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diff --git a/solid_state_physics/tutorial/2_01s.tex b/solid_state_physics/tutorial/2_01s.tex
index a89285334154eae2075e616659fcb51e12e032eb..5e23232119761f750cf514cd2a41e1f4b2018b3d 100644 (file)
--- a/solid_state_physics/tutorial/2_01s.tex
+++ b/solid_state_physics/tutorial/2_01s.tex
@@ -103,7 +103,7 @@
              $
         \item $\chi=-\frac{1}{V}\mu_0\frac{\partial^2 E}{\partial B^2}
               \Rightarrow$
-             only second term contributes to $\chi$!
+             only second term contributes to $\chi$!\\
              $\chi=-\frac{1}{V}\mu_0\frac{e^2}{4m}<\phi|(x^2+y^2)|\phi>$
        \item $<\phi|x^2|\phi>=<\phi|y^2|\phi>=\frac{1}{3}<\phi|r^2|\phi>$\\
              $\Rightarrow \chi=-\frac{1}{V}\mu_0\frac{e^2}{6m}