Journal of Low Temperature Physics

, Volume 55, Issue 1–2, pp 111–125 | Cite as

Low-temperature magnetic properties of EuMo6S8 and EuMo6Se8

  • T. Takabatake
  • R. W. McCallum
  • M. Kubota
  • F. Pobell
Article

Abstract

The low-temperature magnetic properties of EuMo6S8 and EuMo6Se8 have been investigated by means of the151Eu Mössbauer effect between 0.06 and 300 K and by measuring dc and ac magnetic susceptibilities between 0.017 and 3 K. A sharp deviation of the dc susceptibility from Curie-Weiss behavior indicates that EuMo6S8 and EuMo6Se8 order magnetically at 0.40 and 0.85 K, respectively. A drastic broadening of the Mössbauer linewidth of both compounds occurs at 0.9 K. The broadening above the magnetic ordering temperature for EuMo6S8 is explained in terms of slow relaxation effects arising from the depopulation of higher crystal field levels of Eu2+ ions. The combination of Mössbauer and susceptibility results indicates that the magnetically ordered states of EuMo6S8 and EuMo6Se8 are strongly affected by the crystal field.

Keywords

Magnetic Property Magnetic Susceptibility Magnetic Material Crystal Field Relaxation Effect 

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Copyright information

© Plenum Publishing Corporation 1984

Authors and Affiliations

  • T. Takabatake
    • 1
  • R. W. McCallum
    • 1
  • M. Kubota
    • 1
  • F. Pobell
    • 1
  1. 1.Institut für FestkörperforschungKernforschungsanlage JülichJülichGermany

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