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

X. B. Xu; Y. Liu; H. Fangohr; L. Zhang; S. Y. Ding; Z. H. Wang; S. L. Liu; G. J. Wu; H. M. Shao

doi:10.1103/PhysRevB.73.214521

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

X. B. Xu, Y. Liu, H. Fangohr, L. Zhang, S. Y. Ding, Z. H. Wang, S. L. Liu, G. J. Wu, H. M. Shao

DOI 10.1103/PhysRevB.73.214521 · Physical Review B

T1

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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.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown