Properties of amorphous CoZr(RE) (RE=Gd, Sm, Dy) films with various uniaxial anisotropies, prepared by a new process

Abstract

If a DC magnetic field is applied parallel to the plane of amorphous CoZr(RE) thin films during sputter depositing, uniaxial anisotropy is formed the direction of which depends upon the choice of RE substituted and its concentration. When RE = Gd a perpendicular anisotropy Kp forms over a large concentration range, a spin reorientation process being at the origin of the process. A well-defined Kp is developed also in CoFeZrGd and CoZrGdSm films. CoZrGdDy films exhibit simultaneously a perpendicular and an in-plane uniaxial anisotropy. The related magnetization process and domain structures are quite peculiar.

Amorphous Co-Ni-P Alloys with High Saturation Magnetization Produced by Electrodeposition

“…This has been attributed to novel mechanical, [1][2][3][4] magnetic [5][6][7][8] and catalytic [9][10][11] properties and excellent corrosion resistance [12][13][14][15][16][17] for these materials. Among magnetic amorphous materials, Cobased alloys are important and have been produced by various techniques including rapid quenching, 18,19) physical vapor deposition, 20) chemical or electroless plating 21,22) and electrodepostion.…”

Tuning of the microwave magnetization dynamics in CoZr-based thin films by Nd-doping

“…CoZr-based thin films with in-plane uniaxial magnetic anisotropy are often used in the microwave range due to their excellent soft magnetic properties. [1][2][3][4][5][6][7][8] Quite a few methods have been employed in modulating the magnetic properties of CoZr-based thin films. They include the composition control by Zr-doping, 1 post-annealing, 2 changing the film thickness, 3 or the thickness of Ag buffer layer, 4 inserting the nonmagnetic metallic interlayers, 5,6 doping the heavy rareearth (RE) elements, 7,8 and so on.…”