Тип публикации: статья из журнала

Год издания: 2006

Идентификатор DOI: 10.1134/S1063783406020016

Аннотация: The influence of the structure of foamed polycrystalline bismuth-based superconductors on their critical currents and current-voltage characteristics is studied. It is found that superconducting foams have a fractal structure, and the fractal dimension of the boundary between the normal and superconducting phases is estimated. The Показать полностьюmagnetic and transport properties of superconducting foams are investigated, and the current-voltage characteristics are obtained in a wide range of currents. The effect of percolation phenomena on vortex pinning in a foamed superconductor is considered. The current-voltage characteristics of the superconducting foams at the beginning of the resistive transition are found to be in good agreement with a model in which a magnetic flux is assumed to be trapped in the fractal clusters of a normal phase.

Журнал: PHYSICS OF THE SOLID STATE

Выпуск журнала: Vol. 48, Is. 2

Номера страниц: 207-212

ISSN журнала: 10637834

Место издания: NEW YORK

Издатель: SPRINGER

• Balaev D.A. (Kirensky Institute of Physics,Siberian Division,Russian Academy of Sciences)
• Gokhfeld D.M. (Kirensky Institute of Physics,Siberian Division,Russian Academy of Sciences)
• Petrov M.I. (Kirensky Institute of Physics,Siberian Division,Russian Academy of Sciences)
• Popkov S.I. (Reshetnev Siberian State Aerospace University)
• Shaikhutdinov K.A. (Kirensky Institute of Physics,Siberian Division,Russian Academy of Sciences)
• Belozerova I.L. (Reshetnev Siberian State Aerospace University)
• Kashkina L.V. (Krasnoyarsk Stale University)
• Kuzmin Yu.I. (Ioffe Physicotechnical Institute,Russian Academy of Sciences)
• Michel C.R. (CUCEI Universidad de Guadalajara)

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