Magnetic and magneto-optical properties of Mn/sub x/CuBi(x=0.75-3.5) films

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