Matches in SemOpenAlex for { <https://semopenalex.org/work/W4328130727> ?p ?o ?g. }
- W4328130727 abstract "Nonlinear optical (NLO) effect plays a crucial role to engineer optical angular frequency and symmetry of electronic system. Metallic transition-metal dichalcogenides are one of two-dimensional (2D) materials, which have no inversion symmetry for odd-number layers. In particular, odd-number-layered ${mathrm{NbSe}}_{2}$ has spin splitting owing to Ising-type spin-orbit coupling. In this paper, we numerically calculate the NLO charge and spin conductivities of ${mathrm{NbSe}}_{2}$ based on an effective tight-binding model for several different optical effects, i.e., symmetry manipulation by bicircular light (BCL) and bulk photovoltaic effect (shift and injection currents). Under irradiation of BCL which can control the symmetry of electronic system, the current can be generated even in even-number-layered ${mathrm{NbSe}}_{2}$. Also, we find that shift current can be generated for odd-number-layered ${mathrm{NbSe}}_{2}$, which is robust against electronic scattering, i.e., topological current. The direction of generated shift current can be switched by altering polarization of light. Our results will serve to design opto-spintronics devices based on 2D materials to manipulate the charge and spin currents and their directions by controlling the polarization of incident light which recasts the symmetry of electronic systems." @default.
- W4328130727 created "2023-03-22" @default.
- W4328130727 creator A5019967142 @default.
- W4328130727 creator A5085369368 @default.
- W4328130727 date "2023-03-21" @default.
- W4328130727 modified "2023-10-16" @default.
- W4328130727 title "Symmetry manipulation of nonlinear optical effect for metallic transition-metal dichalcogenides" @default.
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- W4328130727 doi "https://doi.org/10.1103/physrevb.107.115422" @default.
- W4328130727 hasPublicationYear "2023" @default.
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