2009 Fiscal Year Final Research Report
Development of electron excited X-ray holography for micro-area 3D atomic structure analysis
| Project/Area Number |
18360300
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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 |
Physical properties of metals
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| Research Institution | Tohoku University |
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Principal Investigator |
HAYASHI Koichi Tohoku University, 金属材料研究所, 准教授 (20283632)
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| Co-Investigator(Kenkyū-buntansha) |
USAMI Noritaka 東北大学, 金属材料研究所, 准教授 (20262107)
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| Project Period (FY) |
2006 – 2009
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| Keywords | ホログラフィー / 電子顕微鏡 / 三次元原子像 / 局所構造 / 結晶構造 |
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| Research Abstract |
We proposed the "electron excited X-ray holography", which can record the atomic resolution hologram by measuring an electron beam direction dependence of characteristic X-ray intensities from a sample. In this work, Ti K hologram was measured with 6 keV electron beam and atomic images of neighboring Sr and Ti were successfully reconstructed from its Fourier transform. Moreover, as advanced applications of atomic resolution holography, local lattice distortions of the mixed crystal of the diluted magnetic semiconductor Zn_<0.4>Mn_<0.6>Te and the shape memory alloy of Ti_<50>Ni_<44>Fe_6 were successfully estimated.
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