Study on catalytic activity of oxide surface using single molecule labeling and spin polarized tunneling electron spectroscopy
| Project/Area Number |
16H03863
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Thin film/Surface and interfacial physical properties
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| Research Institution | Tohoku University |
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Principal Investigator |
Komeda Tadahiro 東北大学, 多元物質科学研究所, 教授 (30312234)
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| Co-Investigator(Kenkyū-buntansha) |
道祖尾 恭之 東北大学, 多元物質科学研究所, 助教 (10375165)
高岡 毅 東北大学, 多元物質科学研究所, 講師 (90261479)
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2017: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
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| Keywords | 走査トンネル顕微鏡 / スピン / 近藤効果 / スピン偏極STM / 欠陥 / 酸化物 / 走査プローブ顕微鏡 / 格子欠陥 / １分子計測（SMD) / 触媒・化学プロセス / スピン検出 / 欠陥準位 / スピンラベル / １分子計測(SMD) / 酸化物触媒 / 酸化物欠陥 |
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| Outline of Final Research Achievements |
For the chemical reactions on the surfaces, including catalytic reactions, some special sites of the surface like as the lattice defects play a critical role in the determination of the reaction path. However, the ratio of the number of defects against the total number of the surface atoms is tiny, which makes the chemical analysis difficult. STM can give local structure and electronic information. However, compare to the topography and the LDOS information, the spin information provided by ESR and NMR can give us higher sensitivity. In this research, we developed the techniques to identify the spin state of the molecules adsorbed on the surface.
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| Academic Significance and Societal Importance of the Research Achievements |
スピンを化学分析に用いる手法は実は身近なところで大変重要になっており、医療で用いられるMRI検査も、核スピンを位置でマッピングしたもので、特定箇所の変化した化学状態を検知することで、たとえば癌の診断に用いられる。しかしその空間分解能はいまだミクロンスケールには達しておらず、本研究で行ったトンネル顕微鏡を用いた解析は本質的に原子レベルの分解法を持つが、現在熾烈な競争で開発が進んでいる。ナノスケールでの空間分解能をもったスピン検出が開発されたならば大きなインパクトを持つ。
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Report
(4 results)
Research Products
(15 results)
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[Journal Article] 83.Atomic-scale characterization of the interfacial phonon in graphene/SiC2017
Author(s)
E. Minamitani, R. Arafune, T. Frederiksen, T. Suzuki, S. M. F. Shahed, T. Kobayashi, N. Endo, H. Fukidome, S. Watanabe, T. Komeda,
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Journal Title
Physical Review B
Volume: 96
Pages: 155431-155431
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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