Manipulating the Raman scattering rotation via magnetic field in an MoS₂ monolayer.

ABSTRACT: Magneto-optical effects, which originate from the interactions between light and magnetism, have provided an important way to characterize magnetic materials and hosted abundant applications, such as light modulators, magnetic field sensors, and high-density data storage. However, such effects are too weak to be detected in non-magnetic materials due to the absence of spin degree of freedom. Here, we demonstrated that applying a perpendicular magnetic field can produce a colossal Raman scattering rotation in non-magnetic MoS₂, for A-mode representing the out-of-plane breathing vibration. Our experimental results show that linearly polarized scattering light is rotated by ∓125°, more apparent than the valley Zeeman splitting effect (∓1.2 meV) under the same experimental condition

SUBMITTER: Wan Y 

PROVIDER: S-EPMC8694209 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature