Abstract
The analytical expressions for the vertical force experienced by a superconducting cylinder situated above a cylindrical permanent magnet are derived within the framework of the critical-state model. The force, with an appropiate normalization, depends on a single parameter, the penetration field of the superconductor, which is proportional to its critical-current density. The results are applied to calculate the vertical magnetic stiffness and damping, from which the conditions for achieving a stable equilibrium of the system and the characteristics of the hysteretic losses associated to small displacements of the superconductor are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 46-52 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 268 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 1 Sept 1996 |
Keywords
- Applications of high-T superconductors c
- Levitation
- Magnetization