Probing the properties of lattice vibrations and surface electronic states in magnetic semiconductor CrPS₄.

ABSTRACT: Searching for multifunctional materials with magnetism and semiconductivity is one of the goals of research into two-dimensional (2D) systems. Herein, we report a chemical vapor transport method to successfully synthesize a layered magnetic semiconductor, CrPS₄. Under parallel and perpendicular polarization configurations, the anisotropic optical response of the (001) surface was investigated by polarized Raman spectroscopy; the Raman peak intensity was recorded with the crystal rotated from 0° to 360°, taking the symmetry of the Raman tensor into account; the A or B vibrational mode of different Raman peaks can be clearly distinguished. Moreover, the electronic state of the (001) single-crystal surface was investigated by ultraviolet photoelectron spectroscopy (UPS), which reve

SUBMITTER: Wu H 

PROVIDER: S-EPMC9072214 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature