MAGNETIC AND MAGNETOOPTICAL PROPERTIES OF MNXCUBI (X=0.75-3.5) FILMS

Magnetic and magneto-optical properties of MnxCuBi (x = 0.75 - 3.5) th in films are presented. With increasing Mn concentration x, the perpen dicular anisotropy constant (K-u), the remanence squareness (S = M(r)/ M(s)) and the coercivity (H-c), of the perpendicular hysteresis loop i ncrease. Remanence squareness as high as 0.95 has been obtained. Kerr rotation (theta(k)) and ellipticity (eta(k)) spectra from all samples measured from substrate side are similar, with theta(k) exhibiting a b road peak in the blue wavelength region with maximum Kerr rotation up to 0.7 degrees.