Year: 2025
Type: article
Abstract: Three-dimensional reconstruction of atomic structure, known as atomic electron tomography (AET), has found increasing applications in materials science. The AET has been limited to objects of very small size due to the challenges of obtaining accurate atomic positions for large objects, for which the projection approximation generally assumed in AET is no longer valid due to the evolution of the electron probe along the beam direction. To address these challenges, we have developed a method that represents atoms as local orbitals and implements a depth-dependent probe-object interaction. Compared to conventional tomographic methods, the accuracy of atomic positions is improved by more than a factor of three and provides a solution for the tomographic reconstruction of large objects.
Authors: Liangze Mao, Jizhe Cui, Rong Yu
Institution: Tsinghua University
Language: English
Subfield: Structural Biology
Domain: Life Sciences
Open Access status: green
Awards: G2430748209, G560898048
OpenAlex ID: W4407956719