interstitial experiments

[lectures/latex.git] / posic / talks / dpg_2008.tex

diff --git a/posic/talks/dpg_2008.tex b/posic/talks/dpg_2008.tex
index 42a2415..1f6bce4 100644 (file)
--- a/posic/talks/dpg_2008.tex
+++ b/posic/talks/dpg_2008.tex
@@ -48,6 +48,9 @@
 \newcommand{\foo}{\mathcal{U}}
 \newcommand{\vir}{\mathcal{W}}
 
+% itemize level ii
+\renewcommand\labelitemii{{\color{gray}$\bullet$}}
+
 % topic
 
 \begin{slide}
@@ -232,22 +235,31 @@
   Simulation details
  }
 
+ \vspace{16pt}
+
  Interstitial experiments:
+
+ \vspace{12pt}
+
  \begin{itemize}
   \item Initial configuration: $9\times9\times9$ unit cells Si
   \item Periodic boundary conditions
   \item $T=0 \, K$
   \item Insertion of Si / C atom at
         \begin{itemize}
-         \item $(0,0,0)$ $\rightarrow$ tetrahedral
-         \item $(-1/8,-1/8,1/8)$ $\rightarrow$ hexagonal
+         \item $(0,0,0)$ $\rightarrow$ {\color{red}tetrahedral}
+         \item $(-1/8,-1/8,1/8)$ $\rightarrow$ {\color{green}hexagonal}
          \item $(-1/8,-1/8,-1/4)$, $(-1/4,-1/4,-1/4)$
-              $\rightarrow$ 110 dumbbell
+              $\rightarrow$ {\color{yellow}110 dumbbell}
         \item random positions (critical distance check)
        \end{itemize}
   \item Relaxation time: $2\, ps$
  \end{itemize}
 
+ \begin{picture}(0,0)(-210,-65)
+  \includegraphics[width=6cm]{unit_cell.eps}
+ \end{picture}
+
 \end{slide}
 
 \begin{slide}
@@ -294,6 +306,48 @@
   Results
  }
 
+ Si self-interstitial experiments:
+
+ \vspace{8pt}
+
+ \small
+
+ \begin{minipage}[t]{4.0cm}
+ \underline{Tetrahedral}
+ \begin{itemize}
+  \item $E_F=3.41\, eV$
+  \item $r_{cutoff}^{Si-Si}=2.96>\frac{5.43}{2}$
+ \end{itemize}
+ \end{minipage}
+ \hspace{0.3cm}
+ \begin{minipage}[t]{4.0cm}
+ \underline{110 dumbbell}
+ \begin{itemize}
+  \item $E_F=4.39\, eV$
+  \item Small bond strength
+ \end{itemize}
+ \end{minipage}
+ \hspace{0.3cm}
+ \begin{minipage}[t]{4.0cm}
+ \underline{Hexagonal}
+ \begin{itemize}
+  \item $E_F=4.48\, eV$
+  \item unstable for $T\ne 0\,K$
+ \end{itemize}
+ \end{minipage}
+
+ \vspace{8pt}
+
+ \begin{minipage}{4.3cm}
+ \includegraphics[width=3.8cm]{si_self_int_tetra_0.eps}
+ \end{minipage}
+ \begin{minipage}{4.3cm}
+ \includegraphics[width=3.8cm]{si_self_int_dumbbell_0.eps}
+ \end{minipage}
+ \begin{minipage}{4.3cm}
+ \includegraphics[width=3.8cm]{si_self_int_hexa_0.eps}
+ \end{minipage}
+
 \end{slide}
 
 \begin{slide}
@@ -310,6 +364,45 @@
   Results
  }
 
+ Carbon interstitial experiments:
+
+ \vspace{8pt}
+
+ \small
+
+ \begin{minipage}[t]{4.0cm}
+ \underline{Tetrahedral}
+ \begin{itemize}
+  \item $E_F=2.67\, eV$
+ \end{itemize}
+ \end{minipage}
+ \hspace{0.3cm}
+ \begin{minipage}[t]{4.0cm}
+ \underline{110 dumbbell}
+ \begin{itemize}
+  \item $E_F=1.76\, eV$
+ \end{itemize}
+ \end{minipage}
+ \hspace{0.3cm}
+ \begin{minipage}[t]{4.0cm}
+ \underline{Hexagonal}
+ \begin{itemize}
+  \item unstable!
+ \end{itemize}
+ \end{minipage}
+
+ \vspace{8pt}
+
+ \begin{minipage}{4.3cm}
+ \includegraphics[width=3.8cm]{c_in_si_int_tetra_0.eps}
+ \end{minipage}
+ \begin{minipage}{4.3cm}
+ \includegraphics[width=3.8cm]{c_in_si_int_dumbbell_0.eps}
+ \end{minipage}
+ \begin{minipage}{4.3cm}
+ %\includegraphics[width=3.8cm]{si_self_int_hexa_0.eps}
+ \end{minipage}
+
 \end{slide}
 
 \begin{slide}
@@ -318,6 +411,8 @@
   Results
  }
 
+ SiC-precipitation experiments:
+
 \end{slide}
 
 \begin{slide}
@@ -328,6 +423,5 @@
 
 \end{slide}
 
-
 \end{document}