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Structure diagram of deposition of lattice matching for two-layer Al atoms on the CoCrFeNi HEA surface: (a) three-dimensional image (two layers pink balls represent Al atoms); (b) front view; (c) top view of single-layer Al atomic deposition; (d) top view. Noted that the first layer and second layer Al atoms were shown as pink and saffron yellow in front view and top view, respectively.
