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Abstract <p>Temperature dependences of magnetization of composite films (CoFeB + SiO<sub>2</sub>) with different concentrations of metal alloy <i>x</i> = 45–85 at % with different micro- and nanostructure at temperatures of 2–400 K in magnetic fields of 5 mT and 5 T were obtained. Hysteresis loops of magnetization of films with different <i>x</i> in magnetic fields up to 5 T at temperatures of 2, 100, 300, and 400 K were obtained. It was shown that films with granular structure were characterized by a wider hysteresis loop and had a stronger dependence of magnetization on temperature compared to films with granular-percolation structure and films with a structure in the form of a metal matrix with dielectric inclusions.</p>

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Temperature Dependences of Magnetization and Hysteresis Loops of Composite Films (CoFeB + SiO2) with Different Compositions and Structure

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • L. N. Kotov,
  • A. A. Utkin,
  • I. V. Semyashkin,
  • Yu. E. Kalinin,
  • A. V. Sitnikov

摘要

Abstract

Temperature dependences of magnetization of composite films (CoFeB + SiO2) with different concentrations of metal alloy x = 45–85 at % with different micro- and nanostructure at temperatures of 2–400 K in magnetic fields of 5 mT and 5 T were obtained. Hysteresis loops of magnetization of films with different x in magnetic fields up to 5 T at temperatures of 2, 100, 300, and 400 K were obtained. It was shown that films with granular structure were characterized by a wider hysteresis loop and had a stronger dependence of magnetization on temperature compared to films with granular-percolation structure and films with a structure in the form of a metal matrix with dielectric inclusions.