNETIC-FLUX PENETRATION;    SUPERCONDUCTING FILMS;    TWIN BOUNDARIES;    PERIODIC MEDIA;    LATTICES;    FLOW;    YBA2CU3O7-DELTA;    VORTICES;    ARRAY;    CHANNELS;   

DOI  :  10.1103/PhysRevB.66.172504

来源: SCIE

【 摘 要 】

We examine the motion of one-dimensional (1D) vortex matter embedded in a 2D vortex system with weak pinning using numerical simulations. We confirm the conjecture of Matsuda [Science 294, 2136 (2001)] that the onset of the temperature induced motion of the chain is due to an incommensuration effect of the chain with the periodic potential created by the bulk vortices. In addition, under an applied driving force we find a two stage depinning transition, where the initial depinning of the vortex chain occurs through solitonlike pulses. When an ac drive is added to the dc drive, we observe phase locking of the moving vortex chain.

【 授权许可】

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