We propose that macroscopic objects built from negative-permeability metamaterials may experience resonantly enhanced magnetic force in low-frequency magnetic fields. Resonant enhancement of the ...

Cheers! Maxwell's electromagnetism extended to smaller scales Date: December 11, 2019 Source: Massachusetts Institute of Technology, Institute for Soldier Nanotechnologies ...

For example, an electromagnetic transformer requires a core, a doughnut of iron, thats properties are defined by its magnetic permeability.