Figure 5
From: Van der Waals epitaxy between the highly lattice mismatched Cu-doped FeSe and Bi2Te3
Energy calculations of Se atoms with respect to the bottom Te atomic position. (a) Top view image of the Bi2Te3 unit cell; the grey dashed lines show the positions of which 32 different sampling has been done for the Se bonding energy calculations; (b) relative energy variations along the three main crystallographic paths outlined in (a); the green dashed line shows the corresponding energy at room temperature (0.0257 eV).
