2024/03/07 by Gurupada Ghorai, Ghorai, Gurupada, Kalyan Ghosh +9 · 1 citation
Physics and Astronomy · Chemistry · #Topological Materials and Phenomena #Advanced Physical and Chemical Molecular Interactions
paper · pdf · doi:10.48550/arxiv.2403.04426
Spin-phonon interaction plays an important role in 2D magnetic materials and motivates the development of next-generation spin- and charge-dependent microelectronic devices. Understanding the spin-phonon interaction by tuning the growth parameter of single crystal Cr2Te3, a robust quasi-2D room temperature magnetic material, is crucial for spintronic devices. The synthesis of single crystal 2D Cr2Te3 flakes on a Si substrate from co-deposited thin film by plasma annealing techniques is a significant achievement. The temperature dependence and polarization-resolved Raman spectroscopy with support of density functional theory classified lattice symmetry operations were used to identify the phonon modes to investigate the spin/electron-phonon interactions in Cr2Te3. The mean-field theory model in single crystal Cr2Te3 is employed to quantify the spin-phonon interaction and correlate with in-plane and out-of-plane magnetic behavior. The observation of a positive correlation between phonon mode frequency and spin-phonon interaction strength in single crystal Cr2Te3 can be a potential candidate for spintronic applications.