Logarithmic relaxation in the levitation force in a magnet-high T[sub c] superconductor system

Riise, A.B.; Johansen, T.H.
May 1992
Applied Physics Letters;5/4/1992, Vol. 60 Issue 18, p2294
Academic Journal
Examines the levitation force between a permanent magnet and a bulk YBCO superconductor subjected to motion induced step in the magnetic field. Connection of levitation force with time; Interpretation of the rate of decay based on thermally activated flux creep; Relation of the levitated magnet force to the bulk magnetization of the conducting material.


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