Ellipsometric investigation of Fe-based amorphous thin films

FeSiB amorphous thin films deposited onto glass substrate by pulsed laser method are investigated. The used ablation target was made of Fe(79)Si(9)B(12) amorphous ribbons. The refractive index, extinction coefficient, magneto-optical constant and coercive force of the deposited films have been determined by means of ellipsometry and magneto-optical ellipsometry. The measurements made at 632.8 nm wavelength give 2.3, 1.75 and 0.0177-0.0663j for n, k and Q, respectively.