Local clusters in a distorted rocksalt gete crystal found by X-ray fluorescence holography

Shinya Hosokawa, Naohisa Happo, Shinya Senba, Toru Ozaki, Tomohiro Matsushita, Akihide Koura, Fuyuki Shimojo, Kouichi Hayashi

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

A Ge Kα X-ray fluorescence holography (XFH) measurement was performed on a single-crystal GeTe film with a deformed rocksalt (rhombohedral) lattice, for which careful analyses and observations of the reconstructed atomic images were needed. The three-dimensional atomic images obtained around the central Ge atom were compared with the theoretical images obtained from a simulated hologram in the full sphere range and in the limited θ range (0 < θ < 74°),as in the experiment. It was found that reliable atomic images were realized only when neighboring atoms are located on the surface side of the central Ge atom. GeTe3 clusters were found by XFH, which cannot be easily detected by diffraction, and confirmed by ab initio molecular dynamics simulation.

Original languageEnglish
Article number124602
Journaljournal of the physical society of japan
Volume83
Issue number12
DOIs
Publication statusPublished - 2014 Dec 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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