External Magnetic Field & Electron Spin Interaction

  1. In my lecture notes, there is a slide about an external field interacting with a system of electron spins. In this situation can we assume that B=B_0 ( or in other words that μ_0*M =0)? I would think so, but does a system of electron spins imply that these electrons belong to some matter configuration (are bound), or can they to be treated as unbound electrons?
     
  2. jcsd
  3. Simon Bridge

    Simon Bridge 14,465
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    You will have to consider all that in the context of the lecture course ... there's not enough information.
     
  4. It's a Solid State Physics Course. The slide says that if you know the external field and the ratio of the number of electrons with spin parallel to anti-parallel that we can calculate the temperature when a field interacts with a set of electron spins.
     
  5. Simon Bridge

    Simon Bridge 14,465
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    In solid state the electrons are usually bound to some sort of crystal - the solid.
    You'll have done band-theory(?) so the electrons are (usually) treated as bound to a well that spans the entire crystal with the effect of unscreened lattice charges added as a perturbation.
     
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