Topological surface Fermi arcs in the magnetic Weyl semimetal Co3Sn2S2

doi:10.1103/PhysRevB.97.235416

	Topological surface Fermi arcs in the magnetic Weyl semimetal Co3Sn2S2
	Xu, Qiunan 1; Liu, Enke 1,2; Shi, Wujun1,3 ; Muechler, Lukas 4; Gayles, Jacob 1; Felser, Claudia 1; Sun, Yan 1
	2018-06-11
发表期刊	PHYSICAL REVIEW B
ISSN	2469-9950
卷号	97 期号:23
发表状态	已发表
DOI	10.1103/PhysRevB.97.235416
摘要	Very recently, the half-metallic compound Co3Sn2S2 was proposed to be a magnetic Weyl semimetal (WSM) with Weyl points only 60 meV above the Fermi level E-F. Owing to the low charge carrier density and large Berry curvature induced, Co3Sn2S2 possesses both a large anomalous Hall conductivity and a large anomalous Hall angle, which provide strong evidence for the existence of Weyl points in Co3Sn2S2. In this work, we theoretically study the surface topological feature of Co3Sn2S2 and its counterpart Co3Sn2Se2. By cleaving the sample at the weak Sn-S/Se bonds, one can achieve two different surfaces terminated with Sn and S/Se atoms, respectively. The resulting Fermi-arc-related states can range from the energy of the Weyl points to E-F - 0.1 eV in the Sn-terminated surface. Therefore, it should be possible to observe the Fermi arcs in angle-resolved photoemission spectroscopy (ARPES) measurements. Furthermore, in order to simulate quasiparticle interference in scanning tunneling microscopy (STM) measurements, we also calculate the joint density of states for both terminals. This work should be helpful for a comprehensive understanding of the topological properties of these two magnetic WSMs and further ARPES and STM measurements.
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	National Natural Science Foundation of China from the National Science Fund for Excellent Young Scholars[51722106]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000434761900013
出版者	AMER PHYSICAL SOC
EI入藏号	20191906875564
EI主题词	Binary alloys ; Magnetism ; Photoelectron spectroscopy ; Scanning tunneling microscopy ; Topology
EI分类号	Magnetism: Basic Concepts and Phenomena:701.2 ; Combinatorial Mathematics, Includes Graph Theory, Set Theory:921.4
WOS关键词	INTERFERENCE ; SIGNATURES ; DISCOVERY ; SCHEMES ; MOTE2 ; PHASE ; BULK ; NBP
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/23090
专题	物质科学与技术学院_PI研究组_李刚组硬x射线自由电子激光装置项目
通讯作者	Sun, Yan
作者单位	1.Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany 2.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China 4.Princeton Univ, Dept Chem, Princeton, NJ 08544 USA
推荐引用方式 GB/T 7714	Xu, Qiunan,Liu, Enke,Shi, Wujun,et al. Topological surface Fermi arcs in the magnetic Weyl semimetal Co3Sn2S2[J]. PHYSICAL REVIEW B,2018,97(23).
APA	Xu, Qiunan.,Liu, Enke.,Shi, Wujun.,Muechler, Lukas.,Gayles, Jacob.,...&Sun, Yan.(2018).Topological surface Fermi arcs in the magnetic Weyl semimetal Co3Sn2S2.PHYSICAL REVIEW B,97(23).
MLA	Xu, Qiunan,et al."Topological surface Fermi arcs in the magnetic Weyl semimetal Co3Sn2S2".PHYSICAL REVIEW B 97.23(2018).