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The Atomic Structure of the Si/CoSi2 Interface

Published online by Cambridge University Press:  21 February 2011

J.H. Mazur and
P. Grodzinski
J.H. Mazur
Affiliation:
Materials Science Department, University of Southern California, Los Angeles, CA 90089-0241.
P. Grodzinski
Affiliation:
Materials Science Department, University of Southern California, Los Angeles, CA 90089-0241.
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Abstract

High resolution electron microscopy lattice images were calculated for six atomic arrangements at the CoSi2 – (111)Si interface i.e. type A and type B, each type with Co atoms at the interface 8-, 7- and 5- fold coordinated. The results suggest that the new 8-fold coordinated variant should be easily distinguishable from the 5-fold coordinated variant, while 8- and 5-fold coordinated variants should be discernable from the 7-fold coordinated variant by the observation of a relative rigid body translation of Si and CoSi2 lattices. Unit cell size variation was found not to affect the contrast in the computed images of the interface provided that (i) the unit cells were chosen correctly i.e. to assure continuity of the periodic extension and (ii) the sampling point density was sufficient to prevent aliasing.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 139: Symposium R – High Resolution Microscopy of Materials , 1989, 387
Copyright
Copyright © Materials Research Society 1989

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References

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