Structure and soft magnetic properties of Fe-Co-Ni-based multicomponent thin films

Abstract

Soft magnetic thin films with suitable uniaxial anisotropy and high saturation magnetization are required for high frequency applications, since the ferromagnetic resonance frequency (f FMR ) is proportional to the multiplication of the saturation magnetization and anisotropy magnetic field. In this study, multicomponents of Fe-Co-Ni-based soft magnetic thin films were deposited on the Si substrate by radio frequency (RF) magnetron sputtering with various Ar/N 2 ratios at room temperature. The composition, crystal structure, surface morphology, and magnetic domain were analyzed. Without nitrogen doping, the domain of the magnetic thin film was arranged randomly. The effect of N 2 content in the thin film on the magnetic properties was evaluated and further discussed. Magnetic properties, including saturation magnetization (M s ) and coercivity (H c ), were determined. The saturation magnetization of the undoped magnetic thin film was around 1.3 T. However, when the nitrogen was added, the magnitude of the anisotropy field could reach 30 Oe, while the saturation magnetization was around 1 T. It is expected that the derived magnetic thin film is a promising candidate for potential usage in high frequency inductors.

Soft Magnetic Properties of High-Entropy Fe-Co-Ni-Cr-Al-Si Thin Films

“…In brief, magnetic thin films are considered as the potential candidate for thin-film inductors with an aim to improve their M s , H k , ρ, and also compatibility with semiconductor manufacturing processes. Therefore, tremendous efforts have been devoted to developing better magnetic thin films over past decades [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19].…”

Microstructure and Properties of Coating of FeAlCuCrCoMn High Entropy Alloy Deposited by Direct Current Magnetron Sputtering

“…Moreover, HEA coatings have been proposed for the potential applications as protective films [8][9][10] , wear-resistant materials 11 , corrosion-resistant materials 12 , and coatings in communication devices 13 . That is due to their interesting properties, such as high hardness 14 , strength 15,16 , wear resistance 17,18 , and microstructure stability against heat treatment [19][20][21] .…”

Coatings of FeAlCoCuNiV high entropy alloy

“…[15][16][17][18] Moreover, HEA coatings have been proposed for the good application prospect as protective coatings, [19][20][21][22] wear-resistant materials, 23 corrosion-resistant materials, 24 oxidation resistance, 16 slurry erosion resistance 14 and coatings in communication devices. 25 It was found that addition of other element can improve the thermal stability of the coating. 26 In previous investigation, 27,28 we have prepared the nitride and oxide coatings HEA with good mechanical properties.…”