Mapping the chemistry in nanostructured materials by energy-filtering transmission electron microscopy (EFTEM).
Energy-filtered transmission electron microscopy (EFTEM) can be used to acquire elemental distribution maps at high lateral resolution within short acquisition times, which makes it quite efficient for a detailed characterization of nanostructures, as illustrated with examples concerning a nanostructured substituted La-based cermet compound and a nanoscale multilayer. In the first example, we show how phases in a rapidly cooled substituted LaNi5 can be visualized by recording jump ratio images. Secondly, EFTEM was capable of imaging individual nanoscale layers in a magnetic multilayer consisting of 2 nm terbium and 3 nm iron.
Hofer
F
F
Forschungsinstitut für Elektronenmikroskopie, Technische Universität Graz und Zentrum für Elektronenmikroskopie Graz, Austria. ferdinand.hofer@felmi-zfe.at
Warbichler
P
P
Kronberger
H
H
Zweck
J
J
D055592:Biophysical Phenomena; D001703:Biophysics; D007501:Iron / Q000737:chemistry; D007811:Lanthanum / Q000737:chemistry; D008854:Microscopy, Electron / Q000295:instrumentation* / Q000379:methods*; D013725:Terbium / Q000737:chemistry; D013997:Time Factors
D013725:Terbium; D007811:Lanthanum; D007501:Iron