2007 Fiscal Year Final Research Report Summary
Development of low-energy electron diffraction microcope
| Project/Area Number |
17106001
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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 |
Thin film/Surface and interfacial physical properties
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| Research Institution | Waseda University |
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Principal Investigator |
OSHIMA Chuhei Waseda University, Faculty of Science and Engineering, Professor (10212333)
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| Co-Investigator(Kenkyū-buntansha) |
ROKUTA Eiji Waseda University, 理工学術院, associated professor (80298166)
ISHIKAWA Tsuyoshi Waseda University, 理工学術院, Assistant Professor (30409693)
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| Project Period (FY) |
2005 – 2007
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| Keywords | Single-atom electron source / Electron diffraction microscope / Electron diffraction of single molecule / Large-solid-angle energy analyzer / Extremely high vacuum |
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| Research Abstract |
1) We developed practical single-atom electron sources ; in the case of Au-W tips, electric fields in FIM evaporate the top atom. The spatial coherence of the electron beams was improved largely. We confirmed high efficiency of 80% as the local current/the total emission current was established in the conventional SEM optics.
2) We developed the low-energy diffraction microscopy, of which the spatial resolutions are at present 1.7nm in the SEM mode, and 100nm at the diffraction mode.
3) We developed new techniques to grow up single-atomic-layer graphene sheet, of which the area is several tenths micro-meter in each dimension.
4) By using the developed apparatus, for the first time, we observer low-energy electron transmission patterns of Au-thin film, a grapheme sheet and pyrophylite
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[Presentation] 低速電子回折顕微鏡の開発2007
Author(s)
石川 剛, 裏田 友洋, 趙 福來, 小粥 啓子, 米澤 彬, 野々 垣良三, 大島 忠平
Organizer
第68回応用物理学会学術講演会
Place of Presentation
北海道工業大学
Year and Date
2007-09-04
Description
「研究成果報告書概要(和文)」より
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