Pressure-Controlled Structural Symmetry Transition in Layered InSe

Su, Huimin1; Liu, Xuan2; Wei, Chengrong1,9; Li, Junning1; Sun, Zeyuan7,8; Liu, Qiye1; Zhou, Xuefeng1; Deng, Junhong2; Yi, Huan5,6; Hao, Qiaoyan5,6; Zhao, Yusheng1; Wang, Shanmin1; Huang, Li1; Wu, Shiwei7,8; Zhang, Wenjing5,6; Li, Guixin2,3; Dai, Jun-Feng1,3,4

2019-06

10.1002/lpor.201900012

Laser & Photonics Reviews   影响因子和分区

1863-8880

1863-8899

Structural symmetry of crystals plays important roles regarding the physical properties of two-dimensional (2D) materials, particularly in the nonlinear optics regime. There has been a long-term exploration of the physical properties in 2D materials with various stacking structures, which correspond to different structural symmetries. Usually, the manipulation of rotational alignment between layers in 2D heterostructures is realized at the synthetic stage through artificial stacking like assembling building blocks. However, the reconfigurable control of translational symmetry of crystalline structure is still challenging. High pressure, as a powerful external control knob, provides a very promising route to circumvent this constraint. Here, a pressure-controlled symmetry transition in layered InSe is experimentally demonstrated. The continuous and reversible evolution of structural symmetries can be in situ monitored by using polarization-resolved second-harmonic-generation (SHG) spectroscopy. As pressure changes, the reconfigurable symmetry transition of the SHG pattern from threefold rotational symmetry to mirror symmetry is experimentally observed in layered InSe samples and successfully explained by the proposed interlayer-translation model. This opens new routes toward potential applications of manipulating crystal symmetry of 2D materials.

2D materials second-harmonic generation structural symmetry

SCI ; EI

英语

第一 ; 通讯

Shenzhen Peacock Plan[KQTD2016053019134356]

Optics ; Physics

Optics ; Physics, Applied ; Physics, Condensed Matter

WOS:000471694500007

WILEY-V C H VERLAG GMBH

20192006909777

Harmonic generation ; Indium compounds ; Nonlinear optics ; Physical properties ; Selenium compounds

Nonlinear Optics:741.1.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Crystal Lattice:933.1.1

Web of Science

1.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
4.Shenzhen Key Lab Quantum Sci & Engn, Shenzhen 518055, Peoples R China
5.Shenzhen Univ, Int Collaborat Lab 2D Mat Optoelect Sci & Technol, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China
6.Shenzhen Univ, Coll Optoelect Engn, Shenzhen 518060, Peoples R China
7.Fudan Univ, State Key Lab Surface Phys, Key Lab Micro & Nano Photon Struct, Shanghai 200433, Peoples R China
8.Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
9.Univ Hong Kong, Dept Phys, Pokfulam, Hong Kong 999077, Peoples R China

Su, Huimin,Liu, Xuan,Wei, Chengrong,et al. Pressure-Controlled Structural Symmetry Transition in Layered InSe[J]. Laser & Photonics Reviews,2019,13(6).

Su, Huimin.,Liu, Xuan.,Wei, Chengrong.,Li, Junning.,Sun, Zeyuan.,...&Dai, Jun-Feng.(2019).Pressure-Controlled Structural Symmetry Transition in Layered InSe.Laser & Photonics Reviews,13(6).

Su, Huimin,et al."Pressure-Controlled Structural Symmetry Transition in Layered InSe".Laser & Photonics Reviews 13.6(2019).