Assume with the tight-binding framework that we need to

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Assume with the tight-binding framework, that we need to consider only 1 Wannier orbital from each site. The energy level of this Wannier orbital is e0 (i.e. alpha = -e0). In addition, we retain the nearest-neighbor tight-binding matrix t (i.e. gamma = -t )

(a) Determine the energy dispersion for a bcc strucutre and an fcc structure where a is the length of the cubic cell.

(b) Determine the effective mass near k = 0 for each case

Reference no: EM13632063

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