| abstract |
M type has a ferrite structure, Ca, and a rare earth element at least one containing La as a mandatory R element, Ba and, Fe and Co as the essential element, and Ca 1 -x- y R x Ba y Fe 2n - z Co z (where, (1-xy), x, y, z and n represent Ca, R element, Ba and Co content, and molar ratio, respectively, 0.2≤x≤0.65, 0.001≤y≤0.2, 0.03 And satisfying ≤ z ≤ 0.65, and 4 ≤ n ≤ 7}.n n n n Ferrite Sintered Magnets, Oxide Magnetic Materials |