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Levitation of a small permanent magnet between superconducting YBa2Cu3O thin films

Grosser, R. ; Martin, A. ; Kus, O. ; Pechen, E. V. ; Schoepe, Wilfried


Abstract

A small permanent magnet (spherical shape, radius 0.1mm) is levitating inside a superconducting parallel plate capacitor made of YBCO thin films. The nonlinear damping of the translational oscillations of the magnet is investigated as a function of amplitude and temperature. The dissipation is found to be orders of magnitude lower than in bulk YBCO samples at small amplitudes. With increasing ...

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