三维拓扑Dirac声子晶体体棱对应

三维拓扑Dirac声子晶体体棱对应关系研究主要针对人工微结构声学材料的拓扑物态及其调控展开，设计、制备了三维声学拓扑半金属材料，其中包含一对受对称性保护的三维Dirac点，并基于声学实验观测并证实Dirac半金属不具有体-面对应关系，其拓扑特性直接反应在棱态上，具有体棱对应关系。主要记录了理论计算、仿真模拟，实验测量的二维面和一维棱场分布、以及投影能带等结果，数据量3.82GB。This study on the bulk-hinge correspondence of three-dimensional (3D) topological Dirac phononic crystals focuses on the topological states and their regulation of artificial microstructured acoustic materials. We designed and fabricated 3D acoustic topological semimetal materials containing a pair of symmetry-protected 3D Dirac points. Based on acoustic experiments, we observed and confirmed that this Dirac semimetal does not exhibit bulk-surface correspondence, while its topological properties are directly manifested in hinge states, thus possessing bulk-hinge correspondence. This dataset mainly records the results of theoretical calculations, numerical simulations, experimentally measured two-dimensional (2D) surface and one-dimensional (1D) hinge field distributions, as well as projected energy bands and other relevant data, with a total data volume of 3.82 GB.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于三维拓扑Dirac声子晶体的体棱对应关系研究，涉及人工微结构声学材料的拓扑物态调控。通过设计三维声学拓扑半金属材料，实验观测证实了其体棱对应特性，并提供了理论计算、仿真模拟和实验测量的相关数据，总数据量为3.82GB。