nearly free electron method

nearly free electron method

[¦nir·lē ¦frē i¦lek‚trän ‚meth·əd]
(solid-state physics)
A method of approximating the energy levels of electrons in a crystal lattice by considering the potential energy resulting from atomic nuclei and from other electrons in the lattice as a perturbation on free electron states. Abbreviated NFE method.
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