3D atomic imaging by internal-detector electron holography

Akio Uesaka, Koichi Hayashi, Tomohiro Matsushita, Shigetoshi Arai

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

A method of internal-detector electron holography is the time-reversed version of photoelectron holography. Using an energy-dispersive x-ray detector, an electron gun, and a computer-controllable sample stage, we measured a multiple-energy hologram of the atomic arrangement around the Ti atom in SrTiO3 by recording the characteristic Ti Kα x-ray spectra for different electron beam angles and wavelengths. A real-space image was obtained by using a fitting-based reconstruction algorithm. 3D atomic images of the elements Sr, Ti, and O in SrTiO3 were clearly visualized. The present work reveals that internal-detector electron holography has great potential for reproducing 3D atomic arrangements, even for light elements.

Original languageEnglish
Article number045502
JournalPhysical Review Letters
Volume107
Issue number4
DOIs
Publication statusPublished - 2011 Jul 19

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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