2H-NbS2中驱动无序涡旋物质脱钉时的临界行为
超导电性
2012-06-25 v1 统计力学
摘要
我们报道了在2H-NbS2中驱动有序涡旋流动时观察到的异常堵塞现象。以更高的驱动力重新启动这些被堵塞的涡旋的运动，随后通过降低驱动力再次使其停止，揭示了围绕脱钉阈值的临界行为，表现为瞬态寿命的发散。这验证了近期一项模拟研究的预测，该研究还指出涡旋物质中的塑性脱钉与在经历扩散运动的剪切胶体背景下提出的随机组织概念之间存在对应关系。
引用
@article{arxiv.1204.1182,
title = {Critical behavior at de-pinning of a driven disordered vortex matter in 2H-NbS2},
author = {Gorky Shaw and Pabitra Mandal and S. S. Banerjee and A. Niazi and A. K. Rastogi and A. K. Sood and S. Ramakrishnan and A. K. Grover},
journal= {arXiv preprint arXiv:1204.1182},
year = {2012}
}
备注
Phys. Rev. B (in press, 2012). The paper has 14 pages of Text+ Refs. with 4 figures. (Note as some of the figure files are large in size, to enable faster download, the file size has been kept small and the figure resolution are low. The online version of the paper to appear in PRB will contain the higher resolution figures)