Structure and Magnetic Properties of Multilayer Nanosystems Based on Thin Films of Cobalt and Chromium-Group Metals Deposited by Magnetron Sputtering

In cobalt-based thin-film nanostructures with chromium-group metal buffer layers, formed by magnetron sputtering, features of the conductivity of buffer layers of varying thicknesses and magneto-optical response of cobalt films on tungsten are identified. Analysis of electron-microscopy data, X-ray phase analysis, and magneto-optical measurements reveals specific structure and properties of tungsten films. The resistance of these films depends on their thickness and is determined by charge transfer between crystallites. The tungsten/cobalt layer nanostructures do not exhibit magnetic anisotropy.