Commit 6ce86d9c authored by T. van der Sar's avatar T. van der Sar
Browse files

Update 7_tight_binding.md - typo

parent 02e0ec5b
......@@ -293,7 +293,7 @@ $$ \langle \phi_n | H | \phi_{n+2}\rangle \equiv -t' ≠ 0.$$
??? hint
Use the same Ansatz as for the nearest neighbors case: $ \phi_n = A \exp(ikna) $.
Use the same Ansatz as for the nearest neighbors case: $ \phi_n = \phi_0 \exp(ikna) $.
3. Calculate the effective mass $m^*$.
4. Sketch the effective mass as a function of $k$ for the cases $t=2t'$,$t=4t'$ and $t=10t'$.
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