Lecture 22: Antiferromagnets

11/04/2006

Listen "Lecture 22: Antiferromagnets"

Episode Synopsis

We finish off the low temperature corrections to the magnetization in a ferromagnet due to spin wave excitations, and also calculate the energy and heat capacity of spin waves. Now, on to antiferromagnets, where neighboring spins are antialigned. We derive the susceptibility, and the spin wave dispersion. Due to technical difficulties, I post last year's audio:Lecture Audio