Stable thrust on a finite-sized magnet above a Meissner superconducting torus Articles uri icon

authors

  • PEREZ DIAZ, JOSE LUIS
  • DIEZ JIMENEZ, EFREN
  • VALIENTE BLANCO, IGNACIO
  • HERRERO-DE-VICENTE, J.

publication date

  • February 2013

issue

  • 6, 063907

volume

  • 113

International Standard Serial Number (ISSN)

  • 0021-8979

Electronic International Standard Serial Number (EISSN)

  • 1089-7550

abstract

  • Forces and torques exerted by a superconducting torus on a permanent magnet have been mapped. It is demonstrated that stable orbits exist. Moreover, provided that the magnet remains in any of these orbits, the first critical field in the superconductor is never overpassed and the superconductor remains in the Meissner state. The consequent absence of hysteresis makes these kinds of device perfect candidates for non-frictional bearings or gyroscopes.

subjects

  • Mechanical Engineering

keywords

  • ring; high temperature superconductors; magnetic materials; superconductivity; gyroscope; friction; maxwell equations; electrodynamics; finite-element analysis; transition metals; chemical elements