Talk:Empty lattice approximation

Physics Low‑importance

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
Low	This article has been rated as Low-importance on the project's importance scale.

Chemistry Low‑importance

	This article is within the scope of WikiProject Chemistry, a collaborative effort to improve the coverage of chemistry on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ChemistryWikipedia:WikiProject ChemistryTemplate:WikiProject ChemistryChemistry articles
Low	This article has been rated as Low-importance on the project's importance scale.

The fcc figure is clearly incorrect because it is not the same at the two points labeled Gamma. The free electron bands can be drawn for every Bravais lattice. Hcp is not a Bravais lattice. The Bravais lattice of hcp is hexagonal and there are two atoms in the basis. I suspect that the figure labeled as the free electron bands for hcp is intended to be those for hexagonal with an a/c ratio corresponding to hcp. This figure is also clearly incorrect since there can be no peaks or dips in the bands between the symmetry points like the ones seen in this plot between Gamma and K. (Hadleytugraz (talk) 11:06, 29 September 2011 (UTC))Reply

Add topic