In the late 1960s, Russian physicist Victor Veselago pondered whether two key electromagnetic properties could ever be negative. In conventional materials, permeability and permittivity are always ...

Maxwell’s electromagnetic theory, formulated 150 years ago, was one of the greatest breakthroughs in the history of physics, and continues to yield new results today. In a recent paper published in ...

In principle it should be possible to create a cloak that works for static magnetic fields – which are simply electromagnetic waves at zero frequency. In 2008 John Pendry and colleagues at Imperial ...

Superconductors have a permeability of 0 and ordinary ferromagnets have a permeability greater than 1. The difficulty is creating a material with both these properties at the same time.

Electromagnetic frequency shielding ... Cables with conductors to be protected from external EMP/EMI sources have an outer low-permeability shield braided over a high-permeability shield; ...