\begin{figure}[!h]
\begin{center}
- \includegraphics[width=8cm]{../plot/foo150.ps}
- \caption{Diffusion constants}
+ \includegraphics[width=12cm]{../plot/diff_dep.ps}
+ \caption{Diffusion coefficients of a single carbon atom for different amount of Si selft interstitials}
\end{center}
\end{figure}
-The influence of interstitials on the diffusion of a single carbon atom is displayed in Fig. 3.
-\ldots
-
+The influence of Si self interstitials on the diffusion of a single carbon atom is displayed in Fig. 3.
+Diffusion coefficients for different amount of Si self interstitials are shown.
+A slight increase is first observed in the case of 30 interstitial atoms.
+Further increasing the amount of interstitials leads to a tremendous decay of the diffusion coeeficient.
+Generally there is no long range diffusion of the carbon atom for a temperature of $450\, ^{\circ} \textrm{C}$.
+The maximal displacement of the carbon atom relativ to its insertion position is between 0.5 and 0.7 \AA.
\begin{figure}[!h]
\begin{center}
- \begin{minipage}{8.25cm}
- \includegraphics[width=8cm]{../plot/foo150.ps}
- \end{minipage}
- \begin{minipage}{8.25cm}
- \includegraphics[width=8cm]{../plot/foo_end.ps}
- \end{minipage}
- \caption{Pair correlation functions for C-C and Si-C bonds.
- Carbon atoms are introduced into the whole simulation volume (red), the region which corresponds to the size of a minimal SiC precipitation (green) and the volume which contains the necessary amount of silicon for a minimal precipitation (blue).}
+ \includegraphics[width=12cm]{../plot/foo_end.ps}
+ \includegraphics[width=12cm]{../plot/foo150.ps}
+ \caption{Pair correlation functions for Si-C and C-C bonds.
+ Carbon atoms are introduced into the whole simulation volume ({\color{red}-}), the region which corresponds to the size of a minimal SiC precipitate ({\color{green}-}) and the volume which contains the necessary amount of silicon for such a minimal precipitate ({\color{blue}-}).}
\end{center}
\end{figure}
Fig. 4 shows results of the simulation runs targeting the observation of precipitation events.