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US 2019/0318858 A1Published application
Textured planar m-type hexagonal ferrites and methods of use thereof
AssigneeRogers Corporation
InventorsYAJIE CHEN, KEVIN RING, LI ZHANG, MICHAEL S. WHITE
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Abstract
A grain-oriented M-type hexagonal ferrite has the formula MeFe12O19, and a dopant effective to provide planar magnetic anisotropy and magnetization in a c-plane, or a cone anisotropy, in the hexagonal crystallographic structure wherein Me is Sr+, Ba2+ or Pb2+, and wherein greater than 30%, preferably greater than 80%, of c-axes of the ferrite grains are aligned perpendicular to the c-plane.
Claims21
A grain-oriented M-type hexagonal ferrite having the formula
- MeFe12O19,
- and a dopant effective to provide planar magnetic anisotropy and magnetization in a c-plane, or a cone anisotropy, in the hexagonal crystallographic structure, wherein Me is Sr+, Ba2+ or Pb2+, and
- wherein greater than 30% of grains of the ferrite are aligned along the c-axis of the crystal structure, perpendicular to the c-plane.
Dependencies are inferred from the claim text.