| Original Articles |
|
|
|
|
Numerical Study on the Two-Dimensional Vortex System with Random Pinning |
| CAO Yi-gang;YU Ya-bin;JIAO Zheng-kuan |
| Department of Physics, Zhejiang University, Hangzhou 310027 |
|
| Cite this article: |
|
CAO Yi-gang, YU Ya-bin, JIAO Zheng-kuan 1999 Chin. Phys. Lett. 16 689-691 |
|
|
|
Abstract We study numerically the dynamic behavior of the two-dimensional vortex lattice, moving in a random pinning potential under the action of an external driving force. Different densities of randomly distributed pointlike pinning centers and different vortex-vortex interacting strength are considered. Then the elastic and plastic regimes are found to be dependent on the relation between the vortex-vortex and the vortex-pin interacting potentials. The critical driving force increases with increasing density of pinning centers and with decreasing of the vortex-vortex interacting strength. The simulated results are consistent with the recent experiments, and some of our results fall outside the region of validity of collective pinning theory.
|
| Keywords:
74.60.Ge
05.60.+w
05.70.Ln
|
|
|
Published: 01 September 1999
|
|
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
