Complex and strongly anisotropic magnetism in the pure spin system EuRh2Si2.

  title={Complex and strongly anisotropic magnetism in the pure spin system EuRh2Si2.},
  author={Silvia Seiro and Christoph Geibel},
  journal={Journal of physics. Condensed matter : an Institute of Physics journal},
  volume={26 4},
  • S. Seiro, C. Geibel
  • Published 3 November 2013
  • Chemistry, Physics, Medicine
  • Journal of physics. Condensed matter : an Institute of Physics journal
In divalent Eu systems, the 4f local moment has a pure spin state J = S = 7/2. Although the absence of orbital moment precludes crystal electric field effects, we report a sizable magnetic anisotropy in single crystals of EuRh2Si2. We observed a surprisingly complex magnetic behavior with three successive phase transitions. The Eu(2+) moments order in a probably amplitude-modulated structure below 24.5 K, undergoing a further transition to a structure that is possibly of the equal-moment type… 

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