Bloch's Theorem ·
Band Structure
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ψ
e^(ik·r) u(r)
Crystal momentum
ħk
phase
—
Ionic lattice (period a)
Plane-wave envelope e^(ik·r)
Bloch wave ψ = e^(ik·r) u(r)
Bands E(k) & forbidden gaps
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.com · Bloch's Theorem