Spin-glass transition in Ni carbide single crystal nanoparticles with Ni3C − type structure | Zendy

Shun Fujieda | Zendy; T. Kuboniwa | Zendy; Kōzō Shinoda | Zendy; Shigeru Suzuki | Zendy; J. Echigoya | Zendy

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

Author(s) -

Shun Fujieda,

T. Kuboniwa,

Kōzō Shinoda,

Shigeru Suzuki,

J. Echigoya

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4943608

Subject(s) - materials science , spin glass , magnetization , nanoparticle , condensed matter physics , carbide , crystal structure , crystallography , analytical chemistry (journal) , magnetic field , nanotechnology , metallurgy , chemistry , physics , quantum mechanics , chromatography

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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