Antiferromagnetic alignment of magnetic dipolar moments observed by Neutron powder diffraction in rare-earth palladium bronze PrPd3S4

Eiichi Matsuoka, Daichi Usui, Yuta Sasaki, Masanori Watahiki, Kazuaki Iwasa, Hiroshi Shida, Kenji Ohoyama, Hideya Onodera

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Neutron powder di.raction and inelastic-neutron-scattering experiments have been performed on PrPd3S4 as well as magnetization and magnetic-susceptibility measurements of single-crystalline samples to examine the order parameter below TM = 1:56 K. From the results of the inelastic-neutronscattering and magnetization measurements, the ground state of the J-multiplet of Pr3+ under a cubic crystalline electric field with Th symmetry was determined to be the Γ4 (2) triplet with the first excited state situated above 390 K. Since the dipolar operator and the Tα-and Tβ-type octupolar operators are proportional to the same matrix with the bases of the ground Γ4(2) triplet, the antiferromagnetic (AFM) alignment of the magnetic dipolar moments below TM observed in the neutron powder diffraction experiment implies two possible ordering states, i.e., AFM ordering induced by a dipolar interaction and antiferro-octupolar ordering induced by an octupolar interaction.

Original languageEnglish
Article number064708
Journaljournal of the physical society of japan
Volume79
Issue number6
DOIs
Publication statusPublished - 2010 Jun

Keywords

  • Antiferro-octupolar order
  • Antiferromagnetic order
  • Magnetic susceptibility
  • Magnetization
  • Neutron scattering
  • PrPdS

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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