Update 4_sommerfeld_model.md

src/4_sommerfeld_model.md

@@ -139,7 +139,7 @@ ax.plot(kfilled, Efilled, 'b-', linewidth=4);
 ax.axhline(kf*kf, linestyle="dotted", color='k');
 
 ax.set_xticks([kf]);
-ax.set_yticks([kf*kf + 0.6]);
+ax.set_yticks([kf*kf + 0.4]);
 ax.set_xticklabels([r"$k_F$"]);
 ax.set_yticklabels([r"$\varepsilon_F$"]);