Observation of partial-disorder-type spin fluctuations in frustrated MnPt

Keisuke Tomiyasu, Hiroyuki Yasui, Yasuo Yamaguchi

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5 Citations (Scopus)


The spin-frustrated intermetallic compound Mn 3Pt exhibits a characteristic magnetic structure called partial disorder, in which some spin sites can form magnetic order through the generation of nonordered sites that locally relieve the frustration. Here, we report the results of a single-crystal inelastic neutron scattering study of this compound. The measured momentum Q correlations of diffusive magnetic scattering reveal that the paramagnetic phase exhibits not completely but strongly two-dimensional spin fluctuations, which are described by short-range interlayer melts with the same type of partial disorder.

Original languageEnglish
Article number114724
Journaljournal of the physical society of japan
Issue number11
Publication statusPublished - 2012 Nov


  • Geometrical frustration
  • Inelastic neutron scattering
  • Partial disorder

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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