2004年1月
Composite nanogranular films of FePt-MgO with (001) orientation onto glass substrates
APPLIED PHYSICS LETTERS
- ,
- ,
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- 巻
- 84
- 号
- 3
- 開始ページ
- 404
- 終了ページ
- 406
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1063/1.1641168
- 出版者・発行元
- AMER INST PHYSICS
For perpendicular magnetic recording, a design of using MgO as a seed layer and an intermediate layer is introduced. By annealing the multilayer film with a stack structure of MgO/[FePt/MgO](3) at 600degreesC for 1 min, nanograins of FePt with a high perpendicular magnetic anisotropy are obtained on a glass substrate. This high magnetic anisotropy results from the (001) texture of L1(0) phase developed along the film normal. A thin MgO layer ranging 1.0 to 3.0 nm in thickness plays an important role in developing the (001) texture of L1(0) FePt and magnetically decoupling the FePt particles. Varying a layer thickness of the FePt layer enables to control the crystalline structure and the magnetic properties, resulting in the films with a controllable FePt grain size as small as several nanometers, a high remanence squareness, and a high coercivity. (C) 2004 American Institute of Physics.
- リンク情報
- ID情報
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- DOI : 10.1063/1.1641168
- ISSN : 0003-6951
- Web of Science ID : WOS:000188114300032