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Magnetic and Structural Characterizations of Co-based Heusler Nanoparticles Fabricated via Simple Co-precipitation Method

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Abstract

Nanoparticles of Co2FeAl magnetic alloy was successfully fabricated in the presence of a well-known capping agent, polyvinyl alcohol, as a polymer template. The magnetic properties were studied using hysteresis curve and first-order reversal curve (FORC) measurements at room temperature. FORC diagrams demonstrated a wide distribution of the coercive field owing to the presence of different particle sizes in products. TEM image also showed that the synthesized samples are composed of some large clusters containing a few smaller particles. The maximum value of magnetization (~76 emu/g) and coercivity (573 Oe) were obtained in the annealed sample with 5 °C/min. A wider distribution of grain size with a smaller average of 20.5 nm as well as lower-degree of crystallinity was observed in the sample annealed with higher rate of 10 °C/min.

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Acknowledgments

Authors are grateful to the University of Kashan for providing financial support to undertake this work by Grant No. (159271/331).

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Authors and Affiliations

  1. Institute of Nano Science and Nano Technology, University of Kashan, 87317–51167, Kashan, Islamic Republic of Iran

    Zahra Pezeshki-Nejad, Sima Alikhanzadeh-Arani & Masoud Salavati-Niasari

  2. Department of Physics, University of Kashan, 87317-51167, Kashan, Islamic Republic of Iran

    Mohammad Almasi-Kashi & Abdolali Ramazani

Authors
  1. Zahra Pezeshki-Nejad
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  2. Mohammad Almasi-Kashi
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  3. Sima Alikhanzadeh-Arani
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  4. Abdolali Ramazani
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  5. Masoud Salavati-Niasari
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Correspondence to Masoud Salavati-Niasari.

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Pezeshki-Nejad, Z., Almasi-Kashi, M., Alikhanzadeh-Arani, S. et al. Magnetic and Structural Characterizations of Co-based Heusler Nanoparticles Fabricated via Simple Co-precipitation Method. J Clust Sci 27, 1031–1039 (2016). https://doi.org/10.1007/s10876-015-0891-9

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