The atoms inside a nanoparticle
Supplementary videos from the paper "Deciphering chemical order/disorder and material properties at the single-atom level" authored by Yongsoo Yang, Chien-Chun Chen, M. C. Scott, Colin Ophus, Rui Xu, Alan Pryor, Li Wu, Fan Sun, Wolfgang Theis, Jihan Zhou, Markus Eisenbach, Paul R. C. Kent, Renat F. Sabirianov, Hao Zeng, Peter Ercius & Jianwei Miao, published in Nature 542, 75–79 (02 February 2017) doi:10.1038/nature21042
http://dx.doi.org/10.1038/nature21042
Video 1: Progressive orthoslices along the [010] direction (y-axis), showing the 3D reconstructed intensity from 68 experimental ADF-STEM images. Each orthoslice integrates the intensity of a 1.86-Å-thick layer and individual Fe and Pt atoms can be clearly distinguished from their intensity contrast.
Video 2: 3D visualization of the different phases in the FePt nanoparticle. The nanoparticle consists of two large L12 FePt3 grains and seven smaller grains located between them, including three L12 FePt3 grains, three L10 FePt grains and a Pt-rich A1 grain.