When energy levels for a lattice are constructed the Bloch wave vector is evaluated along the edges of the irruducible zone. Like [itex]\Gamma[/itex] - [itex]X[/itex] - [itex]M[/itex] path for a square lattice.(adsbygoogle = window.adsbygoogle || []).push({});

I wonder why the calculation is NOT performed for values within the zone? And how the energy corresponding to an arbitrary vector within the zone but not laying at the boundary can be obtained from a band-gap diagrams (plotted for example in [itex]\Gamma[/itex] - [itex]X[/itex] - [itex]M[/itex] coordinates)

Thanks in advance

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Irreducible Brillouin Zone

**Physics Forums | Science Articles, Homework Help, Discussion**