▎ 摘　　要

NOVELTY - An artificial electromagnetic metamaterial has a multilayer structure consisting of base layer, metal layer, topology material layer/graphene material layer, dielectric layer and oxide layer. USE - Artificial electromagnetic metamaterial (claimed). ADVANTAGE - Since the external electric field, temperature, and thickness of the topology material or graphene material are controlled, the dielectric coefficient and the surface resistivity of the topology material or graphene material are changed, such that the artificial electromagnetic metamaterial with the negative refraction index, of which the resonant frequency is tunable, is produced.