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Crystalline electric fields and the ground state of Ce3Rh4Pb13 D. A. Sokolov,1,

Summary: Crystalline electric fields and the ground state of Ce3Rh4Pb13
D. A. Sokolov,1,
* M. C. Aronson,1 C. Henderson,2 and J. W. Kampf3
1Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109-1040, USA
2Department of Geological Sciences, University of Michigan, 1100 North University, Ann Arbor, Michigan 48109-1005, USA
Department of Chemistry, University of Michigan, 930 North University, Ann Arbor, Michigan 48109-1055, USA
Received 30 November 2006; published 9 August 2007
We have succeeded in synthesizing single crystals of an intermetallic compound Ce3Rh4Pb13. Magnetic
susceptibility measurements indicate that the Ce moments are highly localized despite the metallic character of
the electrical resistivity. Heat capacity measurements reveal that the crystalline electric field lifts the sixfold
degeneracy of the Ce3+
ground state, with the excited quartet separated by approximately 60 K from the
doublet ground state. The magnetic field dependence of the heat capacity at low temperature indicates a further
splitting of the doublet, but no sign of magnetic order was found above 0.35 K.
DOI: 10.1103/PhysRevB.76.075109 PACS number s : 71.20.Eh, 75.40.Cx
Rare-earth-based intermetallic compounds continue to at-
tract a great deal of interest due to the richness of the mag-
netic and electronic phenomena observed in these systems.1,2


Source: Aronson, Meigan - Department of Physics and Astronomy, SUNY at Stony Brook


Collections: Materials Science; Physics