Cross-Sectional Observation of Fe 3 O 4 -γFe 2 O 3 Intermediate Thin Films

Fe 3 O 4 -γFe 2 O 3 intermediate films were investigated in terms of the microstructures which appeared in the crosssections of the films. The samples were prepared at the oxidation stage where the coercivity of the films rapidly increased. It was found that, in the intermediate films, there were tw...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 30; no. 3B; p. L489
Main Authors Sato, Masaru, Tatsuru Namikawa, Tatsuru Namikawa, Yohtaro Yamazaki, Yohtaro Yamazaki
Format Journal Article
LanguageEnglish
Published 01.03.1991
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Summary:Fe 3 O 4 -γFe 2 O 3 intermediate films were investigated in terms of the microstructures which appeared in the crosssections of the films. The samples were prepared at the oxidation stage where the coercivity of the films rapidly increased. It was found that, in the intermediate films, there were two layers parallel with the surface of the substrates. This structure is newly recognized in this system using a high-resolution transmission electron micro-scope. Furthermore, it was found that Fe 3 O 4 and γFe 2 O 3 phases coexist in the intermediate films, and that there was a considerable difference in the structure of grain boundaries between those two phases.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.30.L489