| Project/Area Number |
22740206
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics I
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
MATSUMOTO Yoshihiro 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 任期付研究員 (80455287)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 表面・界面 / グラフェン / 強磁性金属 / 界面 / 垂直磁気異方性 / X線磁気円二色性 / 分子スピントロニクス / スピントロニクス / X線吸収分光 |
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| Research Abstract |
In this study, the spin structures across the interface between single-layer graphene and a Ni(111) thin film are explored by employing the depth-resolved x-ray absorption and magnetic circular dichroism spectroscopy with the atomic layer resolution. The depth-resolved Ni L2,3-edge analysis clarifies that the Ni atomic layers adjacent to the interface show a transition of the spin orientation to the perpendicular one in contrast with the in-plane one in the bulk region. The C K-edge analysis reveals the intensifying of the spin-orbital interactions induced by the p-d hybridization at the interface as well as out-of-plane spin polarization at the p band region of graphene. The present study indicates the importance of the interface design at the atomic layer level for graphene-based spintronics.
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