1956 年 1956 巻 94 号 p. 66-77
The electronic structure of the diamond perfect crystal is investigated by the tight-binding approximation or LCAO-CO method, using the Slster's 2s, 2p functions of the carbon atom with N*=2, Z*=3.25, and including the over-lapping effect of atomic orbitals of the first nearest neigh-bours and the interaction of the first and second neighbours.