Specific heat and resistivity study of heavy fermion compound CeCuGa

Zhengxiao Li; Yupeng Wang; Jianlin Luo; Xiaohang Cai; Weijun Yao; Duo Jin; Jianping Kuang; Fuming Yang

doi:10.1016/0921-4534(91)91440-F

Specific heat and resistivity study of heavy fermion compound CeCuGa

Zhengxiao Li, Yupeng Wang, Jianlin Luo, Xiaohang Cai, Weijun Yao, Duo Jin, Jianping Kuang, Fuming Yang

Neutron Symmetries

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Abstract

We found CeCuGa to be a heavy fermion compound with orthorhombic structure of CeCu₂ type. In this report, we present the measurements of its resistivity from 0.5K to 300K and of specific heat from 1.5K to 30K. The temperature dependence of resistivity shows Kondo behavior below 30K. The specific heat above 10K is well fitted by a sum of the electron contribution γT and the phonon contribution βT², whereas the ratio C/T remarkably increase below 10K and is also well fitted by γ + β T² with a huge γ value 1.46J/K².mol below 2K, that is a typically of heavy fermion behavior.

Original language	English
Pages (from-to)	2635-2636
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	185-189
Issue number	PART 4
DOIs	https://doi.org/10.1016/0921-4534(91)91440-F
State	Published - Dec 1 1991

Funding

This work was supported by Chinese National Fund of Natural Science.

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title = "Specific heat and resistivity study of heavy fermion compound CeCuGa",

abstract = "We found CeCuGa to be a heavy fermion compound with orthorhombic structure of CeCu2 type. In this report, we present the measurements of its resistivity from 0.5K to 300K and of specific heat from 1.5K to 30K. The temperature dependence of resistivity shows Kondo behavior below 30K. The specific heat above 10K is well fitted by a sum of the electron contribution γT and the phonon contribution βT2, whereas the ratio C/T remarkably increase below 10K and is also well fitted by γ + β T2 with a huge γ value 1.46J/K2.mol below 2K, that is a typically of heavy fermion behavior.",

author = "Zhengxiao Li and Yupeng Wang and Jianlin Luo and Xiaohang Cai and Weijun Yao and Duo Jin and Jianping Kuang and Fuming Yang",

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T1 - Specific heat and resistivity study of heavy fermion compound CeCuGa

AU - Li, Zhengxiao

AU - Wang, Yupeng

AU - Luo, Jianlin

AU - Cai, Xiaohang

AU - Yao, Weijun

AU - Jin, Duo

AU - Kuang, Jianping

AU - Yang, Fuming

PY - 1991/12/1

Y1 - 1991/12/1

N2 - We found CeCuGa to be a heavy fermion compound with orthorhombic structure of CeCu2 type. In this report, we present the measurements of its resistivity from 0.5K to 300K and of specific heat from 1.5K to 30K. The temperature dependence of resistivity shows Kondo behavior below 30K. The specific heat above 10K is well fitted by a sum of the electron contribution γT and the phonon contribution βT2, whereas the ratio C/T remarkably increase below 10K and is also well fitted by γ + β T2 with a huge γ value 1.46J/K2.mol below 2K, that is a typically of heavy fermion behavior.

AB - We found CeCuGa to be a heavy fermion compound with orthorhombic structure of CeCu2 type. In this report, we present the measurements of its resistivity from 0.5K to 300K and of specific heat from 1.5K to 30K. The temperature dependence of resistivity shows Kondo behavior below 30K. The specific heat above 10K is well fitted by a sum of the electron contribution γT and the phonon contribution βT2, whereas the ratio C/T remarkably increase below 10K and is also well fitted by γ + β T2 with a huge γ value 1.46J/K2.mol below 2K, that is a typically of heavy fermion behavior.

UR - https://www.scopus.com/pages/publications/0026375921

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DO - 10.1016/0921-4534(91)91440-F

M3 - Article

AN - SCOPUS:0026375921

SN - 0921-4534

VL - 185-189

SP - 2635

EP - 2636

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - PART 4

ER -

Specific heat and resistivity study of heavy fermion compound CeCuGa

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