Abstract

To satisfy the requirement of designing magnetic flexible composites, Co–Ti co-substituted M-type barium hexagonal ferrite nano powders with tunable magnetization have been successfully fabricated by a chemical coprecipitation plus molten salts method. The molten salts provide a liquid phase for phase formation and crystal growth of the targeted doped ferrite phases, leading to the formation of nano powders consisting of single domain particles with less agglomerations and particle size ranging from 60 to 100 nm. The co-doping of Co2+ and Ti4+ in the ferrites reduces their axial magnetic anisotropy, resulting in tunable magnetic properties from hard to soft magnetization.

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