LaTeX Forum

\documentclass[11pt,a4paper,ngerman]{article}
\usepackage[T1]{fontenc}
\usepackage{selinput}
\SelectInputMappings{%
  adieresis={ä},
  germandbls={ß},
  Euro={€}
}
\usepackage{babel}
\usepackage[includeheadfoot,margin=2cm]{geometry}
\usepackage[font=small,labelfont=bf,tableposition=top]{caption}
\usepackage[font=footnotesize]{subfig}
\usepackage{tikz}
\usetikzlibrary{decorations.pathreplacing}

\begin{document}
  \begin{figure}[!ht]
    \centering
    \subfloat[Direkter Übergang\label{subfig-1:uebergang}]{
      \begin{tikzpicture}[>=stealth,thick,font=\small]
%      \draw[help lines] (-3,-0) grid (3,4);
        \draw[->] (-3,0)--(3,0) node[above left] {$k$};
        \draw[->] (0,0)--(0,4) node[below right] {$E$};
        \draw (-2,0.5) parabola[bend pos=0.5] bend +(0,1) +(4,0);
        \draw (-2.5,3.5) parabola[bend pos=0.5] bend +(0,-1) +(5,0);
        \draw (-3,0) node[anchor=south west] {Valenzband};
        \draw (3,4) node[anchor=north east] {Leitungsband};
        \draw[thin] (0,1.5)--(1,1.5);
        \draw[thin] (0,2.5)--(1,2.5);
        \draw[<->,thin] (0.8,1.5)--(0.8,2.5) node[midway,right] {$E_\text{g}$};
      \end{tikzpicture}
    }
    \hspace{5mm}
    \subfloat[Indirekter Übergang\label{subfig-2:uebergang}]{%
      \begin{tikzpicture}[>=stealth,thick,font=\small]
%        \draw[help lines] (-2,0) grid (6,4);
        \draw[->] (-2,0)--(6,0) node[anchor=south east] {$k$};
        \draw[->] (0,0)--(0,4) node[anchor=north west] {$E$};
        \draw (-2,0.5) parabola[bend pos=0.5] bend +(0,1) +(4,0);
        \draw (0.5,3.5) parabola[bend pos=0.5] bend +(0,-1) +(5,0);
        \draw[thin,dotted] (0,1.5)--(3,1.5)--(3,2.5);
        \draw[thin,decorate,decoration={brace,amplitude=5pt}] (0,1.5)--(3,1.5) node[midway,above=2pt] {$\vec{q}$};
        \draw (-2,0) node[anchor=south west] {Valenzband};
        \draw (6,4) node[anchor=north east] {Leitungsband};
        \draw[thin] (3,1.5)--(4,1.5) (3,2.5)--(4,2.5);
        \draw[<->,thin] (3.8,1.5)--(3.8,2.5) node[midway,right] {\small $E_\text{g}$};
      \end{tikzpicture}
    }
    \caption{Übergänge zwischen Valenzband und Leitungsband}\label{fig:uebergang}
  \end{figure}
\end{document}

\documentclass[]{scrreprt} 

\usepackage{tikz} 
\usepackage{subfig} 

\begin{document}
Hier ein wenig Text. 

\begin{figure}[htbp] 
   \subfloat[Die Linien]      % Zeichnet 7 vertikale Linien 
   {   \setlength{\unitlength}{7mm} 
      \begin{tikzpicture}
      
      \foreach \x in {1,2,3,4,5,6,7,8,9}  {
     
        \draw (\x,0)--(\x,3);}
            \end{tikzpicture} 
   }\quad 
   \subfloat[Die Zahl]      % Schreibt die Zahl 9 hin 
   {   \begin{tikzpicture}
         
         \draw[y=-1cm] (2, 2) node{$9$}; 
      \end{tikzpicture} 
   } 
   \caption{Some lines (a) and a number (b) in a figure.} 
\end{figure}
\end{document}

\documentclass[]{scrreprt}

\usepackage{tikz}
\usepackage{subfig}

\begin{document}

Hier ein wenig Text.

\begin{figure}[htbp]
	\subfloat[Die Linien]		% Zeichnet 7 vertikale Linien
	{	\setlength{\unitlength}{7mm}
		\begin{tikzpicture}[domain=0:1.1]
			\linethickness{0.075mm}
			\multiput(0,1)(1,0){7}{\line(0,1){6}}
		\end{tikzpicture}
	}\quad
	\subfloat[Die Zahl]		% Schreibt die Zahl 9 hin
	{	\begin{tikzpicture}[domain=0:1.1]
			\linethickness{0.075mm}
			\draw[y=-1cm] (2, 2) node{$9$};
		\end{tikzpicture}
	}
	\caption{Some lines (a) and a number (b) in a figure.}
\end{figure}

Wieso erstellt \LaTeX\ nicht die richtigen Freir\"aume f\"ur diese figure?

\end{document}