日本応用磁気学会誌
Online ISSN : 1880-4004
Print ISSN : 0285-0192
ISSN-L : 0285-0192
磁気物性・薄膜
Fe3O4-γFe2O3 中間酸化膜の保磁力に及ぼす内部応力の影響
森川 陽介並河 健山崎 陽太郎
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ジャーナル オープンアクセス

1985 年 9 巻 2 号 p. 219-222

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The influence of stress on the coercivity of Fe3O4-γFe2O3 intermediary films has been studied. In order to induce various stresses, intermediary films were prepared on various kinds of substrates which had different thermal expansion coefficients. The surfaces of the substrates were coated with an SiO2 layer prior to the film preparation in order to eliminate the difference in their chemical properties. The magnetic properties and plane distances of the Fe3O4-γFe2O3 intermediary films were measured. Films prepared on the substrates having smaller thermal expansion coefficients showed larger coercivity increases. A remarkable increase in coercivity was obtained only when the stress in the film was in tension.

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© 1985 (社)日本応用磁気学会
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