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Semi-core bands

  1. Dec 9, 2008 #1
    Hi friends,

    I am currently reading a review of band-structure calculation of group-III nitrides. I got stuck at 'Of importance is that the Local Density Approximation(LDA) method can handle the overlapping between the Ga 3d semi-core bands with the N 2s bands, which leads to two separate bands.' What does this 'semi-core bands' mean?

    Thank you.
    Last edited: Dec 9, 2008
  2. jcsd
  3. Dec 12, 2008 #2


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    Homework Helper

    I think they might just mean that those bands are flatter than the others which makes them similar to deep core electrons (which have nearly no dispersion).
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