Brief Communications

On a hollow superconducting sphere in a magnetic field

S. N. Sazonov

Ufa State Aviation Technical University

Abstract: A system consisting of a single-domain ferromagnetic ball surrounded by a spherical superconducting shell and current-carrying wires wound on the shell is considered. The magnetic moment of the superconductor is calculated in terms of the London theory, in particular, for the case when the sum of the magnetic moments of the ball and system of currents is equal to a null vector.

Received: 23.05.2012
Accepted: 03.09.2012

 English version: Technical Physics, 2013, 58:7, 1080–1082

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