Stability of magnetic tip/superconductor levitation systems

doi:10.1088/1674-1056/24/11/118404

Abstract The vertical stability of a magnetic tip over a superconducting material is investigated by using the critical state and the frozen image models. The analytical expressions of the stiffness and the vibration frequency about the equilibrium position are derived in term of the geometrical parameters of the magnet/superconductor system. It is found that the stability of the system depends on the shape of the superconductor as well as its thickness.

Keywords: superconducting ring magnetic tip stability critical state model

Received: 31 May 2015
Revised: 01 July 2015
Accepted manuscript online:

PACS:	84.71.Ba	(Superconducting magnets; magnetic levitation devices)
	74.25.Ha	(Magnetic properties including vortex structures and related phenomena)

Corresponding Authors: M. K. Alqadi
E-mail: malqadi@just.edu.jo

Cite this article:

M. K. Alqadi Stability of magnetic tip/superconductor levitation systems 2015 Chin. Phys. B 24 118404

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