Fig 1: Dielectric function of Si Crystal. (η=0.05 eV) [1]

Input files: (1) k30x30x30, (2) k50x50x50, and (3) k100x100x100. (spin=off)

DF files: (1) k30x30x30, (2) k50x50x50, and (3) k100x100x100. (spin=off)

Fig 2: Optical conductivity of Si Crystal. (η=0.05 eV)

CD files: (1) k30x30x30, (2) k50x50x50, and (3) k100x100x100. (spin=off)

Fig 3: Dielectric function of Si Crystal. (k=100x100x100, η=0.05 eV)

Input files: (1) spinoff, (2) spinon, and (3) noncollinear.

DF files: (1) spinoff, (2) spinon, and (3) noncollinear.

Fig 4: The dielectric function of VO2 (Rutile phase, η=0.05 eV, interband). [1,2]

Input files: (1) k8x8x8, (2) k32x32x32, (3) k48x48x48.

DF files: (1) k8x8x8, (2) k32x32x32, (3) k48x48x48.

Fig 5: The optical conductivity (xx) of Fe (bcc) with η=0.05 eV. [1,2]

Input files: (1) k50x50x50, (2) k100x100x100, and (3) k150x150x150.

Fig 6: The optical conductivity (xy) of Fe (bcc) with η=0.05 eV. [1,2]

CD files: (1) k50x50x50, (2) k100x100x100, and (3) k150x150x150.

Fig 7: The real and imaginary parts of optical conductivity of graphene at 300 K (η=0.05 eV, interband transitions).

Fig 8: The intraband and interband transitions of optical conductivity in a single layer graphene with shifted ChemP 0.4 eV, T=300 K, and η=0.05 eV ( gnuplot file ).

Fig. 9: Dielectric function ((xx+yy+zz/3)(ω)) of Au crystal (DFT+U, U=2.0 eV for 1st d orbital, non-collinear) in comparison with experimental data.