Long-Distance Transfer and Routing of Static Magnetic Fields

TL;DR

This paper demonstrates a method to transfer and route static magnetic fields over long distances using transformation optics and hybrid superconducting-ferromagnet devices, with experimental validation showing significant improvements.

Contribution

It introduces a novel approach combining transformation optics and hybrid materials for long-distance static magnetic field transfer, validated by a proof-of-principle experiment.

Findings

Superconducting-ferromagnet hybrid device effectively transfers static magnetic fields.

Experimental results show 400% improvement over conventional methods.

Device successfully routes magnetic fields over 14cm distances.

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.