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本文在J.L.Birman方法的基础上,对布里渊区内跃迁和散射的选择定则,作了进一步的理论分析,在满足准动量守恒条件的情况下,提出了空间羣简约系数的比较简单的计算方法。并用这个方法计算了六角密积结构及纤维锌矿结构的空间羣简约系数,从而决定了这两个结构的布里渊区内跃迁和散射的选择定则。Based on the general methods for the reduction of direct products of space group irreducible representations developed by Birman, a simpler method of finding the wave vector selection rules is derived. The method is applied here to the hexagonal close-packed and the wurtzite space groups. The coupling coefficients for the reduction of the direct products of two space group irreducible representations are given explicitly.
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