513.001 Molecular and Solid State Physics

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Wolfram Alpha

Physical
Constants

Periodic System
of Elements

      

Phonon dispersion

(a) Sketch approximately the phonon dispersion curves for a monatomic simple cubic crystal and a CsCl crystal.

(b) Define what is meant by the first Brillouin zone and explain why the phonon dispersion curves are only drawn for the first Brillouin zone.