Fig. 2: Characterization of hcp-Ru1Co.

a TEM image of hcp-Ru1Co. b HAADF-STEM image of hcp-Ru1Co. c 3D surface plots converted from the cyan square in (b). d High-resolution AC-HAADF-STEM image of hcp-Ru1Co. e Enlarged AC-HAADF-STEM image taken from the cyan square in (d). f The corresponding FFT pattern. g and h The simulated atomic model (g) and the electron diffraction pattern (h) of hcp-Co viewed along the [110] zone axis. i and j Intensity profiles from the orange rectangles in (d). k–n HAADF-STEM image (k) and corresponding elemental mappings (l–n) of hcp-Ru1Co. Source data for this figure are provided as a Source Data file.