Zn^<2+>安定化La含有M型フェライトの合成と磁気的性質 Synthesis and Magnetic Properties of Zn^<2+> Stabilized La M-type Ferrite
The crystal structure and magnetic properties of Zn-stabilized La M-type ferrite with magnetoplumbite structure were studied. The single phase of M-type ferrite was obtained by using conventional ceramic techniques with nominal composition of LaZn<SUB>0.5</SUB>Fe<SUB>11.3</SUB> O<SUB>19</SUB>. It was confirmed that the Zn-stabilized La M-type ferrite had a hexagonal symmetry (P6<SUB>3</SUB>/mmc) with lattice constants of a=0.5890, c=2.2926nm. The c-axis length was smaller than that of Sr or Ba M-type ferrite. The magnetization of this ferrite is 81.4μWb⋅m⋅kg<SUP>-1</SUP> at room temperature at the applied field of 1200kA⋅m<SUP>-1</SUP>, and the Curie temperature is 649K.
粉体および粉末冶金 44(1), 22-26, 1997-01-15
Japan Society of Powder and Powder Metallurgy