Volume 33, Number 2, January II 1996
|Page(s)||141 - 146|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Evolution of Ce dynamic magnetic response in Ce1-xLaxNi compounds
RRC "Kurchatov Institute” - Moscow 123098, Russia
2 Argonne National Laboratory - Argonne IL 60439, USA
3 Southampton University - Southampton SO 95 NH, UK
4 A.A.Baikov Institute of Metallurgy - Moscow 117911, Russia
Accepted: 27 November 1995
The 4f electron excitation spectra for a series of compounds with x=0; 0.2; 0.5 and 0.8, where transition occurs from intermediate valence to a localized 4f state, have been measured at K by inelastic neutron scattering for a wide range of neutron energy transfer. A qualitative change of the magnetic response takes place when the hybridization energy becomes nearly equal to the crystal field splitting of the 4f shell. In pure CeNi, a gap-like magnetic spectrum has been observed.
PACS: 71.70.Ch – Crystal and ligand fields / 75.20.Hr – Local moment in compounds and alloys; Kondo effect, valence fluctuations, heavy fermions / 75.30.Mb – Valence fluctuation, Kondo lattice, and heavy-fermion phenomena
© EDP Sciences, 1996
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