Please use this identifier to cite or link to this item:
|Title:||Influence of Si concentration on the magnetization dynamics in as-sputtered FeCoSiN thin films at high frequencies|
|Authors:||Xu, F. |
|Citation:||Xu, F., Chen, X., Ma, Y., Phuoc, N.N., Zhang, X., Ong, C.K. (2008). Influence of Si concentration on the magnetization dynamics in as-sputtered FeCoSiN thin films at high frequencies. Journal of Applied Physics 104 (8) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3005879|
|Abstract:||In this work, the high-frequency magnetic permeability spectra of as-sputtered FeCoSiN films with various Si concentrations were investigated. The soft magnetic properties with an induced in-plane uniaxial anisotropy can only be obtained within some composition ranges because of the formation of different granular microstructures. The permeability spectra measured without any external fields (He) were well fitted based on the phenomenological Landau-Lifshitz-Gilbert equation. Results show that with the increase in Si concentration, the saturated magnetization 4π Ms, the resonance frequency fr, the permeability μ, and the qualify factor Q values decrease, while the damping coefficient α and resonant frequency linewidth Δf increase. The increase in Gilbert damping coefficient α or G is ascribed to the increase in mosaicity or magnetic ripples with higher volume proportion of Si-rich matrix. The investigations on Δf- He relations indicate the extrinsic damping contribution from the two-magnon scattering in FeCoSiN, which is suggested to be due to the change in the granular microstructures compared with FeCoN. © 2008 American Institute of Physics.|
|Source Title:||Journal of Applied Physics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on May 19, 2018
WEB OF SCIENCETM
checked on Apr 3, 2018
checked on May 18, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.