書誌事項
- タイトル別名
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- Strain-Dependent Elastic Constants and Magnetic Anisotropy of Co/Pt Superlattice Thin Films
- Co Pt チョウコウシ ハクマク ノ ダンセイ テイスウ ノ ヒズミ イゾンセイ ト ジキ イホウセイ
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In this paper, the contribution of magnetoelastic-anisotropy effect on perpendicular-magnetic anisotropy of Co/Pt superlattice thin films is studied considering the strain-dependent elastic constants. We measured the effective-magnetic-anisotropy energy changing the Pt-layer thickness (2 to 20 Å) keeping the Co-layer thickness unchanged (4 Å). The effective-magnetic-anisotropy energy changed depending on the Pt-layer thickness and showed a maximum near dPt=12 Å. This result is explained by calculating the magnetoelastic-anisotropy energy considering the change of the elastic constants caused by the lattice misfit. We measured anisotropic elastic constants of Co/Pt superlattice thin films by resonance-ultrasound-spectroscopy method coupled with laser-Doppler interferometry and the picosecond laser-ultrasound method. The measured elastic constants showed elastic anisotropy between the in-plane and out-of-plane directions. They agreed with those predicted from the strain-dependent elastic-constant model. The elastic constants show correlations with the perpendicular-magnetic anisotropy.
収録刊行物
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- 材料
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材料 54 (10), 1005-1011, 2005
公益社団法人 日本材料学会
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詳細情報 詳細情報について
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- CRID
- 1390282680395548544
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- NII論文ID
- 110006266399
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- NII書誌ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL書誌ID
- 7488464
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可