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Relation between crystal momentum of the electron and other momentums

  1. Nov 19, 2013 #1
    As far as I know, [tex]F_ {ext} = d (\hbar k)/dt = d p_{electron} / dt + d P_{crystal} /dt.[/tex] could one say that [tex] \hbar k = P_{electron} + P_{crystal}?[/tex]
     
  2. jcsd
  3. Dec 2, 2013 #2

    DrDu

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