Defects in Ruddlesden-Popper phase CaO·[(CaMnO3)]4 epitaxial films grown on

SrTiO3 (001) by pulsed laser deposition were investigated using high angle annular

dark field imaging in an aberration-corrected scanning tunnelling electron

microscope. The stacking faults perpendicular and parallel to the substrate formed

during the growth were discussed in detail. The desired n = 4 Ruddlesden-Popper

phase was imaged and chemically analyzed at the atomic scale using electron

energy loss spectroscopy.

Aberration Corrected STEM of Defects in Epitaxial n = 4 Ruddlesden-Popper

Phase Can+1MnnO3n+1. P.Wang, A.L.Bleloch, L.Yan, H.J.Niu, P.R.Chalker,

M.J.Rosseinsky, P.J.Goodhew: Journal of Physics - Conference Series, 2008,

126[1], 012050