Direct Imaging of Lithium Atoms in LiV₂O₄ by Spherical Aberration-Corrected Electron Microscopy

J Electron Microsc (Tokyo). 2010;59(6):457-61. doi: 10.1093/jmicro/dfq017. Epub 2010 Apr 20.

Abstract

We visualized lithium atom columns in LiV₂O₄ crystals by combining scanning transmission electron microscopy with annular bright field (ABF) imaging using a spherical aberration-corrected electron microscope (R005) viewed from the [110] direction. The incident electron beam was coherent with a convergent angle of 30 mrad (semi-angle), and the detector collected scattered electrons over 20-30 mrad (semi-angle). The ABF image showed dark dots corresponding to lithium, vanadium and oxygen columns.

Publication types

  • Research Support, Non-U.S. Gov't