Compton profiles of NiO and TiO<sub>2</sub> obtained from first principles GWA spectral function

Compton profiles of NiO and TiO₂ obtained from first principles GWA spectral function

Khidzir S M^†,, Halid M F M, Wan Abdullah W A T

The spectral functions of k-points (in units of states/eV) along the directions of [101] for NiO (a) and [100] for TiO₂ (b). The Fermi momentum is situated along overlapping spectral functions which explains the curving below and above the Fermi break in NiO. A pile up of spectra in lower momenta explains the constant momentum distribution as seen in Fig. 1.