name:           silicon
rho_m:          2.3290 g/cm³
elf_file:       data/elf/df_Si.dat

band_structure:
    model:      semiconductor
    fermi:      7.83 eV
    band_gap:   1.12 eV
    affinity:   4.05 eV
    barrier:    12.62 eV

phonon:
    model:      single
    lattice:    5.43 Å
    single:
        c_s:    9040 m/s
        eps_ac: 9.2 eV

elements:
    Si: { count: 1, Z: 14, M: 28.0855 g/mol }

Add silicon material with legacy parameters
Add silicon material with legacy parameters

For comparison to old material files
