How electron have different energy for same value of momentum crystal lattice?
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Explanation:
In solid-state physics crystal momentum or quasimomentum[2] is a momentum-like vector associated with electrons in a crystal lattice. It is defined by the associated wave vectors {\displaystyle \mathbf {k} } of this lattice, according to
(where {\displaystyle \hbar }is the reduced Planck's constant).[3]:139 Frequently[clarification needed], crystal momentum is conserved like mechanical momentum, making it useful to physicists and materials scientists as an analytical tool.
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