拓扑半金属EuCd$_2$As$_2$和EuCd$_2$Sb$_2$中磁漫散射的共振X射线散射研究
强关联电子
2020-07-15 v1
摘要
我们通过共振弹性X射线散射(REXS)在Eu 边研究了候选Weyl半金属EuCd (=As, Sb)中的磁关联。EuCdAs漫散射的温度和场依赖性提供了直接证据，表明Eu矩在远高于奈尔温度时表现出缓慢的铁磁关联。相比之下，同构EuCdSb顺磁相中的漫散射至少弱一个数量级。EuCdAs顺磁相中存在的铁磁关联可能产生短寿命的Weyl节点。
引用
@article{arxiv.2005.04952,
title = {Resonant X-ray scattering study of diffuse magnetic scattering from the topological semimetals EuCd$_2$As$_2$ and EuCd$_2$Sb$_2$},
author = {Jian-Rui Soh and Enrico Schierle and Da-Yu Yan and Hao Su and Dharmalingam Prabhakaran and Eugen Weschke and Yan-Feng Guo and You-Guo Shi and Andrew Boothroyd},
journal= {arXiv preprint arXiv:2005.04952},
year = {2020}
}