Abstract

Next generation magnetic microwave devices require ferrite films to be thick (>300 μm), self-biased (high remanent magnetization), and low loss in the microwave and millimeter wave bands. Here we examine recent advances in the processing of thick Ba-hexaferrite (M-type) films using pulsed laser deposition (PLD), liquid-phase epitaxy, and screen printing. These techniques are compared and contrasted as to their suitability for microwave materials processing and industrial production. Recent advances include the PLD growth of BaM on wide-band-gap semiconductor substrates and the development of thick, self-biased, low-loss BaM films by screen printing.

Notes

Originally published in Journal of Applied Physics, vol.99, no.8, April 2006. doi: 10.1063/1.2165145

Keywords

Ba-hexaferrite films, pulsed laser deposition

Subject Categories

Ferrites, Thin films, Microwave devices

Disciplines

Chemical Engineering | Electrical and Computer Engineering

Publisher

American Institute of Physics

Publication Date

4-2006

Rights Information

Copyright 2006

Rights Holder

American Institute of Physics

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