The optical absorption expressed by the imaginary part of the dielectric tensorε2forα-g-B3N3C. The imaginary part of the dielectric tensor is averaged for four different directions. Three XC potentials including (a) LDA, (b) PBE, and (c) MBJ are shown in the calculations.
Li et al. Nanoscale Research Letters 2012 7:624 doi:10.1186/1556-276X-7-624