Crystal fields and spin dynamics of hexagonal CeTSn compounds (T = Cu, Ag and Au)
D T Adroja; B D Rainford; A J Neville; D T Adroja; Department of Physics, Southampton University, Southampton SO17 1BJ, UK; B D Rainford; Department of Physics, Southampton University, Southampton SO17 1BJ, UK; A J Neville; Department of Physics, Southampton University, Southampton SO17 1BJ, UK
Журнал:
Journal of Physics: Condensed Matter
Дата:
1997-07-07
Аннотация:
We report inelastic neutron scattering and magnetization measurements for hexagonal CeTSn compounds, with T = Cu, Ag and Au. Inelastic neutron spectra of all three compounds show two well defined crystal-field excitations. The overall crystal-field splitting is largest for CeAuSn. Low-energy neutron scattering studies of CeCuSn and CeAgSn reveal the presence of a quasielastic line whose width varies with the wavevector and increases weakly with temperature. Magnetization isotherms for CeCuSn at 1.7 K show several metamagnetic transitions.
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