Non-fermi liquid behavior in Pr-based dilute quadrupolar systems

T. Kawae; Y. Nakaie; C. S. Li; M. Hitaka; N. Tateiwa; T. Kitai

doi:10.1016/j.physb.2006.01.064

Non-fermi liquid behavior in Pr-based dilute quadrupolar systems

T. Kawae, Y. Nakaie, C. S. Li, M. Hitaka, N. Tateiwa, T. Kitai

Applied Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We have studied the low-temperature properties of Pr_x La_{1 - x} Pb₃ and Pr_x La_{1 - x} InAg₂ with the crystal-electric-field ground state of a non-Kramers Γ₃ doublet to examine the correlation between the Γ₃ quadrupolar moments and the conduction electrons. In Pr_x La_{1 - x} Pb₃, a non-Fermi-liquid (NFL) behavior is observed for x {less-than or slanted equal to} 0.05 in the specific heat C / T and the electrical resistivity below 3 K. Moreover, application of magnetic field raises C / T rapidly, which demonstrates the presence of the residual entropy at lower temperatures. In Pr_x La_{1 - x} InAg₂, NFL behavior is confirmed up to x=0.8 in the susceptibility and the specific heat below 15 K. It is supposed that the Kondo effect arising from the correlation between the dilute Γ₃ moments and the conduction electrons gives rise to NFL behavior in both systems.

Original language	English
Pages (from-to)	167-168
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	378-380
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2006.01.064
Publication status	Published - May 1 2006

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/j.physb.2006.01.064

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title = "Non-fermi liquid behavior in Pr-based dilute quadrupolar systems",

abstract = "We have studied the low-temperature properties of Prx La1 - x Pb3 and Prx La1 - x InAg2 with the crystal-electric-field ground state of a non-Kramers Γ3 doublet to examine the correlation between the Γ3 quadrupolar moments and the conduction electrons. In Prx La1 - x Pb3, a non-Fermi-liquid (NFL) behavior is observed for x {less-than or slanted equal to} 0.05 in the specific heat C / T and the electrical resistivity below 3 K. Moreover, application of magnetic field raises C / T rapidly, which demonstrates the presence of the residual entropy at lower temperatures. In Prx La1 - x InAg2, NFL behavior is confirmed up to x=0.8 in the susceptibility and the specific heat below 15 K. It is supposed that the Kondo effect arising from the correlation between the dilute Γ3 moments and the conduction electrons gives rise to NFL behavior in both systems.",

author = "T. Kawae and Y. Nakaie and Li, {C. S.} and M. Hitaka and N. Tateiwa and T. Kitai",

year = "2006",

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doi = "10.1016/j.physb.2006.01.064",

language = "English",

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T1 - Non-fermi liquid behavior in Pr-based dilute quadrupolar systems

AU - Kawae, T.

AU - Nakaie, Y.

AU - Li, C. S.

AU - Hitaka, M.

AU - Tateiwa, N.

AU - Kitai, T.

PY - 2006/5/1

Y1 - 2006/5/1

N2 - We have studied the low-temperature properties of Prx La1 - x Pb3 and Prx La1 - x InAg2 with the crystal-electric-field ground state of a non-Kramers Γ3 doublet to examine the correlation between the Γ3 quadrupolar moments and the conduction electrons. In Prx La1 - x Pb3, a non-Fermi-liquid (NFL) behavior is observed for x {less-than or slanted equal to} 0.05 in the specific heat C / T and the electrical resistivity below 3 K. Moreover, application of magnetic field raises C / T rapidly, which demonstrates the presence of the residual entropy at lower temperatures. In Prx La1 - x InAg2, NFL behavior is confirmed up to x=0.8 in the susceptibility and the specific heat below 15 K. It is supposed that the Kondo effect arising from the correlation between the dilute Γ3 moments and the conduction electrons gives rise to NFL behavior in both systems.

AB - We have studied the low-temperature properties of Prx La1 - x Pb3 and Prx La1 - x InAg2 with the crystal-electric-field ground state of a non-Kramers Γ3 doublet to examine the correlation between the Γ3 quadrupolar moments and the conduction electrons. In Prx La1 - x Pb3, a non-Fermi-liquid (NFL) behavior is observed for x {less-than or slanted equal to} 0.05 in the specific heat C / T and the electrical resistivity below 3 K. Moreover, application of magnetic field raises C / T rapidly, which demonstrates the presence of the residual entropy at lower temperatures. In Prx La1 - x InAg2, NFL behavior is confirmed up to x=0.8 in the susceptibility and the specific heat below 15 K. It is supposed that the Kondo effect arising from the correlation between the dilute Γ3 moments and the conduction electrons gives rise to NFL behavior in both systems.

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - SPEC. ISS.

ER -

Non-fermi liquid behavior in Pr-based dilute quadrupolar systems

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