Field-coupling topology design of general transformation multiphysics metamaterials with different functions and arbitrary shapes

Abstract

Metamaterials have been extensively studied due to their exciting properties, broad physics, and promising applications covering a vast range of science and engineering. However, most metamaterials only focus on a single physical field rather than multiphysics fields, which limits their interdisciplinary applications, and existing multiphysics metamaterials usually have the same functions. Here, we propose general arbitrary-shape transformation multiphysics metamaterials (TMM) based on a discretion-and-assembly strategy. As proof-of-concept, we designed several arbitrary-shape TMMs to achieve the robust manipulation of heat and electric current for different combinations of cloaking/concentrating functions. The recipe of the general TMM includes coupling the multiphysics anisotropic parameters, offering a general strategy to fabricate metamaterials, endowing the shape flexibility, and enabling the functionality robustness. Our study offers a general way to design TMMs with anisotropic material properties and paves a new way to design multiphysics metamaterials across multiple disciplines.