THE Y-HTSC RESISTIVE STATE DYNAMICS IN THE NON STATIONARY MAGNETIC FIELD

I M Golev,A V Sergeev,O V Kalyadin

doi:10.15518/isjaee.2015.05.007

Abstract

The paper carries out the research on the bulk ceramic high-temperature superconductors in resistive state and analyses two physical situations: dissipative motion of magnetic flux vortices throughout the whole sample, and localised in a thin near-surface layer. Hysteresis character of granular superconductor resistance in resistive state in case of change of external magnetic field has been detected. It is shown that a small alternating magnetic field ambiguously influences the resistance of HTSC in resistive state depending on the frequency due to the redistribution of magnetic flux vortices from weak pinning centres (from intergranular medium) to stronger centres (to granules).

Highlights

Military Training and Scientific Center of Air Forces “Air Force Academy n.a
The paper carries out the research on the bulk ceramic high-temperature superconductors in resistive state and analyses two physical situations: dissipative motion of magnetic flux vortices throughout the whole sample, and localised in a thin near-surface layer
It is shown that a small alternating magnetic field ambiguously influences the resistance of HTSC in resistive state dependpng on the frequency due to the redistribution of magnetic flux vortices from weak pinning centres to stronger centres

Summary

Introduction

Military Training and Scientific Center of Air Forces “Air Force Academy n.a. N.Y. The article has entered in publishing office 27.03.15. THE Y-HTSC RESISTIVE STATE DYNAMICS IN THE NON STATIONARY MAGNETIC FIELD Military Training and Scientific Center of Air Forces “Air Force Academy n.a. N.Y. Zhukovskiy and Y.A. Gagarin”

Results

Conclusion