Deciphering the lattice vibrational behaviors of CuInP2S6 by angle-resolved polarized Raman scattering

Yiqi Hu, Jun-Jie Zhang, Zhou Zhou +12

The layered van der Waals (vdW) ferroelectric CuInP2S6 (CIPS) exhibits unique cation hopping-driven phenomena that bring about unconventional properties with intriguing mechanisms…