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

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

doi:10.1051/epjconf/201818504005

Proceedings

Open Access

EPJ Web of Conferences 185, 04005 (2018)
https://doi.org/10.1051/epjconf/201818504005

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

Artem Vdovichenko¹^,2^⋆, Dmitry Streltsov¹^,2, Anton Orekhov¹, Alexander Vasiliev¹, Yan Zubavichus¹, Evgenii Grigoriev¹, Sergei Zavyalov¹, Leonid Oveshnikov¹^,3 and Sergei Chvalun¹^,2

¹ National Research Center "Kurchatov Institute", 123182 Moscow, Russia
² N.S. Enikolopov Institute of Synthetic Polymer Materials RAS, 117393 Moscow, Russia
³ P.N. Lebedev Physical Institute RAS, 119991 Moscow, Russia

^⋆ e-mail: vdartem@ya.ru

Published online: 4 July 2018

Abstract

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.

© The Authors, published by EDP Sciences, 2018

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