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Atomic imaging of BaTiO$$_{3}$$ by multiple-wavelength neutron holography

白色中性子ホログラフィーによるBaTiO$$_{3}$$の原子イメージング

山川 昂大*; 中田 肇*; 木村 耕治*; 及川 健一   ; 原田 正英   ; 稲村 泰弘  ; 大山 研司*; 林 好一*

Yamakawa, Kota*; Nakada, Hajime*; Kimura, Koji*; Oikawa, Kenichi; Harada, Masahide; Inamura, Yasuhiro; Oyama, Kenji*; Hayashi, Koichi*

Atomic resolution holography is a method to obtain atomic arrangements around specific elements. In particular, neutron holography enables the observation of light elements such as O atoms, which are difficult to observe using X-rays. In this study, neutron holography experiments were conducted on BaTiO$$_{3}$$. As a result, clear atomic images of O surrounding Ti were successfully observed. Based on the calculation of image intensity as a function of atomic displacement, the displacement of the O atom relative to the Ti atom was estimated to be 0.23 $AA from the observed image intensity of the O atom. Furthermore, considering the atomic displacement parameter, the difference in position between the Ti and O atoms in the polarization direction was estimated to be 0.16{AA}$.

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パーセンタイル:23.32

分野:Physics, Multidisciplinary

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