2010 Fiscal Year Final Research Report
Spin dynamics investigation of magnetic memory device materials by ferromagnetic resonance analysis
| Project/Area Number |
20560611
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical properties of metals
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| Research Institution | Yamagata University |
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Principal Investigator |
INABA Nobuyuki 山形大学, 大学院・理工学研究科, 教授 (50396587)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKAHASHI Yutaka 山形大学, 大学院・理工学研究科, 准教授 (00260456)
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| Project Period (FY) |
2008 – 2010
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| Keywords | ダンピング定数 / 強磁性共鳴 / 磁化反転速度 / 磁気記録 / 単結晶薄膜 |
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| Research Abstract |
We investigated damping constants α of Co, Ni, Fe, and these based alloy single crystal thin films by employing ferromagnetic resonance analysis. α of Co and Co-based alloy specimens with hcp crystal structure had the minimum value with applying the external field parallel to c axis of the specimen. The α values of Co and Ni-Fe specimens with fcc crystal structure had constant values, and did not depend on the crystal direction of the specimens.
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