We present a simple relativistic exact 2-component (X2C) Hamiltonian that models two-electron picture-change effects using Lehtola’s superposition of atomic potentials (SAP) [S. Lehtola, J. Chem. Theo
Hartree potential function (LOCPOT files) for FAPbI3, MAPbBr3, andFaPbI3(0.875)MAPbBr3(0.125) computed with VASP for the special coordinates of these three compunds.
