中国物理B ›› 2022, Vol. 31 ›› Issue (5): 56109-056109.doi: 10.1088/1674-1056/ac5a41

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Raman spectroscopy investigation on the pressure-induced structural and magnetic phase transition in two-dimensional antiferromagnet FePS3

Hong Zeng(曾鸿)1,2, Tingting Ye(叶婷婷)1,2, Peng Cheng(程鹏)1,2, Deyuan Yao(姚德元)1,2, and Junfeng Ding(丁俊峰)1,2,†   

  1. 1 Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China;
    2 University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2022-01-23 修回日期:2022-02-28 发布日期:2022-04-29
  • 通讯作者: Junfeng Ding,E-mail:junfengding@issp.ac.cn E-mail:junfengding@issp.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos.52002372,12004387,51672279,51727806,11874361,and 11774354)),Science Challenge Project (Grant No.TZ2016001),and the CASHIPS Director's Fund (Grant No.YZJJ201705).

Raman spectroscopy investigation on the pressure-induced structural and magnetic phase transition in two-dimensional antiferromagnet FePS3

Hong Zeng(曾鸿)1,2, Tingting Ye(叶婷婷)1,2, Peng Cheng(程鹏)1,2, Deyuan Yao(姚德元)1,2, and Junfeng Ding(丁俊峰)1,2,†   

  1. 1 Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China;
    2 University of Science and Technology of China, Hefei 230026, China
  • Received:2022-01-23 Revised:2022-02-28 Published:2022-04-29
  • Contact: Junfeng Ding,E-mail:junfengding@issp.ac.cn E-mail:junfengding@issp.ac.cn
  • About author:2022-3-3
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos.52002372,12004387,51672279,51727806,11874361,and 11774354)),Science Challenge Project (Grant No.TZ2016001),and the CASHIPS Director's Fund (Grant No.YZJJ201705).

摘要: 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.

关键词: FePS3, layered magnetic materials, high pressure, Raman spectroscopy

Abstract: 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.

Key words: FePS3, layered magnetic materials, high pressure, Raman spectroscopy

中图分类号:  (III-V and II-VI semiconductors)

  • 61.72.uj
75.50.Ee (Antiferromagnetics) 62.50.-p (High-pressure effects in solids and liquids) 63.20.-e (Phonons in crystal lattices)