small foo

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

diff --git a/posic/talks/dpg_2008.tex b/posic/talks/dpg_2008.tex
index 1f6bce4..5349eac 100644 (file)
--- a/posic/talks/dpg_2008.tex
+++ b/posic/talks/dpg_2008.tex
@@ -138,7 +138,7 @@
   \item Results gained by simulation
         \begin{itemize}
          \item Interstitials in silicon
-         \item $SiC$-precipitation experiments
+         \item SiC-precipitation experiments
        \end{itemize}
   \item Conclusion / Outlook
  \end{itemize}
@@ -186,9 +186,11 @@
  \end{minipage}
 
  \begin{center}
- \[5a_{SiC}=4a_{Si} \quad \Rightarrow \quad
+ \[
+   \textrm{Silicon density: } \quad
+   5a_{SiC}=4a_{Si} \quad \Rightarrow \quad
    \frac{n_{SiC}}{n_{Si}}=\frac{\frac{4}{a_{SiC}^3}}{\frac{8}{a_{Si}^3}}=
-                          \frac{5^3}{2\cdot4^3}=97,66\%
+                          \frac{5^3}{2\cdot4^3}={\color{cyan}97,66}\,\%
  \]
  \end{center}
 
@@ -235,7 +237,7 @@
   Simulation details
  }
 
- \vspace{16pt}
+ \vspace{20pt}
 
  Interstitial experiments:
 
@@ -254,9 +256,10 @@
         \item random positions (critical distance check)
        \end{itemize}
   \item Relaxation time: $2\, ps$
+  \item Optional heating-up 
  \end{itemize}
 
- \begin{picture}(0,0)(-210,-65)
+ \begin{picture}(0,0)(-210,-85)
   \includegraphics[width=6cm]{unit_cell.eps}
  \end{picture}
 
@@ -308,6 +311,14 @@
 
  Si self-interstitial experiments:
 
+ {\footnotesize
+ {\bf Note:}
+ \begin{itemize}
+  \item $r_{cutoff}^{Si-Si}=2.96>\frac{5.43}{2}$
+  \item Bond length near $r_{cutoff} \Rightarrow$ small bond strength
+ \end{itemize}
+ }
+
  \vspace{8pt}
 
  \small
@@ -316,7 +327,8 @@
  \underline{Tetrahedral}
  \begin{itemize}
   \item $E_F=3.41\, eV$
-  \item $r_{cutoff}^{Si-Si}=2.96>\frac{5.43}{2}$
+  \item essentialy tetrahedral\\
+        bonds
  \end{itemize}
  \end{minipage}
  \hspace{0.3cm}
@@ -324,15 +336,15 @@
  \underline{110 dumbbell}
  \begin{itemize}
   \item $E_F=4.39\, eV$
-  \item Small bond strength
+  \item essentially 4 bonds
  \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 $T\ne 0\,K$
+  \item $E_F^{\star}=4.48\, eV$
+  \item unstable!
  \end{itemize}
  \end{minipage}
 
@@ -356,6 +368,14 @@
   Results
  }
 
+ \vspace{8pt}
+
+ Si self-interstitial \underline{random insertion} experiments:
+
+ \vspace{8pt}
+
+ foo
+
 \end{slide}
 
 \begin{slide}
@@ -374,6 +394,7 @@
  \underline{Tetrahedral}
  \begin{itemize}
   \item $E_F=2.67\, eV$
+  \item tetrahedral bond
  \end{itemize}
  \end{minipage}
  \hspace{0.3cm}
@@ -381,12 +402,14 @@
  \underline{110 dumbbell}
  \begin{itemize}
   \item $E_F=1.76\, eV$
+  \item C forms 3 bonds
  \end{itemize}
  \end{minipage}
  \hspace{0.3cm}
  \begin{minipage}[t]{4.0cm}
  \underline{Hexagonal}
  \begin{itemize}
+  \item $E_F\sim5.6\, eV$
   \item unstable!
  \end{itemize}
  \end{minipage}
@@ -400,11 +423,27 @@
  \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}
+ \includegraphics[width=3.8cm]{c_in_si_int_hexa_0.eps}
  \end{minipage}
 
 \end{slide}
 
+\begin{slide}
+
+ {\large\bf
+  Results
+ }
+
+ \vspace{8pt}
+
+ Carbon \underline{random insertion} experiments:
+
+ \vspace{8pt}
+
+ bar
+
+\end{slide}
+
 \begin{slide}
 
  {\large\bf