Local spin-moment analysis realized by dynamical diffraction effects on inelastic electron scattering theory and experiment
| Project/Area Number |
24686070
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Physical properties of metals
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Research Collaborator |
MUTO Shunsuke 名古屋大学, エコトピア科学研究所, 教授 (20209985)
RUSZ Jan ウプサラ大学, 天文物理学研究所, 助教授
OPPENEER Peter ウプサラ大学, 天文物理学研究所, 教授
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥21,970,000 (Direct Cost: ¥16,900,000、Indirect Cost: ¥5,070,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
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| Keywords | 電子磁気円二色性 / 電子線エネルギー損失分光 / 走査透過電子顕微鏡 / スピンモーメント / 磁性材料 / 電子磁気円偏向二色性 / 電子磁気直線偏向二色性 / 電子エネルギー損失分光 / 透過型電子顕微鏡 / Co / Fe / NiFe2O4 / 電子磁気円２色性 / 電線エネルギー損失分光 / 超高圧走査透過電子顕微鏡 / 強磁性材料 / 国際研究者交流ウプサラ / 国際情報交流ユーリッヒ / ナノ分析 / 磁気モーメント / EMCD / EMLD / 統計的解析 |
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| Outline of Final Research Achievements |
Schattschneider et al. reported that the same magnetic signals as those utilized in x-ray synchrotron facility can realize by using scanning transmission electron microscope equipped with electron energy loss spectroscopy. Because the signal intensities of usual instruments decreased significantly as the sample thickness increased, we could not utilized the magnetic signals to local magnetic analysis on real materials, however. In the present research, we showed that we could keep the magnetic signal intensities of relatively thick samples when we used an ultra-high voltage electron microscope with high kinetic energy electro as a probe, enabling us to acquire a quantitative magnetic signal from a thin film of iron nano particles. When we carefully fixed the measurement conditions with a guide of theoretical calculation of magnetic signals, we quantitatively observed the anisotropic magnetic signal intensities reflecting the magneto crystalline anisotropy of cobalt.
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Report
(4 results)
Research Products
(31 results)
