Barium Hexaferrite Thick Films Made by Liquid Phase Epitaxy Reflow Method

In this paper, we report on the growth of BaFe 12 O 19 (BaM) thick films on sapphire Al 2 O 3 (0001) substrate. Our goal is to fabricate barium ferrite thick films which can be self-biased for circulator applications. We have modified the liquid phase epitaxy (LPE) method by conducting the experimen...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2006-10, Vol.42 (10), p.3338-3340
Main Authors: Kranov, Y.A., Abuzir, A., Prakash, T., McIlroy, D.N., Yeh, W.J.
Format: Article
Language:English
Subjects:
Aluminum oxide
BaFe
Barium
Barium compounds
Coercive force
Conduction
Cross-disciplinary physics: materials science
rheology
Epitaxial growth
Exact sciences and technology
Ferrite films
Ferrites
hexaferrite
Iron
Liquid phase epitaxy
liquid phase epitaxy (LPE) method
Magnetic films
Magnetism
Materials science
Melts
Microwave devices
Other topics in materials science
Physics
reflow
Sputtering
Substrates
Thick films
Weighing
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Summary:In this paper, we report on the growth of BaFe 12 O 19 (BaM) thick films on sapphire Al 2 O 3 (0001) substrate. Our goal is to fabricate barium ferrite thick films which can be self-biased for circulator applications. We have modified the liquid phase epitaxy (LPE) method by conducting the experiment in vacuum. A small piece of the melt weighing approximately 0.035 g was placed on 1times1 cm Al 2 O 3 substrate and remelted at 1200degC for 1 h. The thickness of our thick films grown by this reflow method range from 300 to 550 mum. The coercivities of the thick films in the perpendicular direction were about 100 Oe
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2006.879629