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首页> 外文期刊>Physica status solidi, B. Basic research >Einstein relationship and relaxation current in a tail at zero temperature
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Einstein relationship and relaxation current in a tail at zero temperature

机译：零温度下尾部的爱因斯坦关系和弛豫电流

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摘要

We outline results on the calculation of the transport coefficients for a non-equilibrium charge carrier moving in an arbitrary density of states. The equations for the calculation of the transport coefficients are completed by constitutive equations governing their dispersion, and an equation for the calculation of the diffusion propagator in the quasi-elastic limit. Our results show that the motion of the charge carrier is dispersive also at relatively large times. Furthermore, the Einstein relationship depends on the derivative of the density of states with respect to energy. Positive or negative relaxation currents are obtained if the density of states either increases or decreases with increasing energy. Furthermore, in order to compare our results with those obtained in the literature we focus on an exponential density of states. [References: 4]
机译：我们概述了以任意密度运动的非平衡电荷载体的传输系数的计算结果。输运系数的计算公式由控制其弥散的本构方程和准弹性极限内的扩散传播器的计算公式完成。我们的结果表明，电荷载流子的运动在相对较大的时间也是分散的。此外，爱因斯坦关系取决于状态密度相对于能量的导数。如果状态密度随能量增加而增加或减少，则将获得正或负弛豫电流。此外，为了将我们的结果与文献中的结果进行比较，我们集中在状态的指数密度上。 [参考：4]

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