Resonant X-ray diffraction study of multipole ordering in the ferromagnetic compound CePd 3S 4

Shinji Michimura, Toshiya Inami, Eiichi Matsuoka, Masanori Watahiki, Katsumi Tanigaki, Hideya Onodera

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4 Citations (Scopus)

Abstract

Resonant X-ray diffraction experiments on CePd 3S 4 were performed at the Ce-L 3 absorption edge to study the states of quadrupolar ordering below the ferromagnetic transition temperature T C = 6.3 K. The magnetic structure of CePd 3S 4 was reported as a canted ferromagnetic structure with a canting angle of 51 °. It has therefore been pointed out that the complex magnetic structure arises from the simultaneous ordering of quadrupole moments. We observed the azimuthal angle dependence of the diffraction intensity of two forbidden reflections, specifically, 003 and 104 reflections, for both π-π' and π-σ' scattering processes. The results revealed that O 0 2-type antiferroquadrupolar ordering coexists with magnetic ordering. We infer that the magnetic structure of CePd 3S 4 is not a canted structure but a ferrimagnetic structure and that the quadrupole moment is also a primary-order parameter. These findings well explain the anomalously high transition temperature of CePd 3S 4, which is very much higher than the magnetic transition temperature of 0.06 K estimated from de Gennes rule.

Original languageEnglish
Article number044711
Journaljournal of the physical society of japan
Volume81
Issue number4
DOIs
Publication statusPublished - 2012 Apr 1

Keywords

  • CePd S
  • Multipolar ordering
  • X-ray diffraction

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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