title: Plasmon energy mapping in energy-filtering transmission electron microscopy.
abstract: In this paper, we demonstrate the two-dimensional mapping of plasmon energies by energy-filtering transmission electron microscopy. The maps are obtained from a series of energy-filtered images in the plasmon energy region. Examples are shown for a nano-crystalline Si-B-C-N ceramic. This material contains SiC and Si(3)N(4) grains as well as intergranular regions composed of hexagonal BN (h-BN) and turbostratic carbon (t-C). The different phases can be clearly identified by their specific plasmon energies. An energy resolution of < or =0.1eV is achieved. In addition, the plasmon map of an amorphous carbon film is used to visualize the non-isochromaticity of the Corrected Omega filter (90 degrees filter) of the SESAM2. A procedure is proposed for the correction of the non-isochromaticity.
authors.affiliation: Max-Planck-Institut für Metallforschung, Heisenbergstrasse 3, D-70569, Stuttgart, Germany. sigle@mf.mpg.de
authors.forename: W
authors.initials: W
authors.lastname: Sigle
authors.forename: S
authors.initials: S
authors.lastname: Krämer
authors.forename: V
authors.initials: V
authors.lastname: Varshney
authors.forename: A
authors.initials: A
authors.lastname: Zern
authors.forename: U
authors.initials: U
authors.lastname: Eigenthaler
authors.forename: M
authors.initials: M
authors.lastname: Rühle