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Hyperfine Interactions

, Volume 165, Issue 1–4, pp 95–99 | Cite as

Mössbauer study of the transition metal phosphorus trichalcogenide FePS3 and spin glass Mn0.5Fe0.5PS3

  • Shuichi Ban
  • Yoshiki Takano
  • Naoki Ohkubo
  • Hisanobu Hoya
  • Yumiko Takahashi
  • Kouichi Takase
  • Kazuko Sekizawa
Article

Abstract

The transition metal phosphorus trichalcogenides MnPS3 and the FePS3 are CdCl2 type layered compounds, where the transition metal ions form a hexagonal lattice. While these compounds order anti-ferromagnetically at low temperature, the magnetic structures are different. We have reported that these mixtures Mn0.5Fe0.5PS3 is a spin glass with a glass transition temperature T g=33.7 K. Then, in this work, we report that the results of the temperature variation of the 57Fe Mössbauer spectra of FePS3 and Mn0.5Fe0.5PS3, in detail. In the anti-ferromagnetic state of FePS3, the hyperfine magnetic field H int increases with decreasing temperature and the Isomer shift I. S. increases slightly with decreasing temperature. However in Mn0.5Fe0.5PS3, the two broadened peaks are observed and the two peaks became a single peak with decreasing temperature at about 50.0 K, which is higher than T g=33.7 K. In the spin glass Mn0.5Fe0.5PS3, the Mössbauer spectra suggest that the magnetic interactions exist far above T g.

Key words

spin glasses Mössbauer effect remanence manganese compounds iron compounds transition metal phosphorus trichalcogenides magnetic interactions 

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Shuichi Ban
    • 1
  • Yoshiki Takano
    • 2
  • Naoki Ohkubo
    • 1
  • Hisanobu Hoya
    • 2
  • Yumiko Takahashi
    • 2
  • Kouichi Takase
    • 2
  • Kazuko Sekizawa
    • 2
  1. 1.Physics Laboratory, College of Science and TechnologyNihon UniversityFunabashi-CityJapan
  2. 2.Department of Physics, College of Science and TechnologyNihon UniversityChiyoda-kuJapan

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