| Project/Area Number |
15K05237
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | 一般財団法人総合科学研究機構(総合科学研究センター(総合科学研究室)及び中性子科学センター(研究開発 |
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Principal Investigator |
Yanagimachi Osamu 一般財団法人総合科学研究機構(総合科学研究センター(総合科学研究室)及び中性子科学センター(研究開発, 総合科学研究センター, 特任研究員 (60005957)
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| Research Collaborator |
Suzuki Taku T. 物質・材料研究機構, 主席研究員
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
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| Keywords | 放射線・X線・粒子線 / 量子ビーム / １価ヘリウムビーム / スピン非対称性散乱 / 放射線・Ｘ線・粒子線 / He+ビーム / Ｈｅ＋ビーム |
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| Outline of Final Research Achievements |
The scattering of an electron-spin-polarized He+ beam on paramagnetic materials has an anomalously large asymmetric scattering component (ASC) around 10% which is 10000 times that expected from the spin-orbit coupling for the potential of the target nucleus. The scattering angle θ dependence of the ASC has been measured. It changes sign near 90° for some materials (for example, Au), while it does not change sign for other materials (for example, Pb). It is noted in this study that the spin-orbit interaction of electrons on the target in the electron-transfer intermediate state causes the ASC of He nucleus motion. The sign change appears in the weak-resonance domain in the case of d electron excitation, whereas the sign change disappears in the strong-resonance domain. Calculated results qualitatively agree with the material dependence of the ASC observed experimentally.
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