Application details:
\begin{itemize}
\item Integrator: Velocity Verlet, timestep: $1\, fs$
- \item Ensemble control: NVT, Berendsen thermostat, $\tau=100.0$
+ \item Ensemble: NVT, Berendsen thermostat, $\tau=100.0$
\item Potential: Tersoff-like bond order potential\\
\[
E = \frac{1}{2} \sum_{i \neq j} \pot_{ij}, \quad
Simulation details
}
- \vspace{20pt}
+ \vspace{8pt}
Interstitial experiments:
- \vspace{12pt}
+ \vspace{8pt}
- \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 $(0,0,0)$ $\rightarrow$ {\color{red}tetrahedral}
- \item $(-1/8,-1/8,1/8)$ $\rightarrow$ {\color{green}hexagonal}
- \item $(-1/8,-1/8,-1/4)$, $(-1/4,-1/4,-1/4)$\\
- $\rightarrow$ {\color{magenta}110 dumbbell}
- \item random positions (critical distance check)
- \end{itemize}
- \item Relaxation time: $2\, ps$
- \item Optional heating-up
- \end{itemize}
+ \begin{pspicture}(0,0)(7,8)
+ \rput(3.5,7){\rnode{init}{\psframebox[fillstyle=solid,fillcolor=green]{
+ \parbox{7cm}{
+ \begin{itemize}
+ \item Initial configuration: $9\times9\times9$ unit cells Si
+ \item Periodic boundary conditions
+ \item $T=0 \, K$
+ \end{itemize}
+ }}}}
+\rput(3.5,3.5){\rnode{insert}{\psframebox{
+ \parbox{7cm}{
+ Insertion of C / Si atom:
+ \begin{itemize}
+ \item $(0,0,0)$ $\rightarrow$ {\color{red}tetrahedral}
+ \item $(-1/8,-1/8,1/8)$ $\rightarrow$ {\color{green}hexagonal}
+ \item $(-1/8,-1/8,-1/4)$, $(-1/4,-1/4,-1/4)$\\
+ $\rightarrow$ {\color{magenta}110 dumbbell}
+ \item random positions (critical distance check)
+ \end{itemize}
+ }}}}
+ \rput(3.5,1){\rnode{cool}{\psframebox[fillstyle=solid,fillcolor=cyan]{
+ \parbox{3.5cm}{
+ Relaxation time: $2\, ps$
+ }}}}
+ \ncline[]{->}{init}{insert}
+ \ncline[]{->}{insert}{cool}
+ \end{pspicture}
\begin{picture}(0,0)(-210,-45)
\includegraphics[width=6cm]{unit_cell.eps}