| abstract |
Provided are ferrite particles and ferrite powder having excellent orientation, filling properties and magnetic properties. A ferrite particle containing hexagonal ferrite, having a plate ratio of less than 1.5 and having a plate diameter of 40 nm or less, and a plurality of the ferrite particles, the average plate ratio being less than 1.5, and The ferrite powder has an average plate diameter of 40 nm or less, and includes a precursor synthesis step for synthesizing a ferrite precursor by a liquid phase reaction method, and a ferrite formation step for synthesizing ferrite particles by subjecting the ferrite precursor to heat treatment. [Selection] Figure 1 |