** work in progress **
- plotting eigendisplacements of individual atoms onto a phonon dispersion
- multiprocess? larger systems are quite intensive but could just be memory issues...
- identify different sites and plot those, i.e. Octahedral vs Tetrahedral?
- plotting rotations vs displacements of polyhedra?
- GaAs - VASP, PBEsol, Phonopy Finite Differences (4x4x4 supercell), ENCUT 400eV, KPOINTS = 8x8x8
- ZnO - VASP, PBEsol, DFPT, ENCUT = 500eV, KPOINTS = 8x8x4