磁化方向可调的 kagome Weyl 线
强关联电子
2022-03-22 v1
摘要
Kagome 磁体为大量拓扑量子现象提供了迷人的平台。在此，利用角分辨光电子能谱，我们在 A-A 堆垛的 kagome 磁体 TbxGd1-xMn6Sn6 中展示了具有强面外色散的 Weyl 线。在富 Gd 一侧，由于 Kane-Mele 自旋轨道耦合、低位点对称性和面内磁序之间显著的协同作用，Weyl 线保持近乎自旋轨道无隙。在 Tb 替代下，由于磁重取向为面外磁序，kagome Weyl 线打开能隙。我们的结果说明了磁矩方向是 realization 不同三维拓扑相的有效调节旋钮。
引用
@article{arxiv.2203.10648,
title = {Magnetization-direction-tunable kagome Weyl line},
author = {Zi-Jia Cheng and Ilya Belopolski and Tyler A. Cochran and Hung-Ju Tien and Xian P. Yang and Wenlong Ma and Jia-Xin Yin and Junyi Zhang and Chris Jozwiak and Aaron Bostwick and Eli Rotenberg and Guangming Cheng and Md. Shafayat Hossain and Qi Zhang and Nana Shumiya and Daniel Multer and Maksim Litskevich and Yuxiao Jiang and Nan Yao and Biao Lian and Guoqing Chang and Shuang Jia and Tay-Rong Chang and M. Zahid Hasan},
journal= {arXiv preprint arXiv:2203.10648},
year = {2022}
}
备注
12 pages, 4 figures. Comments are welcome!