Chemical structure of CoPt NP

a) Fourier transform of the experimental HRTEM image of a CoPt cluster where the chemical L10 order is visible. (b) The [001] peak is the signature of the chemical order in the nanoparticle. c) Simulated HRTEM image of a perfectly ordered cluster.

From V. Dupuis et al. Phys.Chem.Chem.Phys., 2015, 17, 27996–28004