Magnetic properties, adhesive characteristics, and optical properties of Co₄₀Fe₄₀W₂₀films

Abstract

X-ray diffraction patterns demonstrated a significant nanocrystalline body-centred cubic CoFe (110) structure when the thickness was between 60 and 90 nm, and displayed an amorphous status when the thickness was from 18 to 42 nm. The saturation magnetization (M s ) and lowfrequency alternate-current magnetic susceptibility (χ ac ) revealed a thickness effect owing to the nano-magneto crystalline anisotropy. The H c value was smaller than 2 Oe due to the small grain size distribution. The increased surface roughness could induce a greater pinning effect of the domain wall. The 90-mm thickness had the highest χ ac 0.27 value at an optimal resonance frequency (f res ) of 100 Hz. The highest surface energy was 44.72 mJ/mm 2 at 42 nm and demonstrated high adhesion. The transmittance decreased from 13.1% to 0.27% because the thicker thickness and interface effects inhibited the transfer of photon signals to the film, resulting in a low transmittance and high absorbance.

Co-TiO2 Nanoparticles as the Reinforcement for Fe Soft Magnetic Composites with Enhanced Mechanical and Magnetic Properties via Pulse Electrodeposition

“…Fe-Co alloys are one of the most important structural components due to their amazing magnetism properties [1,2]. All materials that are magnetized by the application of a magnetic field are called magnetic materials.…”