Structural and Magnetic Studies of CoxFe100−x Thin Films Thermally Evaporated on Glass

Abstract

CoxFe100−x thin films are thermally evaporated under vacuum onto glass substrate. The structural and magnetic properties of these films are investigated as a function of cobalt content x. The X-ray patterns exhibit three diffraction Bragg peaks (110), (200), and (211) with a body centered cubic phase structure. The crystallite size parameter fluctuates with the composition. The lattice parameter decreases monotonically as the cobalt content increases. The saturation magnetization Ms evolution has been found to decrease with cobalt content increasing, following rigorously the Slater–Pauling curve. Relationships between coercivity, crystallite size, and surface roughness have been established.