semiconductors fundamentals.pdf
semiconductors fundamentals.pdf
semiconductors fundamentals.pdf
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• Bloch theorem<br />
• U (r)= U (r+R),<br />
R is any lattice vector<br />
• H=P 2 /2m+ U (r)<br />
• H Φ = E Φ<br />
• Φ k (r)= = e ik·r u (r)<br />
• u (r) = u (r+R)<br />
• k could be used to specify the electronic<br />
state and p=ћk, is the crystal momentum of<br />
the electron in the lattice
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