Spin fluctuations in iron pnictide superconductors

Ilya Eremin kindly sent a link to a copy of the nice talk he gave on spin fluctuations in the iron pnictide superconductors. Reading the slides will be more helpful than my rough notes I posted earlier. Important issues addressed include:

• What are similarities and differences between the cuprates and pnictides?
• Is the key difference, the pnictides are less strongly correlated?
• If so, how does one describe/explain the magnetic order in the pnictides?