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

doi:10.1016/j.ssc.2005.05.039

4f-Ligand dehybridization in the intermetallic compound series CeNi ₂(Sn_xSi_1-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-L_III spectroscopy were employed in this work in order to examine the 4f-ligand dehybridization in the series CeNi₂(Sn _xSi_1-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 T_N∼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 language	English
Pages (from-to)	505-509
Number of pages	5
Journal	Solid State Communications
Volume	135
Issue number	8
DOIs	https://doi.org/10.1016/j.ssc.2005.05.039
Publication status	Published - 2005 Aug 1

All Science Journal Classification (ASJC) codes

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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@article{c4202d35a7944f9ebb8c064cba4c298e,

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

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 N{\'e}el 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.",

author = "Lu, {J. J.} and Min-Kai Lee and Lu, {Y. M.} and Chou, {J. F.} and Jang, {L. Y.}",

year = "2005",

month = aug,

day = "1",

doi = "10.1016/j.ssc.2005.05.039",

language = "English",

volume = "135",

pages = "505--509",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Limited",

number = "8",

}

TY - JOUR

T1 - 4f-Ligand dehybridization in the intermetallic compound series CeNi 2(SnxSi1-x)2

AU - Lu, J. J.

AU - Lee, Min-Kai

AU - Lu, Y. M.

AU - Chou, J. F.

AU - Jang, L. Y.

PY - 2005/8/1

Y1 - 2005/8/1

N2 - 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.

AB - 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.

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