Magnetic torque on a rotating superconducting sphere

Technical Report · Thu May 01 00:00:00 EDT 1975

OSTI ID:7325860

Holdeman, L B

The London theory of superconductivity is used to calculate the torque on a superconducting sphere rotating in a uniform applied magnetic field. The London theory is combined with classical electrodynamics for a calculation of the direct effect of excess charge on a rotating superconducting sphere. Classical electrodynamics, with the assumption of a perfect Meissner effect, is used to calculate the torque on a superconducting sphere rotating in an arbitrary magnetic induction; this macroscopic approach yields results which are correct to first order. With the same approach, the torque due to a current loop encircling the rotating sphere is calculated. (auth)

• Research Organization: National Aeronautics and Space Administration, Huntsville, Ala. (USA). George C. Marshall Space Flight Center
• OSTI ID: 7325860
• Report Number(s): N-75-24502; NASA-TR-R-443 M138
• Country of Publication: United States
• Language: English

Related Subjects

656102* -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CURRENTS
DIAMAGNETISM
ELECTRIC CURRENTS
ELECTRODYNAMICS
EQUATIONS
LONDON EQUATION
MAGNETIC FIELDS
MAGNETISM
MEISSNER-OCHSENFELD EFFECT
MOTION
RING CURRENTS
ROTATION
SPHERES
SUPERCONDUCTORS
TORQUE