Merge pull request #29 from NaoPross/master

Add figures and new text on crystals and piezoelectricity

1 files changed, 56 insertions, 0 deletions

diff --git a/buch/papers/punktgruppen/tikz/combine-symmetries.tex b/buch/papers/punktgruppen/tikz/combine-symmetries.tex
new file mode 100644
index 0000000..84e0a76
--- /dev/null
+++ b/buch/papers/punktgruppen/tikz/combine-symmetries.tex
@@ -0,0 +1,56 @@
+\documentclass[tikz]{standalone}
+\usepackage{amsmath}
+\usepackage{times}
+\usepackage{txfonts}
+
+\usetikzlibrary{arrows}
+\usetikzlibrary{intersections}
+\usetikzlibrary{math}
+\usetikzlibrary{positioning}
+\usetikzlibrary{arrows.meta}
+\usetikzlibrary{shapes.misc}
+\usetikzlibrary{calc}
+
+\begin{document}
+\begin{tikzpicture}[
+    dot/.style = {
+      draw, circle, thick, black, fill = gray!40!white,
+      minimum size = 2mm,
+      inner sep = 0pt,
+      outer sep = 1mm,
+    },
+  ]
+
+  \node[dot] (A1) at (0,0) {};
+  \node[below left] at (A1) {\(A\)};
+
+  \node[dot] (A2) at (2.5,0) {};
+  \node[below right] at (A2) {\(A'\)};
+
+  \draw[red!80!black, thick, ->] 
+    (A1) to node[midway, below] {\(\vec{Q}\)} (A2);
+
+  \node[dot] (B1) at (120:2.5) {};
+  \node[above left] at (B1) {\(B\)};
+
+  \draw[green!70!black, thick, ->]
+    (A1) ++(.5,0) arc (0:120:.5)
+    node[midway, above, xshift=1mm] {\(C_n\)};
+  \draw[red!80!black, dashed, thick, ->] (A1) to (B1);
+
+  \node[dot] (B2) at ($(A2)+(60:2.5)$) {};
+  \node[above right] at (B2) {\(B'\)};
+
+  \draw[green!70!black, thick, dashed, ->]
+    (A2) ++(-.5,0) arc (180:60:.5);
+  \draw[red!80!black, dashed, thick, ->] (A2) to (B2);
+
+  \draw[yellow!50!orange, thick, ->]
+    (B1) to node[above, midway] {\(\vec{Q}'\)} (B2);
+
+  \draw[gray, dashed, thick] (A1) to (A1 |- B1) node (Xl) {};
+  \draw[gray, dashed, thick] (A2) to (A2 |- B2) node (Xr) {};
+  \node[above left, xshift=-2mm] at (Xl) {\(x\)};
+  \node[above right, xshift= 2mm] at (Xr) {\(x\)};
+\end{tikzpicture}
+\end{document}