Empty lattice approximation: Difference between revisions

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Revision as of 07:05, 13 April 2013

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{{Electronic structure methods}}

The '''empty lattice approximation''' is a theoretical [[electronic band structure]] model in which the '''potential''' is defined not more precisely than '''periodic''' and '''weak'''. The empty lattice approximation describes a number of properties of energy dispersion relations of non-interacting '''[[Free electron model|'''free electrons]]''']] that move through a '''[[crystal structure|crystal lattice]]'''. The energy of the electrons in the "empty lattice" is the same as the energy of free electrons. The model is useful because it clearly illustrates a number of the sometimes very complex features of energy dispersion relations in solids which are fundamental to all electronic band structures.

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