Pressure‐Controlled Structural Symmetry Transition in Layered InSe

  title={Pressure‐Controlled Structural Symmetry Transition in Layered InSe},
  author={Huimin Su and Xuan Liu and Chengrong Wei and Junning Li and Zeyuan Sun and Qiye Liu and Xuefeng Zhou and Junhong Deng and Huan Yi and Qiaoyan Hao and Yusheng Zhao and Shanmin Wang and Li Huang and Shiwei Wu and Wenjing Zhang and Guixin Li and Junfeng Dai},
  journal={Laser \& Photonics Reviews},
  • H. Su, Xuan Liu, +14 authors J. Dai
  • Published 11 March 2019
  • Materials Science, Physics
  • Laser & Photonics Reviews
Structural symmetry of crystals plays important roles in physical properties of two-dimensional (2D) materials, particularly in the nonlinear optics regime. It has been a long-term exploration on 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 has been realized at the synthetic stage through artificial stacking like assembling… 
6 Citations

Figures from this paper

Nonlinear Optical Characterization of 2D Materials
The recent research progress on the NLO characterization of several important properties of 2D materials, including the number of layers, crystal orientation, crystal phase, defects, chemical specificity, strain, chemical dynamics, and ultrafast dynamics of excitons and phonons are introduced.
Pressure-Enhanced Ferromagnetism in Layered CrSiTe3 Flakes.
  • Cheng Zhang, Yue Gu, +8 authors J. Dai
  • Physics, Medicine
    Nano letters
  • 2021
Pressure-enhanced ferromagnetism in layered CrSiTe3 flakes revealed by high-pressure magnetic circular dichroism measurements indicates a remarkable influence of pressure on exchange interactions, which is consistent with DFT calculations.
Harmonic generation in transition metal dichalcogenides and their heterostructures
Abstract Few layered transition metal dichalcogenides (TMD), with an absence of crystal inversion symmetry and outstanding optical characteristics, are frequently applied in studies of nonlinear
Bond additivity model for anisotropic second-harmonic generation from two-dimensional honeycomb lattices
We provide an analytical method for extracting detailed structural information about two-dimensional (2D) honeycomb lattices from optical second-harmonic generation (SHG) anisotropy patterns. When


Symmetry-selective third-harmonic generation from plasmonic metacrystals.
It is shown that the selection rule can be imposed by the rotational symmetry of metacrystals embedded into an isotropic organic nonlinear thin film, which may open new avenues for designing symmetry-dependent nonlinear optical responses with tailored plasmonic nanostructures.
Second harmonic generation from artificially stacked transition metal dichalcogenide twisted bilayers.
It is shown here that the SHG is an efficient, sensitive, and nondestructive characterization for the stacking orientation, crystal polarity, and domain boundary of van der Waals heterostructures made of noncentrosymmetric layered materials.
Pressure-induced layer-nonlayer transformation in InSe
Abstract A high pressure phase of InSe has been obtained by annealing a layered crystal of 3R(γ) polytype for two days at 250°C under a pressure of 40 kbar. The X-ray precession photograph indicates
Structural and optical properties of InSe under pressure
Abstract We have investigated the high pressure behavior of InSe by x-ray powder diffraction and optical measurements. The rhombohedral γ-polytype of InSe (space group R3m) exhibits a strongly
Layered Indium Selenide under High Pressure: A Review
This paper intends a short review of the research work done on the structural and electronic properties of layered Indium Selenide (InSe) and related III–VI semiconductors under high pressure
High electron mobility, quantum Hall effect and anomalous optical response in atomically thin InSe.
Encapsulated 2D InSe expands the family of graphene-like semiconductors and, in terms of quality, is competitive with atomically thin dichalcogenides and black phosphorus.
Edge Nonlinear Optics on a MoS2 Atomic Monolayer
A simple microscopy technique based on the nonlinear optical response of the materials to probe and characterize atomically thin layers of molybdenum disulfide, a transition metal dichalcogenide, which provides a route toward understanding and making use of the emerging 2D materials and devices.
Unconventional superconductivity in magic-angle graphene superlattices
The realization of intrinsic unconventional superconductivity is reported—which cannot be explained by weak electron–phonon interactions—in a two-dimensional superlattice created by stacking two sheets of graphene that are twisted relative to each other by a small angle.
Topological mosaics in moire superlattices of van der Waals heterobilayers
Engineering moire superlattices by stacking two-dimensional crystals could enable lateral superstructures to be formed where the local topological phase is periodically modulated, creating
Continuous control of the nonlinearity phase for harmonic generations.
The continuous phase engineering of the effective nonlinear polarizability enables complete control over the propagation of harmonic generation signals, paving the way for highly compact nonlinear nanophotonic devices.