A new model, based on an asymptotic procedure for solving the spinor kinetic equations of carriers and phonons is proposed, which gives naturally the displaced Fermi-Dirac distribution function at the leading order. The balance equations for the carrier numbers, energy and momentum densities, plus the Poisson's equation, constitute now a system of nine equations. Moreover two equations for the evolution of the spin densities are added, which account fora general dispersion relation. Direct and Schockley-Reed-Hall (SRH) generation-recombination (gr) models are finally introduced, in order to calculate the gr rates.

中文翻译：

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自旋电子学的矩阵动力学方法中的世代重组模型

提出了一种基于渐近过程求解载流子和声子自旋动力学方程的新模型，该模型自然给出了位移的费米-狄拉克分布函数。载流子数，能量和动量密度的平衡方程，再加上泊松方程，现在构成了一个由9个方程组成的系统。此外，添加了两个自旋密度演化的方程，这说明了一般的色散关系。最终引入了Direct模型和Schockley-Reed-Hall（SRH）生成重组（gr）模型，以计算gr率。