TY - JOUR
T1 - Magnetic relaxation of normal-metal (NM)/80NiFe/NM films
AU - Mizukami, S.
AU - Ando, Y.
AU - Miyazaki, T.
N1 - Funding Information:
This work has been supported by the Storage Research Consortium, CREST of JST (Japan Science and Technology) and Grants-in-Aides for Scientific Research from the Ministry of Education, Science, Sports and Culture of Japan.
PY - 2002/2
Y1 - 2002/2
N2 - Ferromagnetic resonance was measured for Cu/80NiFe(Py)/Cu/Pt films with various thicknesses of Cu spacer (dCu) in order to clarify the mechanism of the enhancement of Gilbert damping parameter (G) for Pt/Py/Pt films reported previously. The peak-to-peak linewidth (ΔHPP) for the Cu/Py/Cu/Pt film was very large at dCu = 0 Å and decreased gradually with increasing dCu. The out-of-plane angular dependence of ΔHPP for Cu/Py/Cu/Pt films was measured and analyzed using Landau-Lifshitz-Gilbert equation, by taking into account the magnetic inhomogeneities. The value of G obtained from analysis of the Cu/Py/Cu/Pt film was about twice larger than that for Cu/Py/Cu film even at dCu = 100 Å and decreased gradually as dCu increased.
AB - Ferromagnetic resonance was measured for Cu/80NiFe(Py)/Cu/Pt films with various thicknesses of Cu spacer (dCu) in order to clarify the mechanism of the enhancement of Gilbert damping parameter (G) for Pt/Py/Pt films reported previously. The peak-to-peak linewidth (ΔHPP) for the Cu/Py/Cu/Pt film was very large at dCu = 0 Å and decreased gradually with increasing dCu. The out-of-plane angular dependence of ΔHPP for Cu/Py/Cu/Pt films was measured and analyzed using Landau-Lifshitz-Gilbert equation, by taking into account the magnetic inhomogeneities. The value of G obtained from analysis of the Cu/Py/Cu/Pt film was about twice larger than that for Cu/Py/Cu film even at dCu = 100 Å and decreased gradually as dCu increased.
KW - Ferromagnetic resonance
KW - Gilbert damping parameter
KW - Linewidth
KW - Permalloy
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U2 - 10.1016/S0304-8853(01)00525-X
DO - 10.1016/S0304-8853(01)00525-X
M3 - Article
AN - SCOPUS:0036465538
SN - 0304-8853
VL - 239
SP - 42
EP - 44
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - 1-3
ER -