The Band Structure of CdSb

The band structure of crystalline CdSb has been calculated by the use of empirical-pseudopotential method in the single space group representation. Calculated band structures shown that both the bottom of the conduction band and the top of the valence band are on the symmetry line [100]. It is found that the lowest energy gap of 0.49 eV is indirect one from ∑ 4 to ∑ 1 on this line. Direct transition gaps are assigned by using the selection rules. The anisotropy of the effective mass at the top of the valence band is such that ( m h * ) a :( m h * ) b :( m h * ) c =1.60:3.35:1.00 and is in good agreement with the determined from the experimental from the experimental results of the Hall mobilities.