The properties of as-prepared and rapidly thermally oxidized Si1-x-yGexCy.
alloy films have been examined using infrared, X-ray diffraction, and Raman
techniques. The structural properties of the oxidized Si1-x-yGexCy film de
pend on the type of strain of the as-prepared film. For compressive or full
y compensated films, the oxidation process drastically reduces the carbon c
ontent such that the oxidized film compositions resemble that of Si1-xGex f
ilms. For tensile films, two broad layers co-exist in the oxidized films, o
ne with a carbon content higher and the other lower than that required for
full strain compensation. (C) 2000 Elsevier Science S.A. All rights reserve
d.