Preparation of Sr-ferrite Thin Films Prepared by Sputtering Ar and Kr Mixture Gas.
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- Mizuno Keisuke
- Dept. of Physical Electronics, Graduate School of Science and Engineering, Tokyo Institute of Technology
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- Nakagawa Shigeki
- Dept. of Physical Electronics, Graduate School of Science and Engineering, Tokyo Institute of Technology
Bibliographic Information
- Other Title
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- ArとKr混合ガススパッタによるSrフェライト薄膜の作製
- Ar ト Kr コンゴウ ガススパッタ ニ ヨル Sr フェライト ハクマク ノ サクセイ
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Abstract
Magnetoplumbite type Sr-ferrite (SrM) thin films with high magneto crystalline anisotropy were deposited on Pt underlayers. It was found that Pt underlayer is effective to enhance crystallization and the c-axis orientation perpendicular to the film plane. In order to get high crystallization and high coercivity and large squareness ratio, high substrate temperature (> 500 °C) and large thickness of magnetic layer (> 50 nm) were required. In this study, SrM/Pt bilayers were prepared using mixture gasses of Ar and Kr as sputtering gas. Ar and Kr mixture gasses was effective to deposit SrM films with high c-axis orientation and better crystallization even though their thickness below 20 nm. SrM layer sputter-deposited using Ar and Kr mixture gas revealed high perpendicular coercivity Hc⊥ around 3 kOe. SrM layer were able to be dethickness below 20 nm, and crystallized at substrate temperature 450 °C.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 50 (2), 154-158, 2003
Japan Society of Powder and Powder Metallurgy
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Details 詳細情報について
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- CRID
- 1390282681283555712
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- NII Article ID
- 10010249160
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 6461521
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed