First-principles prediction of ideal type-II Weyl phonons in wurtzite ZnSe

doi:10.1103/PhysRevB.103.094306

HFCAS OpenIR

	First-principles prediction of ideal type-II Weyl phonons in wurtzite ZnSe
	Liu, Peng-Fei 1,2; Li, Jingyu 3; Tu, Xin-Hai 1,2; Li, Hang4 ; Zhang, Junrong 1,2; Zhang, Ping 5,6; Gao, Qiang 7; Wang, Bao-Tian 1,2,5,8
	2021-03-22
发表期刊	PHYSICAL REVIEW B
ISSN	2469-9950
通讯作者	Liu, Peng-Fei()
摘要	Weyl materials, exhibiting topologically nontrivial touching points in band dispersion, are fascinating subjects of research, which have been extensively studied in electron-related systems. In this paper, by employing first-principles calculations of topological phonons in wurtzite-structured phases of MX chalcogenides (where M = Zn and Cd and X = O, S, Se, and Te), we demonstrate the existence of ideal type-II Weyl phonons in wurtzite ZnSe, a well-known II-VI semiconductor. There are in the q(z) = 0.0 plane six pairs of Weyl points stemming from the inversion between the two optical branches. The nontrivial phonon surface states and surface arcs projected on the semifinite (0001) surfaces are investigated. Phonon surface arcs connecting each pair of Weyl points with opposite chirality, guaranteed to be 0.55 angstrom(-1) and very long, are readily observable in experiment. The opposite chirality of Weyl points with quantized Berry curvature produces the Weyl phonon Hall effect. Our results propose a potential platform for future experimental study of type-II Weyl phonons in realistic materials.
DOI	10.1103/PhysRevB.103.094306
关键词[WOS]	DISCOVERY ; LATTICE ; SEMIMETALS ; SCHEMES ; POINTS
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Guangdong Province of China[2018A0303100013] ; Science Challenge Project[TZ2016001] ; Natural Science Foundation of China[11804078] ; Natural Science Foundation of China[11675195] ; Natural Science Foundation of China[11805214] ; Natural Science Foundation of China[12074381]
项目资助者	Natural Science Foundation of Guangdong Province of China ; Science Challenge Project ; Natural Science Foundation of China
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000646418900002
出版者	AMER PHYSICAL SOC
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/122084
专题	中国科学院合肥物质科学研究院
通讯作者	Liu, Peng-Fei
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Spallat Neutron Source Sci Ctr SNSSC, Dongguan 523803, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 4.Henan Univ, Sch Phys & Elect, Kaifeng 475004, Peoples R China 5.Qufu Normal Univ, Sch Phys & Phys Engn, Qufu 273165, Shandong, Peoples R China 6.Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China 7.Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China 8.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Peng-Fei,Li, Jingyu,Tu, Xin-Hai,et al. First-principles prediction of ideal type-II Weyl phonons in wurtzite ZnSe[J]. PHYSICAL REVIEW B,2021,103.
APA	Liu, Peng-Fei.,Li, Jingyu.,Tu, Xin-Hai.,Li, Hang.,Zhang, Junrong.,...&Wang, Bao-Tian.(2021).First-principles prediction of ideal type-II Weyl phonons in wurtzite ZnSe.PHYSICAL REVIEW B,103.
MLA	Liu, Peng-Fei,et al."First-principles prediction of ideal type-II Weyl phonons in wurtzite ZnSe".PHYSICAL REVIEW B 103(2021).