Fig. 5: Theoretical understanding of the formation of PtFe IMC.
From: In-situ atomic tracking of intermetallic compound formation during thermal annealing

a Calculated energy analysis of a Fe atom alloying with a Pt9 cluster. b Calculated energy analysis of a Fe atom alloying with a Pt45Fe14 cluster. CI-NEB: climbing image-nudged elastic band. c Binary phase diagrams of Pt-Fe. d Schematic illustration of the formation process of PtFe IMC. Source data are provided as a Source Data file.