Novel electromagnetic effects in high-temperature superconductors

Macfarlane, J. C.; Driver, R.; Roberts, R. B.
September 1987
Applied Physics Letters;9/28/1987, Vol. 51 Issue 13, p1038
Academic Journal
We report the first observations at liquid-nitrogen temperatures of parametric inductance behavior, signal up-conversion, and the nondestructive read-out of persistent supercurrent states in a superconductor. These observations have been made using a toroidal transformer with a core of the high-temperature superconductor YBa2Cu3O6.8. The effects arise from the field-dependent behavior of the magnetic susceptibility of this superconductor.


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