Dynamic Behaviour of Vortex Matter, Memory Effect and Mittag－Leffier Relaxation

• 来源期刊: 中国物理快报（英文版）
• 学科: 物理学
• 年，卷（期）: 2001,（2）
• 页码范围: 269-271
• 页数: 3页
• 分类号: O4
• 语种: 英文

摘要

Using fractional Fokker-Planck equation and Langevin equation's Monte Carlo simulation, we find that when current density is less than critical current density, at the very beginning the motion for vortices is mainly within the pinning well with the typical relaxation time Tr. When time t is longer than Tr, the vortex glass will distort between two adjacent pining wells and will lead to memory effect which is lacking in the Mott insulator and pancake vortices. The inertial effect is not dominating as compared with the formation and growth of easy-flow channels. The random quenched disorder will lead to Mittag-Leffler relaxation.