Metastable behavior of vortex matter in the electronic transport processes of homogenous superconductors

Authors

X. B. Xu, Nanjing University, China
Y. Liu, Nanjing University, China
H. Fangohr, University of Southampton, UK
L. Zhang, Nanjing University, China
Shichao Ding, University of WollongongFollow
Z. H. Wang, Nanjing University, China
S. L. Liu, Nanjing University, China
G. J. Wu, Nanjing University, China
H. M. Shao, Nanjing University, China

Publication Details

This article was originally published as: Xu, XB, Liu, Y, Fangohr, H, Zhang, L, Ding, SY, Wang, ZH, Liu, SL, Wu, GJ & Shao, HM, Metastable behavior of vortex matter in the electronic transport processes of homogenous superconductors, Physical Review B, 2006, 73, 214521. Copyright 2006 American Physical Society. The original journal can be found here.

Abstract

We study numerically the effect of vortex pinning on the hysteresis voltage-temperature (V-T) loop of vortex matter. It is found that different types of the V-T loops result from different densities of vortex pinning center. An anticlockwise V-T loop is observed for the vortex system with dense pinning centers, whereas a clockwise V-T loop is brought about for vortices with dilute pinning centers. It is shown that the size of the V-T loop becomes smaller for lower experimental speed, higher magnetic field, or weak pinning strength. Our numerical observation is in good agreement with experiments.