energy band model

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• band — band1 /band/, n. 1. a company of persons or, sometimes, animals or things, joined, acting, or functioning together; aggregation; party; troop: a band of protesters. 2. Music. a. a group of instrumentalists playing music of a specialized type:… …   Universalium

• band theory — In chemistry and physics, a theoretical model describing the states of electrons in solid materials, which can have energy values only within certain specific ranges, called bands. Ranges of energy between two allowed bands are called forbidden… …   Universalium

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• Model solid approximation — Electronic structure methods Tight binding Nearly free electron model Hartree–Fock method Modern valence bond Generalized valence bond Møller–Plesset perturbation theory …   Wikipedia

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• Free electron model — In three dimensions, the density of states of a gas of fermions is proportional to the square root of the kinetic energy of the particles. In solid state physics, the free electron model is a simple model for the behaviour of valence electrons in …   Wikipedia