Ideal hourglass-type charge-three Weyl fermions in spinless systems

Xiao, Xiaoliang1,2; Jin, Yuanjun3; Ma, Da-Shuai1,2,4; Kong, Weixiang1,2; Fan, Jing5; Wang, Rui1,2,4,6; Wu, Xiaozhi1,2,6

2024-02-26

10.1103/PhysRevB.109.075160

PHYSICAL REVIEW B   影响因子和分区

2469-9950

2469-9969

Hourglass -type Weyl fermions with the maximally topological charge of |C| = 3, namely hourglass -type charge -three Weyl fermions (CTWFs), have seldom been reported due to the nonnegligible spin -orbit coupling effect and Pauli exclusion principles. Here, based on symmetry arguments and the low -energy effective k center dot p model, we confirm that two chiral space groups (SGs), i.e., SG P63 (No. 173) and SG P6322 (No. 182), can host ideal hourglass -type CTWFs in spinless systems. Moreover, we take Li2CO4 as a concrete example to show the ideal hourglass -type CTWFs, which possess ultralong sextuple- and triple-helicoid Fermi arcs, making them easier to be detected by experiments. Our work not only offers an avenue to search for ideal hourglasstype CTWFs but also provides a promising platform for experiments to verify this kind of unconventional quasiparticles with the ultralong sextuple- and triple-helicoid surface arcs.

SCI ; EI

英语

其他

National Natural Science Foundation of China (NSFC)["12174040","12204074","12222402","12347101"] ; China National Postdoctoral Program for Innovative Talent[BX20220367] ; Chongqing Natural Science Foundation[cstc2020jcyj-msxmX0118]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001198573300008

AMER PHYSICAL SOC

PHYSICS

Web of Science

1.Chongqing Univ, Inst Struct & Funct, Chongqing 400044, Peoples R China
2.Chongqing Univ, Dept Phys, Chongqing 400044, Peoples R China
3.Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore
4.Chongqing Univ, Ctr Quantum Mat & Devices, Chongqing 400044, Peoples R China
5.Southern Univ Sci & Technol, Ctr Computat Sci & Engn, Shenzhen 518055, Peoples R China
6.Chongqing Key Lab Strongly Coupled Phys, Chongqing 400044, Peoples R China

Xiao, Xiaoliang,Jin, Yuanjun,Ma, Da-Shuai,et al. Ideal hourglass-type charge-three Weyl fermions in spinless systems[J]. PHYSICAL REVIEW B,2024,109(7).

Xiao, Xiaoliang.,Jin, Yuanjun.,Ma, Da-Shuai.,Kong, Weixiang.,Fan, Jing.,...&Wu, Xiaozhi.(2024).Ideal hourglass-type charge-three Weyl fermions in spinless systems.PHYSICAL REVIEW B,109(7).

Xiao, Xiaoliang,et al."Ideal hourglass-type charge-three Weyl fermions in spinless systems".PHYSICAL REVIEW B 109.7(2024).