Critical Currents, Proceedings of 6th INT Workshop, Cambridge 8-11 July 1991J. Evetts Like its predecessors, the 6th International Workshop on Critical Currents brought together many of the foremost researchers in this field for a dynamic exchange of views and information. The refereed papers from this exciting meeting have now been compiled in this volume so that all those with an interest in this important area of superconductivity can acquaint themselves with the latest developments. This book contains over 100 papers and the topics covered include the following: * pinning mechanisms * the critical state * magnetic phase diagrams * creep and flux flow * layer structures and granularity * fabrication and measurement techniques The papers presented here are reprinted from Superconductor Science and Technology (1992, Volume 5, Number 15), an Institute of Physics journal. |
Contents
thermal effects | S-9 |
S15 Critical current characteristics in meltprocessed YBaCuO superconductor | S-15 |
S25 Elastic energy thermal fluctuation and depinning of the vortex lattice in high T superconductors | S-25 |
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A/cm² activation angle anisotropy Appl applied field behaviour c-axis calculated centers ceramic characteristics compared cooled critical current density curves decrease defects dependence described determined direction discussed distribution doped effect electric energy estimated experimental experiments field dependence Figure flow flux flux creep frequency function geometry given grains higher hysteresis increase indicate irradiation irreversibility line lattice layers leads length Lett loops lower magnetic field material maximum measurements mechanism melt method normal observed obtained orientation oxygen parallel parameter peak perpendicular phase Phys Physica pinning pinning force planes plotted potential powder prepared present properties range reduced REFERENCES region resistivity respectively sample shown shows single crystals strong structure substrate Supercond superconducting surface tapes Technol temperature thickness transition transport University values vortex weak wire YBCO zero