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Bohr - van Leuven Theorem ?

  1. Sep 27, 2008 #1
    Bohr - van Leuven Theorem ??

    Has anybody heard of this theorem? I remember vaugely that it has to do something with the work being done on magnetic dipoles / spins. I can't find it anywhere on the internet. I'm really curious...

  2. jcsd
  3. Oct 31, 2008 #2
    Re: Bohr - van Leuven Theorem ??

    This theorem states that a system of N charges (not dipoles) in a magnetic field has zero magnetic susceptivity. I have studied this subject for my Statistical mechanics exam, I had to show the validity of this theorem. It can be done by showing that the partition function of this system is independent on the magnetic field.
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