Mapping the chemistry in nanostructured materials by energy-filtering transmission electron microscopy (EFTEM)

被引:5
作者
Hofer, F
Warbichler, P
Kronberger, H
Zweck, J
机构
[1] Graz Univ Technol, Forschungsinst Elektronenmikroskopie, A-8010 Graz, Austria
[2] Zentrum Elektronenmikroskopie Graz, A-8010 Graz, Austria
[3] Vienna Univ Technol, Inst Tech Elektrochem & Festkorperchem, A-1060 Vienna, Austria
[4] Univ Regensburg, Inst Expt, D-93040 Regensburg, Germany
基金
奥地利科学基金会;
关键词
energy-filtering transmission electron microscopy; electron energy-loss spectrometry; Fe-Tb multilayer; La-based cermet;
D O I
10.1016/S1386-1425(01)00488-7
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
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. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:2061 / 2069
页数:9
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