  Circularly polarized electromagnetic wave impinging on a conducting ring
generates a circulating DC plasmonic current resulting in an Inverse Faraday
Effect in nanorings. We show that a large ring with periodically modulated
width on a nanoscale, smaller or comparable with the plasmonic mean free path,
supports plasmon energy bands. When a circularly polarized radiation impinges
on such a plasmonic ring, it produces resonant DC plasmonic current on a macro
scale resulting in a Giant Inverse Faraday Effect. The metamaterials comprised
of the concentric variable width rings (plasmonic disks) and stacked plasmonic
disks (plasmonic solenoids) amplify the generated constant magnetic field by
orders of magnitude.
