提高热电效率的微观机理
A microscopic mechanism for increasing thermoelectric efficiency
摘要：
本文研究了一维无序硬点气体中粒子和能量的耦合输运，数值结果表明热电优值ZT随系统尺寸的变化而变化。这一结果解释的微观机制，即局部平衡的特点是出现了一个广泛的固定的“修改麦克斯韦-玻尔兹曼速度分布”，宽度远大于粒子流的平均速度。
英文摘要：
We study the coupled particle and energy transport in a prototype model of interacting one-dimensional system: the disordered hard-point gas, for which numerical data suggest that the thermoelectric figure of merit ZT diverges with the system size. This result is explained in terms of a microscopic mechanism, namely the local equilibrium is characterized by the emergence of a broad stationary "modified Maxwell-Boltzmann velocity distribution", of width much larger than the mean velocity of the particle flow.
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