Inelastic neutron scattering by cerium hydrides. IV. Crystal field | Zendy

Vorderwisch P. | Zendy; Hautecler S. | Zendy; Suck J. B. | Zendy

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Inelastic neutron scattering by cerium hydrides. IV. Crystal field

Author(s) -

Vorderwisch P.,

Hautecler S.,

Suck J. B.

Publication year - 1979

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2220940228

Subject(s) - octahedron , inelastic neutron scattering , crystal (programming language) , materials science , tetrahedron , crystallite , ion , inelastic scattering , crystallography , neutron , neutron scattering , scattering , atomic physics , crystal structure , chemistry , physics , optics , nuclear physics , programming language , computer science , organic chemistry

The crystal field splitting of the 2 F 5/2 ground state of the Ce 3+ ion in CeD x is investigated by means of the inelastic neutron scattering technique. Polycrystalline samples with 1.94 ≦ x ≦ 2.74 are studied. A consistent description of the results can only be obtained assuming that, over the investigated concentration range, the samples have tetrahedral vacancies. For CeD 1.94 an effective charge of −0.30 |e| is derived, both for octahedral and tetrahedral deuteriums. For CeD 2.42 an effective charge of −1.44 |e| has to be attributed to the octahedral deuteriums. For CeD 2.74 scattered intensity due to crystal field transitions is also observed but as a structureless component of the spectra.

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