Electronic band structures

Crystal momentum

In solid-state physics crystal momentum or quasimomentum is a momentum-like vector associated with electrons in a crystal lattice. It is defined by the associated wave vectors of this lattice, according to (where is the reduced Planck's constant).Frequently, crystal momentum is conserved like mechanical momentum, making it useful to physicists and materials scientists as an analytical tool. (Wikipedia).

Crystal momentum
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Momentum | Commutator | Ion | Electron scattering | Hamiltonian (quantum mechanics) | Electron | Bravais lattice | Reciprocal lattice | Noether's theorem | Quantum number