Table 2. Interatomic Distance to the Out-of-Plane Direction Deduced from Scanning Tunnel Electron Microscopy (STEM) Images of Bilayer and Trilayer Gr in Figure 4b and c, Respectivelya.
The interatomic distance of Gr and FePd layers was approximately 0.2 nm. The shorter interatomic distance compared with graphite (0.355 nm) indicates that the chemisorption-type van der Waals (vdW) force was bonded Gr and FePd. The lattice distance to the perpendicular direction of FePd is almost constant (approximately 0.38 nm).