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

External Magnetic Field & Electron Spin Interaction

  1. Nov 22, 2013 #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. Nov 22, 2013 #2

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    You will have to consider all that in the context of the lecture course ... there's not enough information.
     
  4. Nov 22, 2013 #3
    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. Nov 23, 2013 #4

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    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.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted