Electrostatic potential analysis of ferroelectric domains using convergent-beam electron diffraction
| Project/Area Number |
20340070
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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 |
Condensed matter physics I
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| Research Institution | Tohoku University |
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Principal Investigator |
TSUDA Kenji 東北大学, 多元物質科学研究所, 准教授 (00241274)
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| Co-Investigator(Renkei-kenkyūsha) |
TERAUCHI Masami 東北大学, 多元物質科学研究所, 教授 (30192652)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2010: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2009: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2008: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
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| Keywords | 誘電体物性 / 静電ポテンシャル分布 / 電子顕微鏡 / 収束電子回折(CBED) / 電子線ホログラフィー |
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| Research Abstract |
An electrostatic potential analysis method using convergent-beam electron diffraction has been successfully developed, which enables us to determine electrostatic potential distribution from a nanometer-scale specimen area. Using this method, ferroelectric polarizations of ferroelectric materials such as LiNbO3 were observed through electrostatic potential. The method was also applied to visualization of orbital ordered states of 3d electrons in strongly-correlated electron systems.
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Report
(4 results)
Research Products
(91 results)
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[Presentation] Study of crystal and electronic structures of boron nanobelt using convergent-beam electron diffraction and electron energy-loss spectroscopy2009
Author(s)
K. Tsuda, D. Morikawa, K. Iwasaki, Y. Sato, M. Terauchi, K. Kirihara, K. Kawaguchi, T. Sasaki, N. Koshizaki, H. Hyodo and K. Kimura
Organizer
15th International Symposium on Intercalation Compounds (ISIC15), Satellite Meeting, New Materials Science Using Regulated Nano Spaces-Strategy in Ubiquitous Elements
Place of Presentation
Tsinghua University, Beijing, China
Related Report
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