Application of the Lifshitz theory to poor conductors

Comment on "Application of the Lifshitz theory to poor conductors" [arXiv:0809.3901]

Recent Letter by V. B. Svetovoy [Phys. Rev. Lett. v.101, 163603 (2008), arXiv:0809.3901] claims that the Lifshitz theory combined with spatially nonlocal dielectric permittivities is consistent with the experimental data and Nernst's theorem. We prove that these claims are incorrect. They are based on irregular comparison with the data and misinterpretation of relevant physical quantities.

Casimir-like tunneling-induced electronic forces

We study the quantum forces that act between two nearby conductors due to electronic tunneling. We derive an expression for these forces by calculating the flux of momentum arising from the overlap of evanescent electronic fields. Our result is written in terms of the electronic reflection amplitudes of the conductors and it has the same structure as Lifshitz's formula for the electromagnetically mediated Casimir forces. We evaluate the tunneling force between two semiinfinite conductors and between two thin films separated by an insulating gap. We discuss some applications of our results.

Lu-H-N中电阻率在近室温的骤升并非超导，而是金属到不良导体的转变

The near room-temperature upsurge of electrical resistivity in Lu-H-N is not superconductivity, but a metal-to-poor-conductor transition

本文通过可控实验重复出Lu-H-N近室温电阻骤变，并定量对比纯Lu金属态行为，证明该现象源于金属到不良导体的转变而非超导，从而否定了此前近常压室温超导的声称。

Ultralow Thermal Conductivity and Thermoelectric Properties of Bi4GeTe7 with an Intrinsic van der Waal Heterostructure

Ternary chalcogenides, having large crystalline unit cell and van der Waal stacking of layers, are expected to be poor thermal conductors and good thermoelectric (TE) materials. We are reporting that layered Bi4GeTe7, with alternating quintuplet-septuplet layers of Bi2Te3 and Bi2GeTe4, has an ultralow thermal conductivity, \k{appa}total 0.42 Wm-1K-1 because of high degree of anharmonicity as estimated from large Gruneisen parameter (γ 4.07) and low Debye temperature (θd 135 K). The electron dominated charge transport has been realized from the Seebeck coefficient, S - 82 uV/K, at 380 K, and Ha…

基于多方法数值模拟的 Li$_3$ClO 热输运的温度与空位浓度依赖性

Temperature- and vacancy-concentration-dependence of heat transport in Li$_3$ClO from multi-method numerical simulations

本研究结合第一性原理、机器学习与力场方法计算 Li$_3$ClO 热导率，揭示了非谐相互作用与扩散型缺陷对热输运及温度依赖性的关键作用，并提出了适用于广泛离子导体的理论解释。

混合离子电子阴极上离子导体浸润的氧还原路径演化的弛豫时间分布分析

Distribution of Relaxation Times analysis of evolution of Oxygen Reduction Pathways for ionic conductor infiltration on MIEC cathode

本研究采用弛豫时间分布（DRT）分析，探究SDC浸润STF阴极对SOFC氧还原反应的调控，实现过程解卷积，800℃时极化电阻低至0.04 Ω·cm²，为高性能空气电极设计提供依据。