Fix a wrong reference: it should be super-, not semiconductors.

This was pointed out to me by Wei Zhao by email.

diff --git a/examples/step-25/doc/intro.dox b/examples/step-25/doc/intro.dox
index e06d36fc2737908eb087b1b75483b3b9186aa96b..2921259f3d85ce6bbfb1d55e627ed54a7ba30e93 100644 (file)
--- a/examples/step-25/doc/intro.dox
+++ b/examples/step-25/doc/intro.dox
@@ -15,7 +15,7 @@ the Schrödinger equation for particles with non-zero mass. The resemblance is n
 superficial, the sine-Gordon equation has been shown to model some
 unified-field phenomena such as interaction of subatomic particles
 (see, e.g., Perring &amp; Skyrme in Nuclear Physics <b>31</b>) and the
-Josephson (quantum) effect in semiconductors junctions (see, e.g., <a
+Josephson (quantum) effect in superconductor junctions (see, e.g., <a
 href="http://en.wikipedia.org/wiki/Long_Josephson_junction">http://en.wikipedia.org/wiki/Long_Josephson_junction</a>).
 Furthermore, from the mathematical standpoint, since the sine-Gordon
 equation is "completely integrable," it is a candidate for study using