Two-dimensional mapping of chemical information at atomic resolution

Phys Rev Lett. 2007 Aug 24;99(8):086102. doi: 10.1103/PhysRevLett.99.086102. Epub 2007 Aug 22.

Abstract

The simultaneous measurement of structural and chemical information at the atomic scale provides fundamental insights into the connection between form and function in materials science and nanotechnology. We demonstrate structural and chemical mapping in Bi(0.5) Sr(0.5) MnO3 using an aberration-corrected scanning transmission electron microscope. Two-dimensional mapping is made possible by an adapted method for fast acquisition of electron energy-loss spectra. The experimental data are supported by simulations, which help to explain the less intuitive features.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Microscopy, Electron, Scanning Transmission*