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Problem: Nearly Free Electrons in Dirac-Delta Potentials

  Atoms are arranged in a one-dimensional chain with lattice spacing a. Each atom is represented by the potential tex2html_wrap_inline5943 . Determine the energy gaps between the bands, assuming that the nearly free-electron approximation applies.

 

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Laszlo Mihaly
Thu Oct 31 13:23:11 EST 1996

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