论文标题
抑制类似Peierls的固体中的基于嵌套的不稳定性
Suppression of Peierls-like, nesting-based instabilities in solids
论文作者
论文摘要
对晶格不稳定性的理解在材料科学中至关重要。著名的例子是一维金属的PEIERLS不稳定，以及在两个和三个维度上的强烈狭窄的费米表面。通过对频带理论中的H和LI链的分析，我们发现波形的Bloch波性质，如果涉及对相对原子态的强k依赖性杂交，则强烈抑制敏感性峰值和相关的不稳定性，因此对于搜索具有强对外部逆转材料的材料的搜索而言至关重要。
The understanding of lattice instabilities is of vast importance in material science. The famous example is the Peierls instability of one-dimensional metals and for strongly-nested Fermi surfaces in two and three dimensions. Through an analysis of H and Li chains in band theory, we find that the Bloch wave nature of the wavefunctions, if involving strong k-dependent hybridization of oppositeparity atomic states, strongly suppresses susceptibility peaks and associated instabilities and is thus essential to consider in searching for materials with strong responses to external perturbations.
