How does this compare with the gap at the middle of a face

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1. How well does the nearly free electron model predict the band structure of the Kronig-Penney model plotted in Figure 5.18?

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2. Estimate the width of the gap near the corner of the first Brillouin zone for a square two-dimensional crystal. How does this compare with the gap at the middle of a face?

Reference no: EM131349255

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