Creep Motion in Two-Dimensional Fully Frustrated Coulomb Gas Model
REN Qing-Bao1 , ZHOU Zhen-Chun1 , CHEN Ju2 , LUO Meng-Bo2
1 Department of Physics, Lishui University, Lishui 323000
2 Department of Physics, Zhejiang University, Hangzhou 310027
Creep Motion in Two-Dimensional Fully Frustrated Coulomb Gas Model
REN Qing-Bao1 ;ZHOU Zhen-Chun1 ;CHEN Ju2 ;LUO Meng-Bo2
1 Department of Physics, Lishui University, Lishui 323000
2 Department of Physics, Zhejiang University, Hangzhou 310027
关键词 ：
74.25.Qt ,
64.60.Ht ,
05.70.Ln
Abstract ： The creep motion in a two-dimensional fully frustrated square lattice Coulomb gas model with disorders is studied by using the Monte Carlo technique. The dependence of charge current density J on electric field E is investigated at low temperature T and at low E. The results show that the creep obeys the Arrhenius law J ～ C(T) exp [-U(E)/T]. The prefactor C(T) increases with the temperature in a power law relation with an exponent about 3.0. The energy barrier U(E) increases logarithmically with Ec/E as U(E) ～ U0 ln (Ec/E ) with Ec being the critical field at zero temperature.
Key words ：
74.25.Qt
64.60.Ht
05.70.Ln
出版日期: 2007-01-01
引用本文:
REN Qing-Bao;ZHOU Zhen-Chun;CHEN Ju;LUO Meng-Bo. Creep Motion in Two-Dimensional Fully Frustrated Coulomb Gas Model[J]. 中国物理快报, 2007, 24(1): 203-206.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2007/V24/I1/203
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2007, Vol. 24 
