4f-Ligand dehybridization in the intermetallic compound series CeNi 2(SnxSi1-x)2

J. J. Lu, Min-Kai Lee, Y. M. Lu, J. F. Chou, L. Y. Jang

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Abstract

Structural, transport, magnetic, and thermal measurements, as well as Ce-LIII spectroscopy were employed in this work in order to examine the 4f-ligand dehybridization in the series CeNi2(Sn xSi1-x)2 (x=0, 0.2, 0.4, 0.6, 0.8, and 1.0). The results revealed that CeNi2Si2 is a typical intermediate-valence (IV) compound with strong s-f hybridization, while CeNi2Sn2 is a Kondo-lattice compound with a low Néel temperature TN∼1.9 K. With increasing x, the decrease of s-f hybridization will drive the series away from an IV regime toward a magnetically ordered state. From the results, the evolution arises from competitions between s-f hybridization, the Kondo scattering, and the RKKY interaction, as well as the crystal-field effect.

Original languageEnglish
Pages (from-to)505-509
Number of pages5
JournalSolid State Communications
Volume135
Issue number8
DOIs
Publication statusPublished - 2005 Aug 1

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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