Mass-spring model for elastic wave propagation in multilayered van der Waals metamaterials  

作　　者：Yabin JING Lifeng WANG Yuqiang GAO 

机构地区：[1]State Key Laboratory of Mechanics and Control for Aerospace Structures,Nanjing University of Aeronautics and Astronautics,Nanjing,210016,China

出　　处：《Applied Mathematics and Mechanics(English Edition)》2024年第7期1107-1118,共12页应用数学和力学（英文版）

基　　金：supported by the National Science Fund for Distinguished Young Scholars of China(No.11925205);the National Natural Science Foundation of China(Nos.51921003 and U2341230)。

摘　　要：Multilayered van der Waals(vdW)materials have attracted increasing interest because of the manipulability of their superior optical,electrical,thermal,and mechanical properties.A mass-spring model(MSM)for elastic wave propagation in multilayered vdW metamaterials is reported in this paper.Molecular dynamics(MD)simulations are adopted to simulate the propagation of elastic waves in multilayered vdW metamaterials.The results show that the graphene/MoS_(2)metamaterials have an elastic wave bandgap in the terahertz range.The MSM for the multilayered vdW metamaterials is proposed,and the numerical simulation results show that this model can well describe the dispersion and transmission characteristics of the multilayered vdW metamaterials.The MSM can predict elastic wave transmission characteristics in multilayered vdW metamaterials stacked with different two-dimensional(2D)materials.The results presented in this paper offer theoretical help for the vibration reduction of multilayered vdW semiconductors.

关 键 词：multilayered van der Waals(vd W)metamaterial molecular dynamics(MD) mass-spring model(MSM) dispersion relation transmission characteristic 

分 类 号：O347.41[理学—固体力学]