| Project/Area Number |
22221006
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nanostructural science
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| Research Institution | Osaka University |
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Principal Investigator |
MORITA SEIZO 大阪大学, 産業科学研究所, 特任教授 (50091757)
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| Co-Investigator(Kenkyū-buntansha) |
ABE Masayuki 大阪大学, 大学院基礎工学研究科, 教授 (00362666)
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| Co-Investigator(Renkei-kenkyūsha) |
SUGIMOTO Yoshiaki 大阪大学, 大学院工学研究科, 准教授 (00432518)
CUSTANCE Oscar 国立研究開発法人物質・材料研究機構, 先端的共通技術部門, グループリーダー (00444555)
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| Research Collaborator |
RUBEN Perez Universidad Autónoma de Madrid, Condensed Matter Physics, 教授
PAVEL Jelinek Academy of Sciences of the Czech Republic, Condensed Matter Physics, グループリーダー
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| Project Period (FY) |
2010-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥207,480,000 (Direct Cost: ¥159,600,000、Indirect Cost: ¥47,880,000)
Fiscal Year 2014: ¥22,360,000 (Direct Cost: ¥17,200,000、Indirect Cost: ¥5,160,000)
Fiscal Year 2013: ¥22,360,000 (Direct Cost: ¥17,200,000、Indirect Cost: ¥5,160,000)
Fiscal Year 2012: ¥26,130,000 (Direct Cost: ¥20,100,000、Indirect Cost: ¥6,030,000)
Fiscal Year 2011: ¥31,720,000 (Direct Cost: ¥24,400,000、Indirect Cost: ¥7,320,000)
Fiscal Year 2010: ¥104,910,000 (Direct Cost: ¥80,700,000、Indirect Cost: ¥24,210,000)
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| Keywords | 走査プローブ顕微鏡 / 原子間力顕微鏡 / 原子操作・組立 / 原子クラスタ / 二次元ナノ構造体 / 二次元ナノ空間 / 原子開閉 / 原子クラスタ・スイッチ / 国際研究者交流 / 多元素ナノ構造体 / 室温物性 / 多角的物性評価 / 原子操作 / 原子クラスタ組立 / 複合物性評価 / Si(111)7x7 / TiO_2 / 原子レベルナノ空間開閉 / Si(111)7x7ハーフユニットセル / ナノ空間 / 原子レベルのナノ空間開閉方法 / スペイン:チェコ:ドイツ |
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| Outline of Final Research Achievements |
We established a drift-free high-precision control and measurement technique of the combined atomic force microscope (AFM) / scanning tunneling microscope (STM) at room temperature (RT) comparable to an extremely low temperature. Then we developed 3 dimensional AFM/STM mapping techniques and clarified the exponential tip-sample distance dependence of tunneling current and chemical force at RT. Next we established the atom-gating technique of the nanospace barrier to create atom clusters consisted of a precisely controlled number of atoms from the thermal diffusion atoms confined in nanospace at RT. Besides we clarified the adsorption structure of created Pb trimer, and found tunneling current-induced concerted switching phenomenon of Pb2Si3 binary cluster. At last we also clarified the adsorption structure of Si tetramer, and observed sub-atomic STM image formed by high-frequency switching. These were elucidated in experiments and first-principles calculations.
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| Assessment Rating |
Verification Result (Rating)
A
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Assessment Rating |
Result (Rating)
A-: Progress in the research is steadily towards the initial goal. However, further efforts are necessary as a part of the research progress is delayed.
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