Roman Zavornitsyn, Mikhail Milyaev, Larisa Naumova, Irina Maksimova, Anastasia Pavlova, Tatyana Chernyshova, Vyacheslav Proglyado, Vladimir Ustinov
The microstructure, transport, and galvanometric properties of Ni48Fe12Cr40 thin films of various thickness, obtained by magnetron sputtering, were studied in the temperature range of 93-293 K. The Ni48Fe12Cr40 film with thickness of 5 nm has been found to be X-ray amorphous and exhibits a negative temperature coefficient of resistance. The observation of anisotropic magnetoresistance, as well as anomalous and planar Hall effect, indicates the presence of ferromagnetic ordering in this sample. The increase of the Ni48Fe12Cr40 film thickness to 8 nm leads to the crystallization and texture formation, which promotes more uniform distribution of Cr atoms in Ni-Fe matrix and suppression of the long-range ferromagnetic order.