Bragg coherent diffraction imaging allowing simultaneous retrieval of three-dimensional shape and strain distribution for 40-500 nm particles

Norihiro Oshime, Kenji Ohwada, Kento Sugawara, Tomohiro Abe, Reiji Yamauchi, Tetsuro Ueno, Akihiko MacHida, Tetsu Watanuki, Shintaro Ueno, Ichiro Fujii, Satoshi Wada, Ryota Sato, Toshiharu Teranishi, Miho Yamauchi, Kenji Ishii, Hidenori Toyokawa, Koichi Momma, Yoshihiro Kuroiwa

Research output: Contribution to journalArticlepeer-review

Abstract

We report the improvement of an apparatus for Bragg coherent X-ray diffraction imaging (Bragg-CDI) at BL22XU in SPring-8 to expand the applicable particle size and the application of the Bragg-CDI technique for Pd and ferroelectric barium titanate (BaTiO3) fine crystals with particle sizes of 40-500 nm. Preparing a vacuum environment around the sample enabled us to obtain the high-contrast diffraction pattern of a 40 nm particle. The reconstructed three-dimensional image showed the outer shape, size, and internal phase (strain) for a single particle. A single 500 nm BaTiO3 particle showed a straight and sharp antiphase-boundary shape, whereas smaller BaTiO3 particles showed different phase boundary shapes. The present Bragg-CDI apparatus, thus, allows the observation of the outer shape, size, and inner phase distribution for a single particle with a size of 40-500 nm.

Original languageEnglish
Article numberSFFA07
JournalJapanese journal of applied physics
Volume60
Issue numberSF
DOIs
Publication statusPublished - Nov 2021

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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