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On Dark-Field High-Resolution Images Of Two-Dimensional Antiphase Structures

Published online by Cambridge University Press:  21 February 2011

O. Terasaki ,
G.J. Wood  and
D. Watanabe
O. Terasaki
Affiliation:
Dept. of Physical Chemistry, University of Cambridge, England.
G.J. Wood
Affiliation:
HREM, University of Cambridge, Free School Lane, England.
D. Watanabe
Affiliation:
Dept. of Physical Chemistry, University of Cambridge, England. Dept. of Physics, Tohoku University, Sendai, Japan.
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Abstract

Dark-field images of two-dimensional antiphase domain structures with stepped boundaries have been simulated for imaging conditions corresponding to some current high resolution electron microscopes. The simulations reveal that the positions of the dots in the dark-field images do not give a true representation of atomic structure; thus, in contrast to the brightfield superstructure images, it is very misleading to say that bright dots in the dark-field image correspond exactly to the positions of the minority atoms.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 21: Symposium GREECE – Phase Transformations in Solids , 1983 , 253
Copyright
Copyright © Materials Research Society 1984

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References

REFERENCES

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