HOMEWORK ASSIGNMENT #2, PHYSICS 5335, FALL, 2000

in Yu and Cardona’s book & also in many others) to find . explicit expressions. for the . k. dependence of the band structure of this simple solid. Assume only nearest-neighbor overlap energies enter the calculation. You will get two bands, with a gap between them. Express your answers as functions of . k, in terms of the . s ................
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