Numerical Investigation of Stripe Structures in Ferromagnetic Thin Films with Perpendicular Anisotropy
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概要
- 論文の詳細を見る
Stripe structures in ferromagnetic thin films with perpendicular anisotropy and quality factor Q < 1 are numerically investigated using energy minimization. This formulation is applied to films with NiFe-type material parameters, high anisotropy (O(100) Oe) and thickness in the range of 〜 1000 - 2500 Å. For a given thickness, these films undergo a transition from a uniform in-plane state to a stripe state characterized by periodic out-of-plane tilt of magnetization as the anisotropy is increased above a critical value. The critical anisotropy decreases with increasing thickness; this critical relationship is calculated and is found to agree well with previous analytic results. The ratio of the stripe-state wavelength to film thickness is 2 on the critical focus but decreases as either the anisotropy or the film thickness is increased. The stray field outside the film surface has an amplitude O(10) Oe and submicron period.
- 社団法人応用物理学会の論文
- 1993-09-15
著者
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Pant B
Kyushu Univ. Fukuoka Jpn
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Matsuyama Kimihide
Department of Electronic Device Engineering, Kyushu University
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PANT Bharat
Department of Electrical Engineering, Kyushu University
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Pant Bharat
Department Of Electrical Engineering Kyushu University:solid State Electronics Center Honeywell Inc.
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Matsuyama Kimihide
Department Of Electrical Engineering Kyushu University
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MATSUYAMA Kimihide
Department of Electrical Engineering, Kyushu University
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