EPJ Web of Conferences (Jan 2018)

Magnetic properties of poly(p-xylylene)-Ni nanocomposites

  • Vdovichenko Artem,
  • Streltsov Dmitry,
  • Orekhov Anton,
  • Vasiliev Alexander,
  • Zubavichus Yan,
  • Grigoriev Evgenii,
  • Zavyalov Sergei,
  • Oveshnikov Leonid,
  • Chvalun Sergei

DOI
https://doi.org/10.1051/epjconf/201818504005
Journal volume & issue
Vol. 185
p. 04005

Abstract

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The dependence of electrical and magnetic properties on structure of thin poly(p-xylylene) - nickel nanocomposite films with Ni concentrations from 5 to 30 vol.% was studied. It was found that metal concentration strongly affects size and oxidation state of the nanoparticles. Effect of the filler content on electrical and magnetic properties of the nanocomposites was revealed. These properties are determined by percolation phenomenon, with the percolation threshold value of about 10 vol.%. The well pronounced magnetic hysteresis as well as ferromagnetic ordering were observed at Ni content above the percolation threshold. The diagrams of magnetic properties of these composites as a function of composition and temperature were elaborated.