Question: K 2. 2. (I) Use tight binding approximation, calculate the band width of a facecentered cubic lattice. {2) Use tight binding approximation, calculate the band

K 2.

2. (I) Use tight binding approximation, calculate the band width of a facecentered cubic lattice. {2) Use tight binding approximation, calculate the band width of a two-dimensional square lattice. Note: treat J, the hopping integral, as a parameter

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