Bragg coherent diffraction imaging allowing simultaneous retrieval of three-dimensional shape and strain distribution for 40–500 nm particles. (3rd August 2021)

• Record Type: Journal Article
• Authors: Oshime, Norihiro; Ohwada, Kenji; Sugawara, Kento; Abe, Tomohiro; Yamauchi, Reiji; Ueno, Tetsuro; Machida, Akihiko; Watanuki, Tetsu; Ueno, Shintaro; Fujii, Ichiro; Wada, Satoshi; Sato, Ryota; Teranishi, Toshiharu; Yamauchi, Miho; Ishii, Kenji; Toyokawa, Hidenori; Momma, Koichi; Kuroiwa, Yoshihiro
• Is Part Of: Japanese journal of applied physics. Volume 60:Number SF(2021)
• Publication Date: 2021-08-03
• Subjects: ferroelectrics -- coherent X-ray diffraction -- 3D imaging; Physics -- Periodicals; 621.05
• DOI: 10.35848/1347-4065/ac148b
• Languages: English
• ISSNs: 0021-4922

Abstract

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.