3D reconstruction of a million atoms by multiple-section local-orbital tomography  

通过多切片局域轨道层析成像实现百万原子的三维重构

作　　者：Liangze Mao Jizhe Cui Rong Yu 毛梁泽;崔吉哲;于荣

机构地区：[1]School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China [2]MOE Key Laboratory of Advanced Materials,Tsinghua University,Beijing 100084,China [3]State Key Laboratory of New Ceramics and Fine Processing,Tsinghua University,Beijing 100084,China

出　　处：《Science Bulletin》2025年第1期64-69,共6页科学通报(英文版)

基　　金：supported by Basic Science Center Project of the National Natural Science Foundation of China(52388201);the National Natural Science Foundation of China(51525102)。

摘　　要：Three-dimensional(3D)structural analysis is an important field in physical and biological sciences.There exist two groups of electron microscopy methods that are capable of providing 3D structural information of an object,i.e.,electron tomography and depth sectioning.Electron tomography is capable of resolving atoms in all three dimensions,but the accuracy in atomic positions is low and the object size that can be reconstructed is limited.Depth sectioning methods give high positional accuracy in the imaging plane,but the spatial resolution in the third dimension is low.In this work,electron tomography and depth sectioning are combined to form a method called multiple-section local-orbital tomography,or nLOT in short.The nLOT method provides high spatial resolution and high positional accuracy in all three dimensions.The object size that can be reconstructed is extended to a million atoms.The present method establishes a foundation for the widespread application of atomic electron tomography.

关 键 词：Atomic electron tomography Depth sectioning Local-orbital Atomic resolution 

分 类 号：TN16[电子电信—物理电子学] TP391.41[自动化与计算机技术—计算机应用技术]