标题： 密度波化合物中电子态的密度 显示英文标题

标题： Density of electronic states in density-wave compounds with imperfect nesting

摘要： 我们研究了在密度波（DW）状态下，简单二维紧束缚模型中不完美嵌套对电子性质的影响。 所讨论的模型反映了准一维金属的主要特征，在这些金属中会出现DW。 我们表明，不完美的嵌套会导致准粒子态密度中的异常奇异性，从而导致超导临界温度的强烈重整化。 我们还计算了正常态的电导率张量，并获得了与稀土三碲化物和其他许多DW材料实验数据的良好一致。 显示英文摘要

摘要： We study the effects of imperfect nesting in a simple 2D tight-binding model on the electronic properties in the density-wave (DW) state. The discussed model reflects the main features of quasi-1D metals, where the DW emerges. We show that an imperfect nesting leads to unusual singularities in the quasi-particle density of states, leading to a strong renormalization of the superconducting critical temperature. We also compute the conductivity tensor of the normal state and obtain a satisfactory agreement with the experimental data on rare-earth tritellurides and many other DW materials.