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

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

研究成果: Article査読

4 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号056116
ジャーナルAIP Advances
6
5
DOI
出版ステータスPublished - 2016 5 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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