Why the mass action law is not valid for very low temperatures?

  1. why the mass action law is not valid for very low temperatures??

    Hi,
    In the context of semiconductors, I was asked why the mass action law is not valid for very low temperatures. I thought that it was valid, since for very low temperature it holds the non-degeneracy condition [tex] E_g >> k_B T [/tex] (I think so...). But maybe for some other reason it breaks. Does someone know why??? Thanks!
     
    Last edited: Dec 5, 2013
  2. jcsd
  3. I am not sure, but perhaps it is related to the behavior of electrons in the lattice, which becomes more prominent at lower temperatures (or low energies)?
     
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