+Motivation:
+\begin{itemize}
+ \item The properties of solids can be understood in terms of an infinite periodic lattice
+ \item In reality, every solid must have a finite spatial extent. The
+ \item Thin films can have extremely complicated and interesting properties.
+ \item The characterisation of thin films is important research in electronics as the surface to volume ratio increases.
+ \item Most recent research has been into completely new technologies which exploit the p
+ \item Somehow link to metallic-black films (?)
+\end{itemize}
+