X-Git-Url: https://hackdaworld.org/gitweb/?a=blobdiff_plain;f=posic%2Fthesis%2Fsummary_outlook.tex;h=88d022b46f37d56c97bea94cb2b38c778521a03f;hb=778c927e5b4cf8c1ff38783733ed2dd7c23e6e90;hp=84d10f5434bcb1f5e89aa180223debf9e35e121e;hpb=4467ed9809f91a6b90790582f53c38466850be3b;p=lectures%2Flatex.git diff --git a/posic/thesis/summary_outlook.tex b/posic/thesis/summary_outlook.tex index 84d10f5..88d022b 100644 --- a/posic/thesis/summary_outlook.tex +++ b/posic/thesis/summary_outlook.tex @@ -1,8 +1,6 @@ \chapter{Summary and conclusions} \label{chapter:summary} -{\setlength{\parindent}{0pt} -%\paragraph{To summarize,} {\bf To summarize}, in a short review of the C/Si compound and the fabrication of the technologically promising semiconductor SiC by IBS, two controversial assumptions of the precipitation mechanism of 3C-SiC in c-Si are elaborated. } @@ -32,7 +30,7 @@ The actual structure is equal to the tetrahedral configuration, which is slightl Variations exist with displacements along two or a single \hkl<1 0 0> direction indicating a potential artifact. However, finite temperature simulations are not affected by this artifact due to a low activation energy necessary for a transition into the energetically more favorable tetrahedral configuration. Next to the known problem of the underestimated formation energy of the tetrahedral configuration \cite{tersoff90}, the energetic sequence of the defect structures is well reproduced by the EA calculations. -Migration barriers of \si{} investigated by quantum-mechanical calculations are found to be of the same order of magnitude than values derived in other ab initio studies \cite{bloechl93,sahli05}. +Migration barriers of \si{} investigated by quantum-mechanical calculations are found to be of the same order of magnitude than values derived in other {\em ab initio} studies \cite{bloechl93,sahli05}. Defects of C in Si are well described by both methods. The \ci{} \hkl<1 0 0> DB is found to constitute the most favorable interstitial configuration in agreement with several theoretical \cite{burnard93,leary97,dal_pino93,capaz94,jones04} and experimental \cite{watkins76,song90} investigations. @@ -128,10 +126,7 @@ Entropic contributions are assumed to be responsible for these structures at ele Indeed, utilizing increased temperatures is assumed to constitute a necessary condition to simulate IBS of 3C-SiC in c-Si. \\ \\ -% todo - sync with respective conclusion chapter -% % conclusions 2nd part -%\paragraph{Conclusions} {\bf Conclusions} concerning the SiC conversion mechanism are derived from results of both, first-principles and classical potential calculations. Although classical potential MD calculations fail to directly simulate the precipitation of SiC, obtained results, on the one hand, reinforce previous findings of the first-principles investigations and, on the other hand, allow further conclusions on the SiC precipitation in Si.