Influences of spin-orbit coupling on Fermi surfaces and Dirac cones in ferroelectriclike polar metals

Zhang, Hu; Huang, Wei; Mei, Jia-Wei; Shi, Xing-Qiang

2019-05-30

10.1103/PhysRevB.99.195154

PHYSICAL REVIEW B   影响因子和分区

2469-9950

2469-9969

Based on first-principles calculations and k . p effective models, we report physical properties of ferroelectric like hexagonal polar metals with P6(3)mc symmetry, which are distinct from those of conventional metals with spatial inversion symmetry. Spin textures exist on the Fermi surface of polar metals (e.g., ternary LiGaGe and elemental polar metal of Bi) and spin-momentum locking exist on accidental Dirac cones on the sixfold rotational axis, due to the spin-orbit coupling and lack of inversion symmetry in polar space group. This effect has potential applications in spin-orbitronics. Dirac points are also predicted in LiGaGe.

SCI ; EI

英语

第一 ; 通讯

Natural Science Foundation of China[11474145]

Materials Science ; Physics

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

WOS:000470823000002

AMER PHYSICAL SOC

20192507054604

Bismuth compounds ; Calculations ; Fermi surface ; Gallium compounds ; Germanium compounds ; Lithium compounds ; Locks (fasteners) ; Textures

Mathematics:921 ; Atomic and Molecular Physics:931.3

PHYSICS

Web of Science

Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

Zhang, Hu,Huang, Wei,Mei, Jia-Wei,et al. Influences of spin-orbit coupling on Fermi surfaces and Dirac cones in ferroelectriclike polar metals[J]. PHYSICAL REVIEW B,2019,99(19).

Zhang, Hu,Huang, Wei,Mei, Jia-Wei,&Shi, Xing-Qiang.(2019).Influences of spin-orbit coupling on Fermi surfaces and Dirac cones in ferroelectriclike polar metals.PHYSICAL REVIEW B,99(19).

Zhang, Hu,et al."Influences of spin-orbit coupling on Fermi surfaces and Dirac cones in ferroelectriclike polar metals".PHYSICAL REVIEW B 99.19(2019).