拓扑优化
反向
拓扑绝缘体
量子
拓扑(电路)
工程设计过程
计算机科学
宽带
量子霍尔效应
物理
数学
量子力学
工程类
有限元法
机械工程
电气工程
几何学
电子
电信
热力学
作者
Jiachen Luo,Zongliang Du,Chang Liu,Ying Mei,Weisheng Zhang,Xu Guo
标识
DOI:10.1016/j.eml.2021.101276
摘要
Supplying topologically protected wave propagation immune to backscattering, design of novel materials analogous to topological insulators is of great interest in different physical systems. Most of the related studies relies on designer’s intuition or pre-knowledge, and is achieved through a trail-and-error process. In order to present a unified and rational design approach applicable to quantum valley/spin Hall insulators (QVHIs/QSHIs), a mathematical programming is proposed by combining the band theory and the Moving Morphable Components (MMC) topology optimization method. The key idea is to directly obtain a pair of unit cells with both reverse-ordered gapped Dirac cones and maximized working bandwidth through the optimization process. This design paradigm can be generalized for the systematic design of optimized 2D/3D topological insulators among different physical systems.
科研通智能强力驱动
Strongly Powered by AbleSci AI