Automatic commit. Tue Aug 7 13:00:04 WST 2012

[matches/honours.git] / thesis / thesis.tex

diff --git a/thesis/thesis.tex b/thesis/thesis.tex
index 6e546c0..01c0a76 100644 (file)
--- a/thesis/thesis.tex
+++ b/thesis/thesis.tex
@@ -179,29 +179,10 @@ Summarise the literature, refer to past research etc
                        \end{itemize}
                \end{enumerate}
                \item Tamm and Shockley states arise from two extreme models (large change and small change respectively between bulk and surface). In reality, a combination of Tamm and Shockley states appear.
+               \item These states arise from termination of the lattice; but the surface cells are assumed undistorted
+               \item In reality surface cells are distorted by relaxation and reconstruction of the surface
        \end{itemize}
 
-
-       \item Properties of surface region
-       \begin{itemize}
-               \item Difference between potential of surface and bulk
-               \begin{itemize}
-                       \item Change between the two limits in the ``near-surface'' region
-               \end{itemize}
-               \item Theoretical models for the potential, 1D vs 3D
-               \begin{itemize}
-                       \item Simplest case is a step potential.
-                       \item Various improvements on this model, discussed in Komolov's book.
-                       \begin{itemize}
-                               \item Possibly adapt CQM project to model these potentials, if I get time
-                       \end{itemize}
-               \end{itemize}
-               \item Limitations of theoretical models
-               \begin{itemize}
-                       \item Real surface is not a step potential
-                       \item Adsorption of foreign particles onto the surface also plays a large role in determining the electron spectrum.
-               \end{itemize}
-       \end{itemize}
        \item Main reference: Komolov "Total Current Spectroscopy"
        \item "Solid State Physics" textbooks and "Electron Spectroscopy" textbooks 
 \end{itemize}
@@ -269,10 +250,10 @@ I really think I should actually find plasmonic effects before writing too much
 
 \subsection{Total Current Spectroscopy}
 \begin{itemize}
-       \item Overview of technique
-
-       Total Current Spectroscopy (TCS)
-
+       \item 
+       \item Total Current Spectroscopy methods measure the total current of secondary electrons as a function of primary electron energy.
+       \item These methods are distinguished from ``differential'' methods (such as Auger electron spectroscopy and energy loss spectroscopy) which measure the secondary electron spectrum at a fixed primary electron energy.
+       \item 
        \begin{itemize}
                \item Low energy beam of electrons incident on sample
                \item Measure slope of resulting I-V curve