Temperature dependencies of magnetization and hysteresis loops of composite films (CoFeB+SiO2) with different compositions and structure

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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 are characterized by a wider hysteresis loop and have 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.

作者简介

L. Kotov

Syktyvkar State University

Email: kotovin@mail.ru
Syktyvkar, Russia

A. Utkin

Syktyvkar State University

Syktyvkar, Russia

I. Semyashkin

Syktyvkar State University

Сыктывкар, Россия

Yu. Kalinin

Voronezh State Technical University

Voronezh, Россия

A. Sitnikov

Voronezh State Technical University

Voronezh, Россия

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