CoTe2：具有强自旋涨落的量子临界Dirac金属
强关联电子
2022-08-30 v1
摘要
分隔弱铁磁相和顺磁相的量子临界点引发许多新奇现象。动力学自旋涨落不仅抑制长程序，还可导致不寻常的输运甚至超导。将量子临界性与拓扑电子性质结合提供了罕见而独特的机会。在此，通过第一性原理计算和磁、热及输运测量，我们表明正交晶系CoTe接近铁磁性，其似乎被自旋涨落所抑制。计算和输运测量揭示了节点Dirac线，使其成为接近量子临界性与Dirac拓扑的罕见组合。
引用
@article{arxiv.2208.13334,
title = {CoTe2: A quantum critical Dirac metal with strong spin fluctuations},
author = {Peter E. Siegfried and Hari Bhandari and Jeanie Qi and Rojila Ghimire and Jayadeep Joshi and Zachary T. Messegee and Willie Beeson and Kai Liu and Madhav Prasad Ghimire and Yanliu Dang and Huairuo Zhang and Albert Davydov and Xiaoyan Tan and Patrick M. Vora and Igor I. Mazin and Nirmal J. Ghimire},
journal= {arXiv preprint arXiv:2208.13334},
year = {2022}
}