An Experimental and Theoretical Study of the Variation of 4f Hybridization Across the La1-xCexIn3 Series

Details An Experimental and Theoretical Study of the Variation of 4f Hybridization Across the La1-xCexIn3 Series An Experimental and Theoretical Study of the Variation of 4f Hybridization Across the La1-xCexIn3 Series

2008-06-10

arxiv.org/abs/0806.1756v1

Inorg. Chem., 47 (7), 2569-2575 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 8 figures

Scientific paper

10.1021/ic701930j

Crystal structures of a series of La1-xCexIn3 (x = 0.02, 0.2, 0.5, or 0.8) intermetallic compounds have been investigated by both neutron and X-ray diffraction, and their physical properties have been characterized by magnetic susceptibility and specific heat measurements. Our results emphasize atypical atomic displacement parameters (ADP) for the In and the rare-earth sites. Depending on the x value, the In ADP presents either an "ellipsoidal" elongation (La-rich compounds) or a "butterfly-like" distortion (Ce-rich compounds). These deformations have been understood by theoretical techniques based on the band theory and are the result of hybridization between conduction electrons and 4f-electrons.

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