Nonlinear magnetoelastic metamaterial using gravitational restoring force

In this paper we present a novel design and preliminary demonstration of a nonlinear magnetoelastic metamaterial. The structure consists of carefully engineered split rings with mechanical counterbalance allowing gravity to serve as the elastic restoring force countering the attraction between the currents induced on the split ring resonators suspended with mechanical degrees of freedom in the waveguide. Measurements show shift in resonant frequency of the structure due to changed mutual orientation of the rings in response to increased incident power.