Magnetoelastic nonlinear metamaterials
  We introduce the concept of magnetoelastic metamaterials with electromagnetic properties depending on elastic deformation. We predict a strong nonlinear and bistable response of such metamaterials caused by their structural reshaping in response to the applied electromagnetic field. In addition, we demonstrate experimentally the feasibility of the predicted effect. 
Mikhail Lapine, Ilya V. Shadrivov, David A. Powell, and Yuri S.   Kivshar
physics.optics