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US 6,469,880 B1Granted
Reducing vortex densities and transporting vortices in superconductors
AssigneeUniversity of Notre Dame
InventorsAlbert-Laszlo Barabasi, Boldizsar Janko, Choongseop Lee, Imre Derenyi
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Abstract
A system and method for removing unwanted magnetic flux from a superconductor. A device can generate a controllable electric field potential using an asymmetric electric field potential to efficiently remove the magnetic flux in different directions in the superconductor.
Claims14
A method of substantially removing unwanted low density magnetic flux from a superconductor, comprising the steps of:
- generating a controllable flux vortex pinning potential;
- determining a desired flux vortex pinning potential optimized for removing unwanted low density magnetic flux from a superconductor;
- applying an AC electric field with optimized magnitude and frequency to the superconductor;
- and
- sweeping out the unwanted low density magnetic flux to substantially remove the unwanted magnetic flux.
2 more elements
A device for removing unwanted low density magnetic flux from a superconductor, comprising:
- a source of controllable flux vortex pinning potential;
- computer means to determine an applied flux vortex pinning potential attribute optimized to remove the unwanted low density magnetic flux from the superconductor;
- and
- a control system to apply to the superconductor the flux vortex pinning potential having the attribute for optimized removal of a substantial portion of the unwanted low density magnetic flux.
1 more element
Dependencies are inferred from the claim text.