论文标题
金属中的热运输和非机械力
Thermal Transport and Non-Mechanical Forces in Metals
论文作者
论文摘要
我们讨论对电子流体中热电器的贡献。基于牛顿的第二定律，其压力梯度的一个简单论点表明，热电器由热力学导数（即每个粒子的熵）给出，而不是独立的传输系数。该分辨率是由于质量电流和流体中的热电流之间的耦合而产生的熵力。我们还讨论并阐明了最近一篇论文的某些方面（Phys。V.B {\ bf 102}，214306（2020）），该方法提供了一种在低温极限中精确求解电子传输方程的方法。
We discuss contributions to the thermopower in an electron fluid. A simple argument based on Newton's second law with the pressure gradient as the force suggests that the thermopower is given by a thermodynamic derivative, viz., the entropy per particle, rather than being an independent transport coefficient. The resolution is the existence of an entropic force that results from a coupling between the mass current and the heat current in the fluid. We also discuss and clarify some aspects of a recent paper (Phys. Rev. B {\bf 102}, 214306 (2020)) that provided a method for exactly solving electronic transport equations in the low-temperature limit.
