%0 Journal Article
%T Two-step depinning and reentrant superconducting phase of moving vortex lattice in disordered superconductors<br>无序超导体磁通运动的两次退钉扎效应和重新进入超导相
%A He Guo-Liang
%A He Yan-Wen
%A Zhao Zhi-Gang
%A Liu Mei
%A <br>何国良
%A 贺延文
%A 赵志刚
%A 刘楣
%J 物理学报
%D 2006
%I 
%X We developed a 3D flux_line lattice model with magnetic interactions between intraplane and interplane vortices to simulate the transport properties and the dynamic behavior of disordered anisotropic superconductors. We observed a double peak in the differential resistivity as the driving current increases, which corresponds to a two-step depinning in the vortex motion. Between the two peaks we also observed a reentering pinning phase. We also show that the transition from 2D plastic flow to 3D elastic flow of vortex motion is a recoupling transition which is associated with the double peak in differential resistivity. The increase of critical current of 3D-2D transition with the increasing of magnetic field (decreasing of relative interlayer coupling strength), indicates of a second peak effect.
%K 第Ⅱ类超导体
%K 磁通线格子
%K 钉扎
%K 峰值效应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=AAC6F055F68C7AF5&yid=37904DC365DD7266&vid=E514EE58E0E50ECF&iid=0B39A22176CE99FB&sid=C990359CEBD48A9E&eid=85C7135C065B9251&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=8