論文

査読有り
2017年5月

Electric field imaging of single atoms

NATURE COMMUNICATIONS
  • Naoya Shibata
  • ,
  • Takehito Seki
  • ,
  • Gabriel Sanchez-Santolino
  • ,
  • Scott D. Findlay
  • ,
  • Yuji Kohno
  • ,
  • Takao Matsumoto
  • ,
  • Ryo Ishikawa
  • ,
  • Yuichi Ikuhara

8
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1038/ncomms15631
出版者・発行元
NATURE PUBLISHING GROUP

In scanning transmission electron microscopy (STEM), single atoms can be imaged by detecting electrons scattered through high angles using post-specimen, annular-type detectors. Recently, it has been shown that the atomic-scale electric field of both the positive atomic nuclei and the surrounding negative electrons within crystalline materials can be probed by atomic-resolution differential phase contrast STEM. Here we demonstrate the real-space imaging of the (projected) atomic electric field distribution inside single Au atoms, using sub-angstrom spatial resolution STEM combined with a high-speed segmented detector. We directly visualize that the electric field distribution (blurred by the sub-angstrom size electron probe) drastically changes within the single Au atom in a shape that relates to the spatial variation of total charge density within the atom. Atomic-resolution electric field mapping with single-atom sensitivity enables us to examine their detailed internal and boundary structures.

Web of Science ® 被引用回数 : 58

リンク情報
DOI
https://doi.org/10.1038/ncomms15631
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000402304600002&DestApp=WOS_CPL

エクスポート
BibTeX RIS