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- URN zum Zitieren dieses Dokuments:
- urn:nbn:de:bvb:355-epub-188234
- DOI zum Zitieren dieses Dokuments:
- 10.5283/epub.18823
Alternative Links zum Volltext:DOI
Zusammenfassung
The oscillations of a small magnetic sphere (radius 100 μm) levitated above a superconductor are investigated. Resonance frequencies between 300 Hz and 600 Hz are observed. At low amplitudes (≤1 gmm) the oscillator has Q values of about 106. At larger amplitudes both the resonance frequency and the damping become amplitude dependent. Nonlinear and hysteretic friction is attributed to vortex ...
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