[SiGeSn]
lattice_constant=5.658 Angstrom
Eg0_Gamma=0.89 eV
alpha_Gamma=0.582 meV K-1
beta_Gamma=296 K
Eg0_L=0.742 eV
alpha_L=0.48 meV K-1
beta_L=235 K
spin_orbit_splitting=0.29 eV
eff_mass_DOS_L=0.22 
eff_mass_DOS_X=0.22 
gamma1=13.35
gamma2=4.25
gamma3=5.69 
eff_mass_split_off=0.084
eff_mass_electron=0.12
eff_mass_hh_z=0.33
eff_mass_lh_z=0.043
interband_matrix_element=26.3 eV
c11=126 GPa
c12=44 GPa
c44=67.7 GPa
relative_dielectric_constant=16.2
electron_affinity=4.0 eV
electron_auger_recombination=1e-42
hole_auger_recombination=1e-42
radiative_recombination=6.4e-20