NUMERICAL STUDIES ON THE DYNAMICS OF DISORDERED VORTEX LATTICE

• 作者: 曹义刚 焦正宽
• 来源期刊: 中国物理(海外版)
• 年，卷（期）: 2000,（1）
• 页码范围: 61-64
• 页数: 4页
• 分类号: 7460|0560
• 语种: 英文

摘要

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 elastic to plastic regimes is accompanied by maximum peaks in the differential curves of velocity-force dependence in the disordered vortex lattice.