Magnetic Properties of Nanoparticles Formed on the Steel Surface Contacting with Aurum-Bearing Water Solutions

The magnetic properties of the nanosized structures formed via the rotation-corrosion dispergation route in the presence of aurum aguaforms have been studied using magnetometry. The differences in the magnetic properties of the samples are in evident due to the changes of the physical-chemical conditions during synthesis procedure, especially, aurum concentration, temperature and the presence of the preliminary formed Green Rust or lepidocrocite layers on the steel surface. All samples belong to superparamagnetics, hence, they do not show the remanence magnetization and coercitivity.