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.
@article{arxiv.2403.04426,
title = {Spin-Phonon interaction in quasi 2D- Cr$_2Te_3$},
author = {Gurupada Ghorai and Kalyan Ghosh and Abhilash Patra and Prasanjit Samal and Kartik Senapati and Pratap K. Sahoo},
journal= {arXiv preprint arXiv:2403.04426},
year = {2024}
}