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Magnetic Properties and Local Atomic Ordering in Ce(Fe1 – xSix)2 Compounds with a Silicon Content x ≤ 0.05

Physics of Metals and Metallography volume 123, pages 552–558 (2022)Cite this article

Abstract

To specify what triggers the magnetostructural transition in CeFe2 doped with silicon, the temperature dependences of the magnetization, as well as the initial magnetic susceptibility and field dependences of the magnetization of the rare-earth intermetallic compounds Ce(Fe1 – xSix)2 with the silicon content x ≤ 0.05, were measured. The transition temperature to the magnetically ordered state and the average magnetic moment at Fe atoms were determined, and the magnetic contribution to the entropy change was estimated. Mössbauer spectra of Ce(Fe1 – xSix)2 (x ≤ 0.05) in the paramagnetic state were measured with a discretization of velocity scale of 512 channels, processing of which served to confirm the earlier suggested local ordering of Si atoms in the Fe sublattice.

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Funding

Structural attestation of the samples, magnetic and Mossbauer measurements were carried out in the Collaborative Access Center of the Institute of Metal Physics, Ural Branch, RAS. The study was performed in terms of state assignment of the Ministry of Science and Higher Education of the Russian Federation on theme Magnet (no. АААА-А18-118020290129-5) and in part was supported by the Russian Foundation for Basic Research and government of Sverdlovsk region (project no. 20-42-660008).

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Authors and Affiliations

  1. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 620108, Ekaterinburg, Russia

    S. P. Naumov, N. V. Mushnikov, P. B. Terentev & N. M. Kleinerman

  2. Ural Federal University Named after the First President of Russia B.N. Yeltsin, 620002, Ekaterinburg, Russia

    S. P. Naumov, N. V. Mushnikov & P. B. Terentev

Authors
  1. S. P. Naumov
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  2. N. V. Mushnikov
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  3. P. B. Terentev
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  4. N. M. Kleinerman
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Correspondence to S. P. Naumov.

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Translated by N. Kolchugina

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Naumov, S.P., Mushnikov, N.V., Terentev, P.B. et al. Magnetic Properties and Local Atomic Ordering in Ce(Fe1 – xSix)2 Compounds with a Silicon Content x ≤ 0.05. Phys. Metals Metallogr. 123, 552–558 (2022). https://doi.org/10.1134/S0031918X22060114

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  • DOI: https://doi.org/10.1134/S0031918X22060114

Keywords:

  • cubic Laves phase
  • rare-earth intermetallics
  • magnetic susceptibility
  • magnetization
  • magnetocaloric effect
  • Mössbauer spectroscopy