% layout check
%\layout
+\ifnum1=0
\begin{slide}
\center
{\Huge
E\\
}
\end{slide}
+\fi
% topic
\end{slide}
-%\fi
-
% fabrication
\begin{slide}
\end{slide}
-%\end{document}
-% temp
-%\ifnum1=0
-
% contents
\begin{slide}
\hrule
\begin{itemize}
\item Code: \textsc{vasp}
-\item Plane wave basis set
+\item Plane wave basis set | $E_{\text{cut}}=\unit[300]{eV}$
%$\displaystyle
%\Phi_i=\sum_{|G+k|<G_{\text{cut}}} c_{i,k+G} \exp{\left(i(k+G)r\right)}
%$\\
\end{slide}
-\end{document}
-\ifnum1=0
-
\begin{slide}
\footnotesize
\begin{itemize}
\item Stretched coherent SiC structures\\
$\Rightarrow$ Precipitation process involves {\color{blue}\cs}
-\item Explains annealing behavior of high/low T C implantations
- \begin{itemize}
- \item Low T: highly mobile {\color{red}\ci}
- \item High T: stable configurations of {\color{blue}\cs}
- \end{itemize}
\item Role of \si{}
\begin{itemize}
\item Vehicle to rearrange \cs --- [\cs{} \& \si{} $\leftrightarrow$ \ci]
\ldots Si/SiC interface\\
\ldots within stretched coherent SiC structure
\end{itemize}
+\item Explains annealing behavior of high/low T C implantations
+ \begin{itemize}
+ \item Low T: highly mobile {\color{red}\ci}
+ \item High T: stable configurations of {\color{blue}\cs}
+ \end{itemize}
\end{itemize}
\vspace{0.2cm}
\centering
\end{slide}
-% skip high T / C conc ... only here!
+% skip high c conc results
\ifnum1=0
\begin{slide}
\footnotesize
-\begin{minipage}{6.5cm}
+\begin{minipage}{6.0cm}
\includegraphics[width=6.4cm]{12_pc_thesis.ps}
\end{minipage}
-\begin{minipage}{6.5cm}
+\begin{minipage}{6.0cm}
\includegraphics[width=6.4cm]{12_pc_c_thesis.ps}
\end{minipage}
\end{slide}
-% skipped high T / C conc
+% skip high c conc
\fi
+% for preparation
+%\fi
+
\begin{slide}
+\headphd
{\large\bf
- Summary / Outlook
+ Summary / Conclusions
}
-\small
+\scriptsize
-\begin{pspicture}(0,0)(12,1.0)
-\psframebox[fillstyle=gradient,gradbegin=hred,gradend=white,gradlines=1000,gradmidpoint=1.0,linestyle=none]{
-\begin{minipage}{11cm}
-{\color{black}Diploma thesis}\\
- \underline{Monte Carlo} simulation modeling the selforganization process\\
- leading to periodic arrays of nanometric amorphous SiC precipitates
+\framebox{
+\begin{minipage}{12.3cm}
+ \underline{Defects}
+ \begin{itemize}
+ \item DFT / EA
+ \begin{itemize}
+ \item Point defects excellently / fairly well described
+ by DFT / EA
+ \item C$_{\text{sub}}$ drastically underestimated by EA
+ \item EA predicts correct ground state:
+ C$_{\text{sub}}$ \& \si{} $>$ \ci{}
+ \item Identified migration path explaining
+ diffusion and reorientation experiments by DFT
+ \item EA fails to describe \ci{} migration:
+ Wrong path \& overestimated barrier
+ \end{itemize}
+ \item Combinations of defects
+ \begin{itemize}
+ \item Agglomeration of point defects energetically favorable
+ by compensation of stress
+ \item Formation of C-C unlikely
+ \item C$_{\text{sub}}$ favored conditions (conceivable in IBS)
+ \item \ci{} \hkl<1 0 0> $\leftrightarrow$ \cs{} \& \si{} \hkl<1 1 0>\\
+ Low barrier (\unit[0.77]{eV}) \& low capture radius
+ \end{itemize}
+ \end{itemize}
\end{minipage}
}
-\end{pspicture}\\[0.4cm]
-\begin{pspicture}(0,0)(12,2)
-\psframebox[fillstyle=gradient,gradbegin=hblue,gradend=white,gradmidpoint=1.0,gradlines=1000,linestyle=none]{
-\begin{minipage}{11cm}
-{\color{black}Doctoral studies}\\
- Classical potential \underline{molecular dynamics} simulations \ldots\\
- \underline{Density functional theory} calculations \ldots\\[0.2cm]
- \ldots on defect formation and SiC precipitation in Si
+
+\framebox{
+\begin{minipage}[t]{12.3cm}
+ \underline{Pecipitation simulations}
+ \begin{itemize}
+ \item High C concentration $\rightarrow$ amorphous SiC like phase
+ \item Problem of potential enhanced slow phase space propagation
+ \item Low T $\rightarrow$ C-Si \hkl<1 0 0> dumbbell dominated structure
+ \item High T $\rightarrow$ C$_{\text{sub}}$ dominated structure
+ \item High T necessary to simulate IBS conditions (far from equilibrium)
+ \item Precipitation by successive agglomeration of \cs (epitaxy)
+ \item \si{}: vehicle to form \cs{} \& supply of Si \& stress compensation
+ (stretched SiC, interface)
+ \end{itemize}
\end{minipage}
}
-\end{pspicture}\\[0.5cm]
-\begin{pspicture}(0,0)(12,3)
-\psframebox[fillstyle=solid,fillcolor=white,linestyle=solid]{
-\begin{minipage}{11cm}
-\vspace{0.2cm}
-{\color{black}\bf How to proceed \ldots}\\[0.1cm]
-MC $\rightarrow$ empirical potential MD $\rightarrow$ Ground-state DFT \ldots
-\begin{itemize}
- \renewcommand\labelitemi{$\ldots$}
- \item beyond LDA/GGA methods \& ground-state DFT
-\end{itemize}
-Investigation of structure \& structural evolution \ldots
-\begin{itemize}
- \renewcommand\labelitemi{$\ldots$}
- \item electronic/optical properties
- \item electronic correlations
- \item non-equilibrium systems
-\end{itemize}
-\end{minipage}
+
+\begin{center}
+{\color{blue}
+\framebox{Precipitation by successive agglomeration of \cs{}}
}
-\end{pspicture}\\[0.5cm]
+\end{center}
\end{slide}
\item Ralf Utermann (EDV)
\end{itemize}
+ \underline{Berlin/Brandenburg}
+ \begin{itemize}
+ \item PD Volker Eyert (Ref)
+ \end{itemize}
+
\underline{Helsinki}
\begin{itemize}
\item Prof. K. Nordlund (MD)
\item Dr. E. Rauls (DFT + SiC)
\end{itemize}
- \underline{Stuttgart}
\begin{center}
\framebox{
-\bf Thank you for your attention / invitation!
+\bf Thank you for your attention!
}
\end{center}
\end{document}
-\fi
projects / lectures / latex.git / blobdiff