Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Debye model in Statistical Physics

  1. May 1, 2013 #1
    Was Debye's basic idea for a solid body to neglect the dispersion Einstein talked about in his model?
     
  2. jcsd
  3. May 1, 2013 #2

    Jano L.

    User Avatar
    Gold Member

    What model do you mean? The Einstein model of specific heat of solid? If so, then it was quite the opposite way: the Einstein model considers atoms as independent oscillators of the same frequency. The Debye model, on the other hand, considers normal modes of the whole solid body, and thus includes dispersion - different modes have different frequencies.
     
  4. May 1, 2013 #3
    At k< π/a (a being interatomic distance, dispersion didn't exist in Einstein's model, but at k>π/a dispersion exists). Correct me if am wrong.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Debye model in Statistical Physics
  1. The statistics (Replies: 2)

Loading...