Fig. 1.
Elasto-magnetic metamaterials composed of polymeric networks and interacting magnetic domains. (A) Interacting magnets are embedded in mechanical metamaterials with orthogonally aligned elliptical pores. The metamaterial structure is characterized by the ligament width, w0, and the semiminor and semimajor axes, a0 and b0. The magnets are magnetized through the diameter, with the color representing the two poles. The ith magnet is aligned at an angle θi between its magnetic moment and the y-axis. (B) Open and closed phases created by the repulsive and attractive magnetic domains, respectively (Scale bar, 10 mm). (C) Metamaterials with elliptical pores and attractive, neutral, and repulsive magnetic interactions (from Top to Bottom). (D) Metamaterials with circular pores and attractive, neutral, and repulsive magnetic interactions (from Top to Bottom).