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 language | English |
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Pages (from-to) | 766-767 |
Number of pages | 2 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 310 |
Issue number | 2 SUPPL. PART 1 |
DOIs | |
Publication status | Published - 2007 Mar 1 |
Keywords
- Neutron scattering
- Quadrupolar ordering
- YbSb
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics