Work

Photoinduced magnetooptical response in monolayer transition metal dichalcogenides

Year: 2025

Type: article

Abstract: Magnetooptical effects, manifesting the interactions between the light and magnetic materials, enable a wide range of the potential applications in sensing, optical isolators, switches as well as data storages. The emergence of monolayer transition metal dichalcogenides allows the alternative chances to unravel their magnetooptical effects under the application of the magnetic field. Here, without relying on the magnetic field, we demonstrate the generation of the magnetooptical effect in monolayer transition metal dichalcogenides driven by the irradiation of an off-resonant circularly polarized light, which breaks the limitation of the absence of the magnetooptical effect in the pristine ones. We find that the induced optical Hall conductivity of monolayer transition metal dichalcogenides can be engineered by the effective energy term depending on the amplitude and frequency of the circularly polarized light. Furthermore, we also present the efficient control of the optical Hall conductivity in monolayer transition metal dichalcogenides by its chemical potential. Our results establish an effective way to produce the remarkable magnetooptical effects in monolayer transition metal dichalcogenides and the avenue for next-generation applications via two-dimensional layered materials.

Source: Journal of Applied Physics

DOI: 10.1063/5.0251550

Authors: Haixia Da, Qi Song, Huapeng Ye

Institutions: Nanjing University of Posts and Telecommunications, Nanjing University of Industry Technology, South China Normal University

Language: English

Topic: 2D Materials and Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,500

Funders: National Natural Science Foundation of China, Natural Science Foundation of Jiangsu Province