Alternate Title

Spinwave resonance in FeNiBSi films


Ferromagnetic resonance (FMR) measurements have been performed on thin films of Fe₈₀-xNixB₁₅Si₅ alloys (x = 5, 40, and 60). The effective magnetization (4πMeff), magnetic anisotropy field (HA), and g factor were measured. The values of g for all the films ranged between 1.90 < 2.11. Spin-wave resonance (SWR) excitations were observed for H, the magnetic field, applied perpendicular to the film plane. SWR fields were found to obey the n² law and yielded exchange constants in the range of A = O.2-L9x 10-6 ergs/cm. The nearest neighbor exchange parameter J was deduced from A and implies that J varies within a factor of 2 as the value of x changes. In one of the nickel-rich samples, the SWR fields appear to be linear with n implying nonuniform distribution of magnetization in the film.


Originally published in Journal of Applied Physics 63, 3805 (1988). DOI:10.1063/1.340620 (


magnetic anisotropy field, FMR, Fe₈₀-xNixB₁₅Si₅ alloys, 4πMeff

Subject Categories

Spin waves, Ferromagnetic resonance, Thin films, Magnetization


Electromagnetics and photonics


American Institute of Physics

Publication Date


Rights Information

Copyright 1988 American Institute of Physics.

Rights Holder

American Institute of Physics

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