Dynamic Behaviour of Vortex Matter, Memory Effect and Mittag--Leffler Relaxation
LIU Gang1,2 , HAN Ru-Shan1
1 Department of Physics, Peking University, Beijing 100871
2 China Institute of Atomic Energy, P.O. Box 275 (18),
Beijing 102413
Dynamic Behaviour of Vortex Matter, Memory Effect and Mittag--Leffler Relaxation
LIU Gang1,2 ;HAN Ru-Shan1
1 Department of Physics, Peking University, Beijing 100871
2 China Institute of Atomic Energy, P.O. Box 275 (18),
Beijing 102413
关键词 ：
74.60.Ge ,
05.10.Gg ,
05.10.Ln
Abstract ： 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.
Key words ：
74.60.Ge
05.10.Gg
05.10.Ln
出版日期: 2001-02-01
引用本文:
LIU Gang;HAN Ru-Shan. Dynamic Behaviour of Vortex Matter, Memory Effect and Mittag--Leffler Relaxation[J]. 中国物理快报, 2001, 18(2): 269-271.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2001/V18/I2/269
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