Mathematical model of flux relaxation phenomenon
Rongchao Ma
TL;DR
This paper introduces a comprehensive mathematical model for flux relaxation in type-II superconductors, enabling analysis of experimental data and calculation of vortex activation energy without special conditions.
Contribution
It presents a novel series expansion of activation energy and a general formula for current decay, advancing the theoretical understanding of flux relaxation phenomena.
Findings
Accurate analysis of flux relaxation data from Bi-2212 superconductor
General formula for current decay behavior derived
Activation energy of vortex system calculated without special conditions
Abstract
The investigations on the flux relaxation phenomenon of a type-II superconductor are important because they provide the information about the flux pinning ability and current-carrying ability of the superconductor. However, a unified theory of flux relaxation is currently unavailable. Here I present a general mathematical model of the flux relaxation. In this model, I proposed a series expansion to the activation energy and derived a general formula for the current decay behavior. In the light of these formulas, I can analyze the experimental data on the current decay behavior and then calculate the activation energy of a vortex system without subjecting to any special conditions. The results are accurate for the current decay measurements from a superconductor
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.