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Abstract <p>We studied the effect of the duration of hydrothermal synthesis in the range from 8 to 12 h on the formation of the structural and magnetic properties of cobalt ferrite CoFe<sub>2</sub>O<sub>4</sub> nanoparticles obtained in the presence of sodium dodecyl sulfate. It was shown that there is a transition from a unimodal particle distribution to a pronounced bimodal one, as well as an increase in crystallite sizes, microstrains, coercive force, and magnetic dipole–dipole interactions.</p>

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Study of the Formation of Bimodal Distribution and Enhancement of Interparticle Magnetic Interactions in CoFe2O4 Nanoparticles with Increasing Hydrothermal Synthesis Time

  • 期刊论文

  • 发表日期：

    2026年3月1日

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  • V. D. Salnikov,
  • V. G. Kolesnikova,
  • M. V. Gorshenkov,
  • A. S. Omelyanchik,
  • V. V. Rodionova

摘要

Abstract

We studied the effect of the duration of hydrothermal synthesis in the range from 8 to 12 h on the formation of the structural and magnetic properties of cobalt ferrite CoFe2O4 nanoparticles obtained in the presence of sodium dodecyl sulfate. It was shown that there is a transition from a unimodal particle distribution to a pronounced bimodal one, as well as an increase in crystallite sizes, microstrains, coercive force, and magnetic dipole–dipole interactions.