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Structural Phase Transition in Buried CoSi2 Layers

Published online by Cambridge University Press:  25 February 2011

W. G. Spanninga
Affiliation:
Nuclear Solid State Physics and Materials Science Centre, Nijenborgh 4, NL-9747 AG Groningen, The, Netherlands.
A. R. Sandy
Affiliation:
Physics Department, Risø National Laboratory, P.O. Box 49, DK-4000 Roskilde, Denmark.
L. Niesen
Affiliation:
Nuclear Solid State Physics and Materials Science Centre, Nijenborgh 4, NL-9747 AG Groningen, The, Netherlands.
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Abstract

Heteroepitaxial Si/CoSi2/Si<111> structures were made by high dose implantation of Co in a Si wafer. These single crystaline layers were investigated with 57Co source Mössbauer spectroscopy, 4He ion channeling and X-ray scattering. All results show there is a structural phase transition in the buried CoSi2 layer at a temperature around 200 K.

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