Journal
IEEE TRANSACTIONS ON MAGNETICS
Volume 42, Issue 10, Pages 3353-3355Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2006.879639
Keywords
BaFe11ScO19 hexaferrite; ferromagnetic resonance (FMR); textured compacts
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Sc is substituted for Fe in Ba M-type hexaferrite to reduce the anisotropy field and shift the ferromagnetic resonance (FMR) frequency to below 20 GHz. We have produced pure phase BaFe11 ScO19 powders having a platelet microstructure. These materials are pressed under an applied magnetic field of 95.5 X 10(5) A/m. Resulting compacts are sintered and are shown to have a clear uniaxial anisotropy with the c-axis perpendicular to the surface plane. Hysteresis loops display a squareness of 0.83 with a coercivity of similar to 186 kA/m. The X-band FMR power derivative linewidth is measured to be 79.6 kA/m.
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