Tag Archives: mean-field theory

Since Bragg and Williams (BW) wrote a series [1-3], I guess it is only fitting that my post on their classic should also be a series. So, here is the second part. After the first post, Abi made an astute … Continue reading →

The atomic arrangement in a crystal can be understood in terms of unit cells; for example, let us consider the metal copper; the arrangement of atoms in the copper crystal can be described using the face centred cubic (fcc) unit … Continue reading →