Conduction in non-crystalline materials

  title={Conduction in non-crystalline materials},
  author={N. Mott},
  • N. Mott
  • Published 1987
  • Chemistry, Materials Science
  • Abstract If the distance between atoms in a crystalline lattice is increased, an energy gap appears, which in a divalent material will separate occupied from unoccupied states of an electron. In a non-crystalline substance, a minimum is expected in the density of states (a ‘pseudogap’). An approximate theoretical estimate is given of the depth of the minimum at which the one-electron states become localized so that 〈σE(0)〉 vanishes; this turns out to be such that N(E F)/N(E F)free is about… CONTINUE READING
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