Nodal plane and persistent spin texture in a Weyl semimetal without mirror symmetry

doi:10.1103/PhysRevB.101.125207

	Nodal plane and persistent spin texture in a Weyl semimetal without mirror symmetry
	Shi, Wujun1 ; Li, Gang1,2
	2020-03-30
发表期刊	PHYSICAL REVIEW B
ISSN	2469-9950
EISSN	2469-9969
卷号	101 期号:12
发表状态	已发表
DOI	10.1103/PhysRevB.101.125207
摘要	By utilizing symmetry analysis and electronic structure calculations, we investigated the low-temperature orthorhombic phase of Ag2Se in SG 17. In addition to the discovery of a nodal plane at k(z) = pi protected by the joint operation of time reversal (T) and the twofold screw rotation S-2z, we found 24 Weyl points mainly residing at the k(y) = 0 plane with notable Fermi arc and large quasiparticle interference pattern (QPI). Due to the absence of mirror symmetry, a pair of Weyl points with opposite chirality reside at different binding energies, which makes this system an excellent material candidate for realizing the novel chiral anomaly related phenomenon, such as the quantized circular photogalvanic and the chiral magnetic effects. Furthermore, we also reveal the striking spin textures at k(z) = pi plane which demonstrates, in a large region of the surface Brillouin zone, a direction-selective spin polarization, which has a strong implication to spintronic applications.
关键词	Binding energy Electronic structure Mirrors Selenium compounds Spin polarization Temperature TexturesElectronic structure calculations Interference patterns Magnetic effects Material candidate Orthorhombic phase Spintronic applications Surface Brillouin zones Symmetry analysis
URL	查看原文
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA18010000]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000522160500003
出版者	AMER PHYSICAL SOC
EI入藏号	20201608476399
EI主题词	Binding energy ; Electronic structure ; Mirrors ; Selenium compounds ; Spin polarization ; Temperature ; Textures
EI分类号	Thermodynamics:641.1 ; Optical Devices and Systems:741.3 ; Physical Chemistry:801.4 ; High Energy Physics:932.1
WOS关键词	LOW-TEMPERATURE FORM ; DISCOVERY ; WANNIER90 ; CATION ; AG2SE ; TOOL
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/119299
专题	硬x射线自由电子激光装置项目物质科学与技术学院_PI研究组_李刚组
通讯作者	Li, Gang
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China 2.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 200031, Peoples R China
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院; 上海科技大学
第一作者的第一单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Shi, Wujun,Li, Gang. Nodal plane and persistent spin texture in a Weyl semimetal without mirror symmetry[J]. PHYSICAL REVIEW B,2020,101(12).
APA	Shi, Wujun,&Li, Gang.(2020).Nodal plane and persistent spin texture in a Weyl semimetal without mirror symmetry.PHYSICAL REVIEW B,101(12).
MLA	Shi, Wujun,et al."Nodal plane and persistent spin texture in a Weyl semimetal without mirror symmetry".PHYSICAL REVIEW B 101.12(2020).