Quantitative electron diffraction: From atoms to bonds
作者:
P.A. Midgley,
M. Saunders,
期刊:
Contemporary Physics
(Taylor Available online 1996)
卷期:
Volume 37,
issue 6
页码: 441-456
ISSN:0010-7514
年代: 1996
DOI:10.1080/00107519608217535
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The development of new transmission electron microscopes with energy-filtering capability together with the increase in computer power over the past few years has enabled electron diffraction from inorganic crystals to become a quantitative and accurate science. With the introduction of new techniques and data analysis and with the advantage of a nanometre-sized probe, electron diffraction now rivals X-ray and neutron methods in many aspects of crystallography and solid-state physics. In this article, we have discussed two new developments which highlight the progress made in this area. First, a new method for ab-initio structure determination is explained and an example given to show its success. Second, energy-filtered diffraction patterns are used to refine the scattering potential of a crystal so that the bonding charge density can be reconstructed.
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