Title :
On the superconducting suspension effect
Author_Institution :
Schlumberger-Doll Res., Ridgefield, CT, USA
Abstract :
A superconductor that expels magnetic flux perfectly (Meissner effect) is repelled by a magnet in any configuration. Yet, suspension of a high-temperature superconductor below a magnet has been demonstrated recently. It is accepted that flux pinning is the mechanism that is responsible for the observed attractive force. The author makes an approximation that is a gross exaggeration of flux pinning, under which the fields and forces are readily computed. The calculation shows why stable suspension can occur.<>
Keywords :
Meissner effect; flux pinning; high-temperature superconductors; magnetic levitation; Meissner effect; flux pinning; high-temperature superconductor; magnetic flux; superconducting suspension effect; Boundary conditions; Boundary value problems; Cooling; Flux pinning; High temperature superconductors; Magnetic fields; Magnetic flux; Magnetic forces; Magnetic levitation; Superconducting magnets;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.134778
