513.001 Molecular and Solid State Physics | |
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NaClNaCl is an insulator with an fcc Bravais lattice. There are two atoms in the basis. (a) What does the first Brillouin zone look like? (b) Draw approximately the phonon dispersion relation for NaCl along L-Γ-X. (c) Draw approximately the electron dispersion relation for NaCl along L-Γ-X. $\large \overline{\Gamma L}=\frac{\sqrt{3}\pi}{a}$ $\large \overline{\Gamma X}=\frac{2\pi}{a}$ |