Structure and soft magnetic properties of sputter deposited MnZn-ferrite films

M.F. Gillies, R. Coehoorn, J.B.A.D. van Zon, D. Alders

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Abstract

In this paper we report the soft magnetic properties of thin films of sputtered MnZn ferrite deposited on thermally oxidized Si substrates. A high deposition temperature, 600¿°C, together with the addition of water vapor to the sputtering gas was found to improve the initial ac permeability, µ. The highest value obtained was approximately 30. For MnZn-ferrite films with much larger grain sizes, as obtained by deposition on a polycrystalline Zn-ferrite substrate, a µ of 100 was obtained. The results are discussed in terms of the so-called nonmagnetic grain boundary model.
Original languageEnglish
Pages (from-to)6855-6857
Number of pages3
JournalJournal of Applied Physics
Volume83
Issue number11
DOIs
Publication statusPublished - 1998

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