Long-Distance Transfer and Routing of Static Magnetic Fields
arXiv:1304.6300 · doi:10.1103/PhysRevLett.112.253901
Abstract
We show how the static magnetic field of a finite source can be transferred and routed to arbitrary long distances. This is achieved by using transformation optics, which results in a device made of a material with a highly anisotropic magnetic permeability. We show that a simplified version of the device, made by a superconducting-ferromagnet hybrid, also leads to an excellent transfer of the magnetic field. The latter is demonstrated with a proof-of-principle experiment where a ferromagnet tube coated with a superconductor improves the transfer of static magnetic fields with respect to conventional methods by a 400\% factor over distances of 14cm.
5 pages, 5 figures, and Supplementary Material; revised version
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