Interaction of a permanent magnet with a superconducting hollow cylinder

Journal Article · Fri Jun 01 00:00:00 EDT 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.344543· OSTI ID:6813441

Wojtowicz, P J ^[1]

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1. David Sarnoff Research Center, Subsidiary of SRI International, Princeton, New Jersey 08543-5300 (USA)

The Meissner-effect interaction of a small permanent magnet with a superconducting hollow cylinder has been investigated by solving the Laplace equation numerically using a finite-difference method. The calculations reveal the existence of stable equilibrium configurations for a range of shapes and sizes of the cylinder. The computed magnitude of the Hooke's law force constant is close to those measured for small magnets levitated above superconducting disks.

• OSTI ID: 6813441
• Journal Information: Journal of Applied Physics; (USA), Vol. 67:11; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
PERMANENT MAGNETS
MEISSNER-OCHSENFELD EFFECT
SUPERCONDUCTORS
CYLINDRICAL CONFIGURATION
FINITE DIFFERENCE METHOD
HOOKE LAW
LAPLACE EQUATION
LEVITATION
SHELLS
CONFIGURATION
DIFFERENTIAL EQUATIONS
EQUATIONS
ITERATIVE METHODS
MAGNETS
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
426001* - Engineering- Superconducting Devices & Circuits- (1990-)