具有奇异散射体的费米液体中的奇异金属行为
强关联电子
2022-12-07 v2
摘要
最优掺杂与过掺杂铜基超导体的多种低温正常态性质，包括直流与光学输运响应，都异常到似乎与任何准粒子描述不一致。然而，我们通过显式构造表明，最显著的现象可在一个嵌入了局域“奇异散射体”的、具有常规准粒子描述的费米液体系统中得到解释。此类散射体可能源自与具有短程电荷序关联的电子玻璃态相关的“双能级系统”。
引用
@article{arxiv.2211.01390,
title = {Strange-metal behavior in a Fermi liquid with strange scatterers},
author = {Erez Berg and Gaël Grissonnanche and Steven A. Kivelson and Chaitanya Murthy and Akshat Pandey and B. J. Ramshaw and Boris Z. Spivak},
journal= {arXiv preprint arXiv:2211.01390},
year = {2022}
}
备注
Aspects of the proposed model which we had previously identified as "unnatural" appear to us now to be impossible to realize from any physically plausible microscopic origin. Accordingly, this paper has been withdrawn. We thank Patrick Lee and Chandra Varma for focusing our attention on the seriousness of these issues.