From: hackbard Date: Fri, 2 May 2008 09:45:14 +0000 (+0200) Subject: pre alpha X-Git-Url: https://hackdaworld.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5d521e0c8f7ae12b73557ac5439c24c5c51f6d00;p=lectures%2Flatex.git pre alpha --- diff --git a/posic/publications/emrs2008_full.tex b/posic/publications/emrs2008_full.tex index 965cd03..e0581e1 100644 --- a/posic/publications/emrs2008_full.tex +++ b/posic/publications/emrs2008_full.tex @@ -160,24 +160,23 @@ This type of configuration is frequently observed for the random insertion runs \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.