Spin-glass transition in Ni carbide single crystal nanoparticles with Ni3C - Type structure

S. Fujieda; T. Kuboniwa; K. Shinoda; S. Suzuki; J. Echigoya

doi:10.1063/1.4943608

Spin-glass transition in Ni carbide single crystal nanoparticles with Ni₃C - Type structure

S. Fujieda, T. Kuboniwa, K. Shinoda, S. Suzuki, J. Echigoya

Division of Inorganic Material Research

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

5 Citations (Scopus)

Abstract

Hexagonal shaped nanoparticles about 60 nm in size were successfully synthesized in tetraethylene glycol solution containing polyvinylpyrrolidone. By the analysis of the electron diffraction pattern, these were identified as a single crystal of Ni carbide with Ni₃C - type structure. Their magnetization curve at 5 K was not completely saturated under a magnetic field of 5 T. The thermomagnetization curves after zero-field cooling and after field cooling exhibited the magnetic cooling effect at low temperatures. Furthermore, the 2nd order nonlinear term of AC magnetic susceptibility exhibited a negative divergence at about 17 K. It is concluded that Ni carbide single crystal nanoparticles with the Ni₃C - type structure exhibit spin-glass transition at low temperatures.

Original language	English
Article number	056116
Journal	AIP Advances
Volume	6
Issue number	5
DOIs	https://doi.org/10.1063/1.4943608
Publication status	Published - 2016 May 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.4943608

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title = "Spin-glass transition in Ni carbide single crystal nanoparticles with Ni3C - Type structure",

abstract = "Hexagonal shaped nanoparticles about 60 nm in size were successfully synthesized in tetraethylene glycol solution containing polyvinylpyrrolidone. By the analysis of the electron diffraction pattern, these were identified as a single crystal of Ni carbide with Ni3C - type structure. Their magnetization curve at 5 K was not completely saturated under a magnetic field of 5 T. The thermomagnetization curves after zero-field cooling and after field cooling exhibited the magnetic cooling effect at low temperatures. Furthermore, the 2nd order nonlinear term of AC magnetic susceptibility exhibited a negative divergence at about 17 K. It is concluded that Ni carbide single crystal nanoparticles with the Ni3C - type structure exhibit spin-glass transition at low temperatures.",

author = "S. Fujieda and T. Kuboniwa and K. Shinoda and S. Suzuki and J. Echigoya",

note = "Funding Information: This research was partially supported by JSPS KAKENHI (Grants No. 15K13298 and No. 25709055). The authors acknowledge useful discussions with A. Fujita and K. Fukamichi. Publisher Copyright: {\textcopyright} 2016 Author(s).",

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doi = "10.1063/1.4943608",

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T1 - Spin-glass transition in Ni carbide single crystal nanoparticles with Ni3C - Type structure

AU - Fujieda, S.

AU - Kuboniwa, T.

AU - Shinoda, K.

AU - Suzuki, S.

AU - Echigoya, J.

N1 - Funding Information: This research was partially supported by JSPS KAKENHI (Grants No. 15K13298 and No. 25709055). The authors acknowledge useful discussions with A. Fujita and K. Fukamichi. Publisher Copyright: © 2016 Author(s).

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Hexagonal shaped nanoparticles about 60 nm in size were successfully synthesized in tetraethylene glycol solution containing polyvinylpyrrolidone. By the analysis of the electron diffraction pattern, these were identified as a single crystal of Ni carbide with Ni3C - type structure. Their magnetization curve at 5 K was not completely saturated under a magnetic field of 5 T. The thermomagnetization curves after zero-field cooling and after field cooling exhibited the magnetic cooling effect at low temperatures. Furthermore, the 2nd order nonlinear term of AC magnetic susceptibility exhibited a negative divergence at about 17 K. It is concluded that Ni carbide single crystal nanoparticles with the Ni3C - type structure exhibit spin-glass transition at low temperatures.

AB - Hexagonal shaped nanoparticles about 60 nm in size were successfully synthesized in tetraethylene glycol solution containing polyvinylpyrrolidone. By the analysis of the electron diffraction pattern, these were identified as a single crystal of Ni carbide with Ni3C - type structure. Their magnetization curve at 5 K was not completely saturated under a magnetic field of 5 T. The thermomagnetization curves after zero-field cooling and after field cooling exhibited the magnetic cooling effect at low temperatures. Furthermore, the 2nd order nonlinear term of AC magnetic susceptibility exhibited a negative divergence at about 17 K. It is concluded that Ni carbide single crystal nanoparticles with the Ni3C - type structure exhibit spin-glass transition at low temperatures.

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Spin-glass transition in Ni carbide single crystal nanoparticles with Ni₃C - Type structure

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