TY - JOUR
T1 - Enhancement of GHz electromagnetic wave absorption characteristics in aligned M-type barium ferrite Ba1-xLaxZn xFe12-x-y(Me0.5Mn0.5) yO19 (x = 0.0-0.5; y = 1.0-3.0, Me: Zr, Sn) by metal substitution
AU - Kagotani, T.
AU - Fujiwara, D.
AU - Sugimoto, S.
AU - Inomata, K.
AU - Homma, M.
PY - 2004/5
Y1 - 2004/5
N2 - The resonance absorption properties depend on the complex permeability μ = μ′ - jμ″, particularly μ″ = Ms/2H Aα and x of substitution amount for Ba and y of that one for Fe on the absorption properties of Ba ferrite compound. The c-axis aligned Zr-substituted samples (x = 0.0, y = 1.4) showed Ms = 76μWm/kg, HA = 0.21 MA/m, and μ′ = 7.2 and μ″ = 7.0. These μ′ and μ″ are significantly larger than those for (TiMn)-substituted samples. Sn or Zr is concluded to be effective in enhancing the absorption characteristics of M-type Ba ferrite absorber.
AB - The resonance absorption properties depend on the complex permeability μ = μ′ - jμ″, particularly μ″ = Ms/2H Aα and x of substitution amount for Ba and y of that one for Fe on the absorption properties of Ba ferrite compound. The c-axis aligned Zr-substituted samples (x = 0.0, y = 1.4) showed Ms = 76μWm/kg, HA = 0.21 MA/m, and μ′ = 7.2 and μ″ = 7.0. These μ′ and μ″ are significantly larger than those for (TiMn)-substituted samples. Sn or Zr is concluded to be effective in enhancing the absorption characteristics of M-type Ba ferrite absorber.
KW - EMI
KW - GHz band
KW - M-type Ba ferrite
KW - Magnetic resonance
KW - Microwave absorption
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U2 - 10.1016/j.jmmm.2003.12.878
DO - 10.1016/j.jmmm.2003.12.878
M3 - Article
AN - SCOPUS:23144444407
SN - 0304-8853
VL - 272-276
SP - e1813-e1815
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - SUPPL. 1
ER -