Development and application of STEM segmented detector for ceramic interfaces
| Project/Area Number |
23686093
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SHIBATA Naoya 東京大学, 工学(系)研究科(研究院), 准教授 (10376501)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥27,560,000 (Direct Cost: ¥21,200,000、Indirect Cost: ¥6,360,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2012: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2011: ¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
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| Keywords | STEM / 分割検出器 / セラミックス / 界面 / 原子・電子構造 / 軽元素 / 分割検出 |
|---|
| Research Abstract |
In this study, I developed new STEM imaging techniques based on the newly developed segmented-type detector for atomic resolution STEM. By using these new techniques, I show that we can directly observe light element atomic columns in ceramic interfaces with complex atomic structures simultaneously with heavy dopant elements. This means that we can fully determine atomic structure of ceramic interfaces through STEM observation. In addition, I could demonstrate that we can visualize local electric fields even at atomic dimensions by using the newly developed STEM. Moreover, we discovered very unique magnetic properties found at the dislocation cores of antiferromagnetic NiO. We could show that these properties are related to local nonstoichiometry of dislocation cores.
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Report
(4 results)
Research Products
(100 results)
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[Journal Article] Atomic structure of luminescent centers in high-efficiency Ce-doped w-AlN single crystal2014
Author(s)
R.Ishikawa, A.R.Lupini, F.Oba, S.D.Findlay, N.Shibata, T.Taniguchi, K.Watanabe, H.Hayashi, T.Sakai, I.Tanaka, Y.Ikuhara, and S.J.Pennycook
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Journal Title
Scientific Reports
Volume: 4
Issue: 1
Pages: 3778-3778
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Simultaneous visualization of oxygen vacancies and the accompanying cation shifts in a perovskite oxide by combining annular imaging techniques2012
Author(s)
S, Kobayashi, S, D, Findlay, N, Shibata, T, Hizoguchi, Y. Ikuhara, and T, Yamamoto
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Journal Title
Applied Physics Letters
Volume: 100
Issue: 19
Pages: 193112-193112
DOI
Related Report
Peer Reviewed
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