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Chinese Physics, 2000, Vol. 9(1): 61-64    DOI: 10.1088/1009-1963/9/1/012
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

NUMERICAL STUDIES ON THE DYNAMICS OF DISORDERED VORTEX LATTICE

Cao Yi-gang (曹义刚), Jiao Zheng-kuan (焦正宽)
Department of Physics, Zhejiang University, Hangzhou 310027, China
Abstract  Flow behavior of the driven two-dimensional vortex lattice is numerically studied with different densities of randomly distributed pointlike pinning centers. Different features in the curves of velocity-force dependence are found between the elastic and plastic regimes. Scaling fit between force and velocity above the critical driving force can be obtained in the elastic regime but fails in the plastic regime. Transition from the lastic to plastic regimes is accompanied by maximum peaks in the differential curves of velocity-force dependence in the disordered vortex lattice.
Received:  08 May 1999      Revised:  15 June 1999      Accepted manuscript online: 
PACS:  74.25.Ld (Mechanical and acoustical properties, elasticity, and ultrasonic Attenuation)  
  74.25.Op (Mixed states, critical fields, and surface sheaths)  
  74.25.Qt  
Fund: Project supported by the National Center of Research and Development on Superconductivity of China (Grant No. -A-5222).

Cite this article: 

Cao Yi-gang (曹义刚), Jiao Zheng-kuan (焦正宽) NUMERICAL STUDIES ON THE DYNAMICS OF DISORDERED VORTEX LATTICE 2000 Chinese Physics 9 61

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