Element-selective imaging of atomic columns in a crystal using STEM and EELS

Koji Kimoto, Toru Asaka, Takuro Nagai, Mitsuhiro Saito, Yoshio Matsui, Kazuo Ishizuka

Research output: Contribution to journalArticlepeer-review

292 Citations (Scopus)

Abstract

Microstructure characterization has become indispensable to the study of complex materials, such as strongly correlated oxides, and can obtain useful information about the origin of their physical properties. Although atomically resolved measurements have long been possible, an important goal in microstructure characterization is to achieve element-selective imaging at atomic resolution. A combination of scanning transmission electron microscopy (STEM) and electron energy-loss spectroscopy (EELS) is a promising technique for atomic-column analysis. However, two-dimensional analysis has not yet been performed owing to several difficulties, such as delocalization in inelastic scattering or instrumentation instabilities. Here we demonstrate atomic-column imaging of a crystal specimen using localized inelastic scattering and a stabilized scanning transmission electron microscope. The atomic columns of La, Mn and O in the layered manganite La1.2Sr1.8Mn 2O7 are visualized as two-dimensional images.

Original languageEnglish
Pages (from-to)702-704
Number of pages3
JournalNature
Volume450
Issue number7170
DOIs
Publication statusPublished - 2007 Nov 29
Externally publishedYes

ASJC Scopus subject areas

  • General

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