First application of Cc-corrected imaging for high-resolution and energy-filtered TEM

Abstract

Contrast-transfer calculations indicate that C_c correction should be highly beneficial for high-resolution and energy-filtered transmission electron microscopy. A prototype of an electron optical system capable of correcting spherical and chromatic aberration has been used to verify these calculations. A strong improvement in resolution at an acceleration voltage of 80 kV has been measured. Our first C_c-corrected energy-filtered experiments examining a (LaAlO₃)_0.3(Sr₂AlTaO₆)_0.7/LaCoO₃ interface demonstrated a significant gain for the spatial resolution in elemental maps of La.