Thermodynamic properties of ferromagnetic Ce-compound, CeAgAl3

Takahiro Muranaka; Jun Akimitsu

doi:10.1016/j.physc.2007.03.127

Thermodynamic properties of ferromagnetic Ce-compound, CeAgAl₃

Takahiro Muranaka, Jun Akimitsu

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

8 Citations (Scopus)

Abstract

We successfully synthesized a new ferromagnetic Ce-compound, CeAgAl₃ (T_C = 3.0 K). From susceptibility measurement using the aliened crystal, effective Bohr magneton, μ_eff, and Weiss temperature, θ, were estimated to be about 2.23 μ_B and 10.1 K along ab-plane, respectively, indicating the tri-valent state for Ce and weak ferromagnetic interaction between Ce ions. In M-H curve, the magnetization along the ab-plane and the c-axis up to 5 T at 1.8 K exhibited ferromagnetic behaviour saturating over 0.2 T with small magnetic hysteresis and reached the values of about 1.07 μ_B and 0.75 μ_B, respectively. These values are somewhat smaller than the theoretical value for the saturated moment of free Ce³⁺ ion (μ_s = gJ = 2.14 μ_B).

Original language	English
Pages (from-to)	688-690
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	460-462 I
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2007.03.127
Publication status	Published - Sep 1 2007
Externally published	Yes

Keywords

Ce-compounds
CeAgAl
Ferromagnetic compound

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2007.03.127

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title = "Thermodynamic properties of ferromagnetic Ce-compound, CeAgAl3",

abstract = "We successfully synthesized a new ferromagnetic Ce-compound, CeAgAl3 (TC = 3.0 K). From susceptibility measurement using the aliened crystal, effective Bohr magneton, μeff, and Weiss temperature, θ, were estimated to be about 2.23 μB and 10.1 K along ab-plane, respectively, indicating the tri-valent state for Ce and weak ferromagnetic interaction between Ce ions. In M-H curve, the magnetization along the ab-plane and the c-axis up to 5 T at 1.8 K exhibited ferromagnetic behaviour saturating over 0.2 T with small magnetic hysteresis and reached the values of about 1.07 μB and 0.75 μB, respectively. These values are somewhat smaller than the theoretical value for the saturated moment of free Ce3+ ion (μs = gJ = 2.14 μB).",

keywords = "Ce-compounds, CeAgAl, Ferromagnetic compound",

author = "Takahiro Muranaka and Jun Akimitsu",

note = "Funding Information: TM thanks to Y. Ikeguchi and T. Komatsubara for useful suggestion about synthesizing material and F. Iwahori and J. Abe (Aoyama Gakuin Univ.) for useful discussion about structure analysis. This work was partly supported by the 21st COE program, “High-Tech Research Center” Project for Private Universities and a Grant-in-Aid for Scientific Research on Priority Area “Anomalous Quantum Materials” from MEXT (Ministry of Education, Culture, Sports, Science and Technology of Japan).",

year = "2007",

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doi = "10.1016/j.physc.2007.03.127",

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AU - Muranaka, Takahiro

AU - Akimitsu, Jun

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PY - 2007/9/1

Y1 - 2007/9/1

N2 - We successfully synthesized a new ferromagnetic Ce-compound, CeAgAl3 (TC = 3.0 K). From susceptibility measurement using the aliened crystal, effective Bohr magneton, μeff, and Weiss temperature, θ, were estimated to be about 2.23 μB and 10.1 K along ab-plane, respectively, indicating the tri-valent state for Ce and weak ferromagnetic interaction between Ce ions. In M-H curve, the magnetization along the ab-plane and the c-axis up to 5 T at 1.8 K exhibited ferromagnetic behaviour saturating over 0.2 T with small magnetic hysteresis and reached the values of about 1.07 μB and 0.75 μB, respectively. These values are somewhat smaller than the theoretical value for the saturated moment of free Ce3+ ion (μs = gJ = 2.14 μB).

AB - We successfully synthesized a new ferromagnetic Ce-compound, CeAgAl3 (TC = 3.0 K). From susceptibility measurement using the aliened crystal, effective Bohr magneton, μeff, and Weiss temperature, θ, were estimated to be about 2.23 μB and 10.1 K along ab-plane, respectively, indicating the tri-valent state for Ce and weak ferromagnetic interaction between Ce ions. In M-H curve, the magnetization along the ab-plane and the c-axis up to 5 T at 1.8 K exhibited ferromagnetic behaviour saturating over 0.2 T with small magnetic hysteresis and reached the values of about 1.07 μB and 0.75 μB, respectively. These values are somewhat smaller than the theoretical value for the saturated moment of free Ce3+ ion (μs = gJ = 2.14 μB).

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