Investigation on the magnetic anisotropy of particulate and thin film recording media

Obtaining and Structural Characterization of M-type Hexaferrites Doped with Two Cations in the Fe3+ Sites

“…In the case of two dopants, a number of different combinations have been investigated, such as (Co 2+ , Ti 4+ ) [5,10,11], (Co 2+ , Sn 4+ ) [3], (Ni 2+ , Zr 4+ ) [12], (Zn 2+ , Zr 4+ ) [13] and (Zn 2+ , Ti 4+ ) [14], among others. Substitution is carried out in dependence on the required material properties, according to its use, since the magnetic properties of BaM have a strong dependence on the substitution in the Fe 3+ sites.…”