• DocumentCode
    767407
  • Title

    Textured Sc-Doped Barium–Ferrite Compacts for Microwave Applications Below 20 GHz

  • Author

    Sakai, Tomokazu ; Chen, Yajie ; Chinnasamy, C.N. ; Vittoria, C. ; Harris, V.G.

  • Author_Institution
    Dept. of Electr. & Comput. Eng., Northeastern Univ.
  • Volume
    42
  • Issue
    10
  • fYear
    2006
  • Firstpage
    3353
  • Lastpage
    3355
  • Abstract
    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 95.5times10 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 ~186 kA/m. The X-band FMR power derivative linewidth is measured to be 79.6 kA/m
  • Keywords
    barium compounds; ferrite devices; ferrites; ferromagnetic resonance; magnetic microwave devices; scandium compounds; BaFeScO; anisotropy field; ferromagnetic resonance frequency; hexaferrite; hysteresis loops; magnetic field; microwave applications; platelet microstructure; power derivative linewidth; textured barium-ferrite compacts; uniaxial anisotropy; Anisotropic magnetoresistance; Displays; Iron; Magnetic fields; Magnetic hysteresis; Magnetic materials; Magnetic resonance; Microstructure; Powders; Resonant frequency; BaFe; ferromagnetic resonance (FMR); textured compacts;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2006.879639
  • Filename
    1704624
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=767407