Applications of X-ray fluorescence holography to determine local lattice distortions

作者：Hayashi Kouichi^*; Happo Naohisa; Hosokawa Shinya

来源：Journal of Electron Spectroscopy and Related Phenomena, 2014, 195: 337-346.

DOI：10.1016/j.elspec.2014.07.008

• X-ray fluorescence holography
• X-ray scattering
• Single crystal
• Impurity
• Medium-range structure

X-ray fluorescence holography (XFH) is a method for investigating atomic order up to the medium ranges, and can provide 3D atomic images around specific elements within a radius of nm order. In addition to these characteristics, XFH is sensitive to positional fluctuations of atoms, and therefore it is useful for characterizing the local lattice distortions around specific elements. We have applied XFH to dopants and mixed crystals. We found interesting features in local lattice distortions, such as the displacements of first-neighbor atoms around dopants, far-sighted views of the atomistic fluctuations in mixed crystals, and the coexistence of distorted/undistorted sites in the same material.

• 出版日期2014-8