期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 272, 期 -, 页码 E1813-E1815出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2003.12.878
关键词
microwave absorption; M-type Ba ferrite; GHz band; magnetic resonance; EMI
The resonance absorption properties depend on the complex permeability mu = mu' - j mu, particularly mu = M-s/2H(A)alpha 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 M-s = 76 mu Wm/kg, H-A = 0.21 MA/m, and mu' = 7.2 and mu = 7.0. These mu' and mu 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. (C) 2003 Elsevier B. V. All rights reserved.
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