Investigation on the Intrinsic Phonon Properties of CrPS₄: A Combined Raman Spectroscopy and First-Principles Calculations Study.

ABSTRACT: Compared to other vdW-layered magnetic semiconductors, research on the intrinsic phonon properties of antiferromagnetic CrPS₄ is in its infancy, and elucidating these properties is crucial for unlocking its emerging applications. In this work, we combined Raman spectroscopy and first-principles calculations to thoroughly investigate the lattice vibrations of CrPS₄, uncovering its anisotropic phonon symmetry and phonon-phonon interactions. Angle-resolved polarized Raman spectroscopy was used to determine the orientation of the anisotropic CrPS₄ crystal. Temperature-dependent Raman studies revealed red shifts and line width broadening of phonon peaks with increasing temperature, indicating lattice anharmonicity. Notably, quartic-phonon scattering processes we

SUBMITTER: Li M 

PROVIDER: S-EPMC12290967 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature