TY - JOUR
T1 - Bias Magnetic Field Dependence of RF Permeability in Thin Permalloy Films
AU - Iwasaki, H.
AU - Akiyama, J.
AU - Yatabe, S.
AU - Chiba, S.
PY - 1987/7
Y1 - 1987/7
N2 - Dependence of RF permeability (μRF = μ ′ RF − j μ″RF) on a bias magnetic field (H: corresponding to a signal field) in a permalloy film, when H and RF exciting magnetic fields (HRF) are in the direction of the hard axis in Permalloy films, was analyzed with the film taken as a single domain, the demagnetizing field in the film plane taken as 0, HRF assumed to be sufficiently small compared with the anisotropic field Hk, and H assumed to be static. It was found that the μ’RF change is sharp at ω < ωk (ωβ: ferromagnetic resonance frequency at H = 0) and the μ” RF change is sharp at ω ≃ ωk.
AB - Dependence of RF permeability (μRF = μ ′ RF − j μ″RF) on a bias magnetic field (H: corresponding to a signal field) in a permalloy film, when H and RF exciting magnetic fields (HRF) are in the direction of the hard axis in Permalloy films, was analyzed with the film taken as a single domain, the demagnetizing field in the film plane taken as 0, HRF assumed to be sufficiently small compared with the anisotropic field Hk, and H assumed to be static. It was found that the μ’RF change is sharp at ω < ωk (ωβ: ferromagnetic resonance frequency at H = 0) and the μ” RF change is sharp at ω ≃ ωk.
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U2 - 10.1109/TJMJ.1987.4549568
DO - 10.1109/TJMJ.1987.4549568
M3 - Article
AN - SCOPUS:0022094694
SN - 0882-4959
VL - 2
SP - 663
EP - 664
JO - IEEE Translation Journal on Magnetics in Japan
JF - IEEE Translation Journal on Magnetics in Japan
IS - 7
ER -