Inelastic neutron scattering measurements in a quadrupolar ordering compound YbSb

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

研究成果: Article査読

抄録

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.

本文言語English
ページ(範囲)766-767
ページ数2
ジャーナルJournal of Magnetism and Magnetic Materials
310
2 SUPPL. PART 1
DOI
出版ステータスPublished - 2007 3月 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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