Analysis of Electromagnetic Phenomena in HTc Superconductors

• Authors: J. Sosnowski
• Languages of publication: EN

Abstracts

EN

Unique electromagnetic properties, especially concerning recent observations of the giant remanent magnetic moment in HTc superconductors, require new approach to modeling these phenomena in the oxide ceramics. The present paper is devoted to the analysis of the influence of flux pinning on critical current and flux trapping in HTc superconductors. Modeling of the interaction between nanosized pinning centers and pancake vortices is presented, allowing to determine critical current density, taking into account elasticity forces of the vortices lattice. Ceramic structure of oxide superconductors was considered in trapped flux analysis. The mechanism of trapped flux generation was regarded as strongly related to vortex pinning and critical current phenomena.

Keywords

EN

74.25.Qt; 74.25.Sv

Discipline

• 74.25.Sv: Critical currents

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 1
• Pages: 269-274

Dates

published

2008-07

received

2007-11-06

Contributors

author

J. Sosnowski

• Electrotechnical Institute, Pożaryskiego 28, 04-703 Warsaw, Poland

References

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• 2. J. Mora, M. Carrera, X. Granados, J. Fontcuberta, S. Pinol, X. Obradors, J. Appl. Phys. 79, 6596 (1996)
• 3. V.L. Ginzburg, L.D. Landau, Zh. Eksp. Theor. Phys. 20, 1064 (1950)
• 4. J. Sosnowski, Superconductivity and Applications, Book Publisher of Electrotechnical Institute, Warsaw 2003, p. 1 (in Polish)

Identifiers

DOI

10.12693/APhysPolA.114.269