From: hackbard Date: Wed, 25 May 2011 22:24:12 +0000 (+0200) Subject: other mechanisms X-Git-Url: https://hackdaworld.org/gitweb/?a=commitdiff_plain;h=6207cee9e7f4c6025d08bb5491985652071324ed;p=lectures%2Flatex.git other mechanisms --- diff --git a/posic/talks/seminar_2011.tex b/posic/talks/seminar_2011.tex index ca6b07f..1acb375 100644 --- a/posic/talks/seminar_2011.tex +++ b/posic/talks/seminar_2011.tex @@ -483,6 +483,110 @@ r = 2 - 4 nm \end{slide} +\begin{slide} + + {\large\bf + Supposed precipitation mechanism of SiC in Si + } + + \scriptsize + + \vspace{0.1cm} + + \begin{minipage}{3.8cm} + Si \& SiC lattice structure\\[0.2cm] + \includegraphics[width=3.5cm]{sic_unit_cell.eps}\\[-0.3cm] + \hrule + \end{minipage} + \hspace{0.6cm} + \begin{minipage}{3.8cm} + \begin{center} + \includegraphics[width=3.3cm]{tem_c-si-db.eps} + \end{center} + \end{minipage} + \hspace{0.6cm} + \begin{minipage}{3.8cm} + \begin{center} + \includegraphics[width=3.3cm]{tem_3c-sic.eps} + \end{center} + \end{minipage} + + \begin{minipage}{4cm} + \begin{center} + C-Si dimers (dumbbells)\\[-0.1cm] + on Si interstitial sites + \end{center} + \end{minipage} + \hspace{0.2cm} + \begin{minipage}{4.2cm} + \begin{center} + Agglomeration of C-Si dumbbells\\[-0.1cm] + $\Rightarrow$ dark contrasts + \end{center} + \end{minipage} + \hspace{0.2cm} + \begin{minipage}{4cm} + \begin{center} + Precipitation of 3C-SiC in Si\\[-0.1cm] + $\Rightarrow$ Moir\'e fringes\\[-0.1cm] + \& release of Si self-interstitials + \end{center} + \end{minipage} + + \begin{minipage}{3.8cm} + \begin{center} + \includegraphics[width=3.3cm]{sic_prec_seq_01.eps} + \end{center} + \end{minipage} + \hspace{0.6cm} + \begin{minipage}{3.8cm} + \begin{center} + \includegraphics[width=3.3cm]{sic_prec_seq_02.eps} + \end{center} + \end{minipage} + \hspace{0.6cm} + \begin{minipage}{3.8cm} + \begin{center} + \includegraphics[width=3.3cm]{sic_prec_seq_03.eps} + \end{center} + \end{minipage} + +\begin{pspicture}(0,0)(0,0) +\psline[linewidth=4pt]{->}(8.5,2)(9.0,2) +\psellipse[linecolor=blue](11.5,5.8)(0.3,0.5) +\rput{-20}{\psellipse[linecolor=blue](3.3,8.1)(0.3,0.5)} +\psline[linewidth=4pt]{->}(4.0,2)(4.5,2) +\rput(12.7,0.3){\rnode{init}{\psframebox[fillstyle=solid,fillcolor=hb]{ + $4a_{\text{Si}}=5a_{\text{SiC}}$ + }}} +\rput(12.2,8){\rnode{init}{\psframebox[fillstyle=solid,fillcolor=hb]{ +\hkl(h k l) planes match + }}} +\rput(9.7,6.2){\rnode{init}{\psframebox[fillstyle=solid,fillcolor=hb]{ +r = 2 - 4 nm + }}} +\rput(4.7,6.2){\rnode{init}{\psframebox[fillstyle=solid,fillcolor=red]{ +\begin{minipage}{6cm} +\vspace*{0.1cm} +IBS studies revealing controversial views\\ +\begin{itemize} +\item Nejim et al. + \begin{itemize} + \item Topotactic transformation based on \cs + \item \si as supply reacting with further C in cleared volume + \end{itemize} +\item Serre, Reeson, Lindner ... + \begin{itemize} + \item RT implants: highly mobile C + \item elevated T implants: no/low C redistribution/migration + \end{itemize} +\end{itemize} +\end{minipage} + }}} +\end{pspicture} + +\end{slide} + \begin{slide} {\large\bf