study of electronic state mapping using oxygen
| Project/Area Number |
26706015
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Thin film/Surface and interfacial physical properties
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥25,090,000 (Direct Cost: ¥19,300,000、Indirect Cost: ¥5,790,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
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| Keywords | EELS / STEM / 電子状態マッピング / 電子顕微鏡 / 電子エネルギー損失分光法 / 状態分析 / 局所状態解析 |
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| Outline of Final Research Achievements |
This research project intends to the realization of electronic state mapping of oxygen with atomic resolution using scanning transmission electron microscopy (STEM) and electron energy loss spectroscopy (EELS).First of all, we established a method for measuring high signal-to-noise ratio spectrum from individual atomic site without damage.Then, we succeeded for the first time in atomic-resolution two-dimensional mapping of holes in cuprate superconductors using an advanced technique. In addition, we have demonstrated the anisotropic chemical bond related to the difference between px and py orbitals was observed with atomic resolution.The results enables atomic-resolution anisotropic spectroscopy and is expected to give complementary information to the polarization-dependent X-ray absorption spectroscopy (XAS) which is widely used.
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Report
(5 results)
Research Products
(18 results)
