Structural and magnetic properties of Fe50Co50 system

The Fe50Co50 alloys were prepared by mechanical alloying of the Fe and Co powders using a high-energy ball mill. The Fe50Co50 system was also obtained as a thin film by the pulsed laser deposition method. Both powder and thin film samples were characterized by X-ray diffraction and Mِssbauer spectroscopy. The formation of the bcc-FeCo solid solution was investigated as a function of milling time. Both Fe50Co50 systems reveal similar magnetic hyperfine fields of about 35 T. Typically, the powders have random spin orientation, while the thin film shows an out-of-plane magnetic texture.