| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000)
|
|---|
| Outline of Final Research Achievements |
In this study, we developed convergent-beam reflection high-energy electron diffraction to obtain the information on atomic coordinates and electron density distributions at material surfaces. The electron gun consists of two condenser lens and enables to vary the convergence angle of the election beam at sample and screen positions. We measured diffraction discs for a Si(111)-7x7 surface and confirmed the intensity distribution originated from the surface structure. By further improvement of the intensity analysis, we are able to determine the electron density distributions at material surfaces, together with the atomic configurations.
|
