Inelastic neutron scattering measurements in a quadrupolar ordering compound YbSb

A. Oyamada, K. Kuwahara, K. Ohoyama, K. Iwasa, M. Kohgi, S. Maegawa

Research output: Contribution to journalArticlepeer-review

Abstract

Inelastic neutron scattering measurements were performed to study the excitation spectra of a quadrupolar ordering compound YbSb. We observed the three peaks (12.5, 17 and 21 meV) around Γ6 - Γ8 excitations far above the quadrupolar ordering temperature (TQ). This result suggests that the magnetic excitations have a dispersion rather than the splitting of Γ8 states at high temperatures. We also observed the strong q dependence in q scans at energy = 1 meV above TQ. The observed q dependence above TQ suggests that the theoretical approach beyond the molecular field approximation is required in order to understand the magnetic properties of Yb monopnictides.

Original languageEnglish
Pages (from-to)766-767
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 1
DOIs
Publication statusPublished - 2007 Mar 1

Keywords

  • Neutron scattering
  • Quadrupolar ordering
  • YbSb

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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