Enhanced hexagonal ferrite material and methods of preparation thereof

摘要

Embodiments and aspects of the present invention relate to an enhanced hexagonal ferrite magnetic material doped with an alkali metal. The material retains substantial magnetic permeability up to frequencies in the GHz range with low losses. The material may be used in high frequency applications in devices such as transformers, inductors, circulators, and absorbers.

主权项

1. An alkali metal-doped hexaferrite having the formula Ba3-yMxCo2Fe24O41 where Ba is barium, M is at least one of potassium and rubidium, Co is cobalt, Fe is iron, O is oxygen, x is greater than zero and less than one, and y is greater than zero and less than or equal to x.