• Journal Article

Influence of Mo content on magnetic properties of GdCoMo amorphous thin films

Citation

Maksymowicz, L. J., Temple, D., Zuberek, R., & Mackowiak, W. (1985). Influence of Mo content on magnetic properties of GdCoMo amorphous thin films. Physica B+C, 130(1-3), 296-299. DOI: 10.1016/0378-4363(85)90243-8

Abstract

The influence of the Mo content in (Gd1?xCox)1?yMoy thin amorphous films was studied. Samples were prepared by the rf sputtering technique with x from 0.66 to 0.97 and y from 0.01 to 0.14. It was found that molybdenum influences the saturation magnetization, the g-factor and the uniaxial anisotropy field. Also surface modes in spin wave resonance in thin films (Gd1?xCox)1?yMoy x = 0.85?0.94, y = 0.01?0.12 were studied. The surface anisotropy constant was determined from the surface inhomogeneity (SI) model [1]. The fitted Ks values [2] agree with theoretically predicted ones. For some of our samples the best fit between model and experimental data was obtained when the surface anisotropy energy was assumed as a superposition of the uniaxial anisotropy term and a biaxial anisotropy term. The study of the influence of temperature and Mo content on the value of surface anisotropy constants shows that:

1. i) There is a critical temperature when the surface uniaxial anisotropy constant changes its character;

2. ii) an increasing Mo content makes the temperature dependence of the surface anisotropy constants more stabilized.