%A Hong Zeng(曾鸿), Tingting Ye(叶婷婷), Peng Cheng(程鹏), Deyuan Yao(姚德元), and Junfeng Ding(丁俊峰) %T Raman spectroscopy investigation on the pressure-induced structural and magnetic phase transition in two-dimensional antiferromagnet FePS3 %0 Journal Article %D 2022 %J Chin. Phys. B %R 10.1088/1674-1056/ac5a41 %P 56109-056109 %V 31 %N 5 %U {https://cpb.iphy.ac.cn/CN/abstract/article_124689.shtml} %8 %X The layered van der Waals antiferromagnetic FePS3 has received considerable attention because long range magnetic ordering can remain with single atoms layer, which offers potential applications in future ultrathin devices. Here, we perform Raman spectroscopy to systematically explore the variations of lattice vibration and crystal structure under pressure up to 18.9 GPa. We observe two structural phase transitions at approximately 4 GPa and 13 GPa, respectively. Moreover, by monitoring spin-related Raman modes, we demonstrate a pressure-induced magnetic structure transition above 2 GPa. These modes disappear accompanying the second structural phase transition and insulator-to-metal transition (IMT), indicating the suppression of long-range magnetic ordering, in agreement with earlier neutron powder diffraction experiments.