Crystallographic phase transition within the magnetically ordered state of Ce2 Fe17

  • A. Kreyssig
  • , S. Chang
  • , Y. Janssen
  • , J. W. Kim
  • , S. Nandi
  • , J. Q. Yan
  • , L. Tan
  • , R. J. McQueeney
  • , P. C. Canfield
  • , A. I. Goldman

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

X-ray diffraction experiments were performed on polycrystalline and single-crystal specimens of Ce2 Fe17 at temperatures between 10 and 300 K. Below Tt =118±2 K, additional weak superstructure reflections were observed in the antiferromagnetically ordered state. The superstructure can be described by a doubling of the chemical unit cell along the c direction in hexagonal notation with the same space group R 3̄ m as the room-temperature structure. The additional antiferromagnetic satellite reflections observed in earlier neutron diffraction experiments can be conclusively related to the appearance of this superstructure.

Original languageEnglish
Article number054421
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume76
Issue number5
DOIs
StatePublished - Aug 10 2007
Externally publishedYes

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