Author:
Uimin M A,Privalova D V,Volegov A S,Minin A S,Konev A S,Yermakov A Ye,Gaviko V S
Abstract
Abstract
TiO2-Co nanopowders were synthesized by the sol-gel method and gas condensation method. The structure of powders and its change during various heat treatments in air and hydrogen was investigated. The samples obtained by the gas condensation method contain ferromagnetic regions in the as-prepared state. This ferromagnetism does not disappear when annealed in air at 773 K. The magnetization curves of these powders are measured in the temperature range from 2 up to 773 K and the temperature dependence of the ferromagnetic contribution is analyzed.
Subject
General Physics and Astronomy