Possible observation of quadrupolar Kondo effect in Pr-based dilute quadrupolar compounds

T. Kawae; Y. Nakaie; Y. Inagaki; M. Hidaka; N. Tateiwa; T. Kitai

doi:10.1016/j.jmmm.2006.10.510

Possible observation of quadrupolar Kondo effect in Pr-based dilute quadrupolar compounds

T. Kawae, Y. Nakaie, Y. Inagaki, M. Hidaka, N. Tateiwa, T. Kitai

Applied Physics

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

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Abstract

We have studied the low-temperature properties of Pr_x La_{1 - x} Pb₃ andPr_x La_{1 - x} lnAg₂ with the crystal-electric-field (CEF) ground state of a non-Kramers Γ₃ doublet. In Pr_x La_{1 - x} Pb₃, non-Fermi-liquid (NFL) behavior has been observed for Pr concentrations x≤0.05 in the specific heat C / T, susceptibility and electrical resistivity at low temperatures. Moreover, application of magnetic field raises C / T rapidly, which demonstrates the presence of the residual entropy at lower temperatures. InPr_x La_{1 - x} lnAg₂, characteristic features have been seen up to x=0.8 in the susceptibility and specific heat below 15 K. These behaviors can be caused by the quadrupolar Kondo effect arising from the correlation between the dilute Γ₃ moments and the conduction electrons.

Original language	English
Pages (from-to)	235-237
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 1
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.510
Publication status	Published - Mar 2007

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2006.10.510

Cite this

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title = "Possible observation of quadrupolar Kondo effect in Pr-based dilute quadrupolar compounds",

abstract = "We have studied the low-temperature properties of Prx La1 - x Pb3 andPrx La1 - x lnAg2 with the crystal-electric-field (CEF) ground state of a non-Kramers Γ3 doublet. In Prx La1 - x Pb3, non-Fermi-liquid (NFL) behavior has been observed for Pr concentrations x≤0.05 in the specific heat C / T, susceptibility and electrical resistivity at low temperatures. Moreover, application of magnetic field raises C / T rapidly, which demonstrates the presence of the residual entropy at lower temperatures. InPrx La1 - x lnAg2, characteristic features have been seen up to x=0.8 in the susceptibility and specific heat below 15 K. These behaviors can be caused by the quadrupolar Kondo effect arising from the correlation between the dilute Γ3 moments and the conduction electrons.",

author = "T. Kawae and Y. Nakaie and Y. Inagaki and M. Hidaka and N. Tateiwa and T. Kitai",

year = "2007",

month = mar,

doi = "10.1016/j.jmmm.2006.10.510",

language = "English",

volume = "310",

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issn = "0304-8853",

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T1 - Possible observation of quadrupolar Kondo effect in Pr-based dilute quadrupolar compounds

AU - Kawae, T.

AU - Nakaie, Y.

AU - Inagaki, Y.

AU - Hidaka, M.

AU - Tateiwa, N.

AU - Kitai, T.

PY - 2007/3

Y1 - 2007/3

N2 - We have studied the low-temperature properties of Prx La1 - x Pb3 andPrx La1 - x lnAg2 with the crystal-electric-field (CEF) ground state of a non-Kramers Γ3 doublet. In Prx La1 - x Pb3, non-Fermi-liquid (NFL) behavior has been observed for Pr concentrations x≤0.05 in the specific heat C / T, susceptibility and electrical resistivity at low temperatures. Moreover, application of magnetic field raises C / T rapidly, which demonstrates the presence of the residual entropy at lower temperatures. InPrx La1 - x lnAg2, characteristic features have been seen up to x=0.8 in the susceptibility and specific heat below 15 K. These behaviors can be caused by the quadrupolar Kondo effect arising from the correlation between the dilute Γ3 moments and the conduction electrons.

AB - We have studied the low-temperature properties of Prx La1 - x Pb3 andPrx La1 - x lnAg2 with the crystal-electric-field (CEF) ground state of a non-Kramers Γ3 doublet. In Prx La1 - x Pb3, non-Fermi-liquid (NFL) behavior has been observed for Pr concentrations x≤0.05 in the specific heat C / T, susceptibility and electrical resistivity at low temperatures. Moreover, application of magnetic field raises C / T rapidly, which demonstrates the presence of the residual entropy at lower temperatures. InPrx La1 - x lnAg2, characteristic features have been seen up to x=0.8 in the susceptibility and specific heat below 15 K. These behaviors can be caused by the quadrupolar Kondo effect arising from the correlation between the dilute Γ3 moments and the conduction electrons.

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SN - 0304-8853

VL - 310

SP - 235

EP - 237

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2 SUPPL. PART 1

ER -

Possible observation of quadrupolar Kondo effect in Pr-based dilute quadrupolar compounds

Abstract

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