Magnetic levitation of thin superconducting disks

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We derive the analytical expressions describing the magnetic force experienced by a thin superconducting disk when being displaced in the presence of the magnetic field of a permanent magnet. The important demagnetization effects associated with the film geometry are taken into account. The model explains the characteristic features observed in the experiments. In particular, the results for the levitation force and its dependence on the film thickness are compared with published experimental data, showing good agreement.
Original languageEnglish
Pages (from-to)322-326
JournalPhysica C: Superconductivity and its Applications
Publication statusPublished - 20 Feb 1997


  • Applications of high-T c
  • Levitation
  • Magnetization
  • Superconductors


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