We report successful growth of millimeter-sized high quality single crystals of V3S4, a candidate topological semimetal belonging to a low-symmetry space group and consisting of only low atomic number elements. Using density functional theory calculations and angle-resolved photoemission spectroscopy, we show that the nonmagnetic phase of monoclinic V3S4 hosts type-II Dirac-like quasiparticles which opens a sizable gap due to spin orbit coupling, as well as theoretical multiple nodal lines that are eliminated also by spin orbit coupling. These results suggest that relativistic effects give rise to profound modifications of the topological properties even in compounds with low-weight elements.
@article{arxiv.2208.04586,
title = {Single crystal synthesis and low-lying electronic structure of V$_3$S$_4$},
author = {Yu-Jie Hao and Ming-Yuan Zhu and Xiao-Ming Ma and Chengcheng Zhang and Hongtao Rong and Qi Jiang and Yichen Yang and Zhicheng Jiang and Xiang-Rui Liu and Yupeng Zhu and Meng Zeng and Ruie Lu and Tianhao Shao and Xin Liu and Hu Xu and Zhengtai Liu and Mao Ye and Dawei Shen and Chaoyu Chen and Chang Liu},
journal= {arXiv preprint arXiv:2208.04586},
year = {2023}
}
Comments
19 Pages, 3 Figures. To be published in Journal of Alloys and Compounds