Cerium LIII-Edge X-ray Absorption Study of the CeₓFe_4-yCo_ySb₁₂ Skutterudites

Author

Fernande Grandjean, Missouri University of Science and TechnologyFollow
Gary J. Long, Missouri University of Science and TechnologyFollow
Robert Cortès
Donald T. Morelli
Gregory P. Meisner

Abstract

The cerium L_III-edge x-ray absorption near-edge spectra of the Ce_xFe_4-yCo_ySb₁₂ compounds have been obtained at 295 K and unambiguously indicate that cerium is in the 4f¹ electronic ground state for all values of 0.22≤x≤0.98 and 0.0≤y≤3.5. This stable trivalent state of cerium is in agreement with the proposed (CeFe₄Sb₁₂) _1-α(Co₄Sb₁₂)α, solid solution structure, in which the cerium atoms are always surrounded by twelve antimony first neighbors and six iron second neighbors, the observed magnetic properties of CeFe₄Sb₁₂ and Ce_0.9Fe₃CoSb₁₂, and the electronic structure of CeFe₄Sb₁₂ obtained from band-structure calculations.

Recommended Citation

F. Grandjean et al., "Cerium LIII-Edge X-ray Absorption Study of the CeₓFe_4-yCo_ySb₁₂ Skutterudites," Physical Review B (Condensed Matter), vol. 62, no. 19, pp. 12569 - 12572, American Physical Society (APS), Nov 2000.

The definitive version is available at https://doi.org/10.1103/PhysRevB.62.12569

Department(s)

Chemistry

Keywords and Phrases

Antimony; Cerium; Cobalt; Iron; Absorption Spectroscopy; Calculation; X Ray

International Standard Serial Number (ISSN)

0163-1829

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2000 American Physical Society (APS), All rights reserved.

Publication Date

01 Nov 2000