### Abstract

We have studied the low-temperature properties of Pr_{x}La _{1-x}Pb_{3} with the ground state of a non-Kramers Γ _{3} doublet for the Pr concentration for 0≤x≤1. From the concentration dependence of the specific heat, the quadrupolar ordering, which is observed at T_{Q} = 0.4 K in PrPb_{3}, is concluded to persist only for x∼0.98. For a wide range of Pr concentration for 0.1≤x≤0.95, the specific heat shows a T-linear variation below 0.5 K with a large coefficient, which is almost reproduced by the model for amorphous materials with a random configuration of two-level system. For x≤0.05, C/T shows a non-Fermi liquid behavior with the monotonous enhancement of C/T with decreasing temperature, which is probably caused by Kondo effect arising from the correlation between the Γ_{3} moments and the conduction electrons.

Original language | English |
---|---|

Pages (from-to) | 100-101 |

Number of pages | 2 |

Journal | Journal of Magnetism and Magnetic Materials |

Volume | 272-276 |

Issue number | I |

DOIs | |

Publication status | Published - Jan 1 2004 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics

### Cite this

_{x}la

_{1-x}Pb

_{3}

*Journal of Magnetism and Magnetic Materials*,

*272-276*(I), 100-101. https://doi.org/10.1016/j.jmmm.2003.11.043

**Low-temperature properties of the dilute quadrupolar system Pr _{x}la_{1-x}Pb_{3} .** / Kawae, Tatsuya; Yurue, K.; Kinoshita, K.; Tateiwa, N.; Takeda, K.; Kitai, T.

Research output: Contribution to journal › Article

_{x}la

_{1-x}Pb

_{3}',

*Journal of Magnetism and Magnetic Materials*, vol. 272-276, no. I, pp. 100-101. https://doi.org/10.1016/j.jmmm.2003.11.043

_{x}la

_{1-x}Pb

_{3}Journal of Magnetism and Magnetic Materials. 2004 Jan 1;272-276(I):100-101. https://doi.org/10.1016/j.jmmm.2003.11.043

}

TY - JOUR

T1 - Low-temperature properties of the dilute quadrupolar system Pr xla1-xPb3

AU - Kawae, Tatsuya

AU - Yurue, K.

AU - Kinoshita, K.

AU - Tateiwa, N.

AU - Takeda, K.

AU - Kitai, T.

PY - 2004/1/1

Y1 - 2004/1/1

N2 - We have studied the low-temperature properties of PrxLa 1-xPb3 with the ground state of a non-Kramers Γ 3 doublet for the Pr concentration for 0≤x≤1. From the concentration dependence of the specific heat, the quadrupolar ordering, which is observed at TQ = 0.4 K in PrPb3, is concluded to persist only for x∼0.98. For a wide range of Pr concentration for 0.1≤x≤0.95, the specific heat shows a T-linear variation below 0.5 K with a large coefficient, which is almost reproduced by the model for amorphous materials with a random configuration of two-level system. For x≤0.05, C/T shows a non-Fermi liquid behavior with the monotonous enhancement of C/T with decreasing temperature, which is probably caused by Kondo effect arising from the correlation between the Γ3 moments and the conduction electrons.

AB - We have studied the low-temperature properties of PrxLa 1-xPb3 with the ground state of a non-Kramers Γ 3 doublet for the Pr concentration for 0≤x≤1. From the concentration dependence of the specific heat, the quadrupolar ordering, which is observed at TQ = 0.4 K in PrPb3, is concluded to persist only for x∼0.98. For a wide range of Pr concentration for 0.1≤x≤0.95, the specific heat shows a T-linear variation below 0.5 K with a large coefficient, which is almost reproduced by the model for amorphous materials with a random configuration of two-level system. For x≤0.05, C/T shows a non-Fermi liquid behavior with the monotonous enhancement of C/T with decreasing temperature, which is probably caused by Kondo effect arising from the correlation between the Γ3 moments and the conduction electrons.

UR - http://www.scopus.com/inward/record.url?scp=23144454753&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=23144454753&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2003.11.043

DO - 10.1016/j.jmmm.2003.11.043

M3 - Article

AN - SCOPUS:23144454753

VL - 272-276

SP - 100

EP - 101

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - I

ER -