What Differentiates Crossovers from Phase Transitions in Thermodynamics?

[andlessa]

Hi,

Could anyone point me to a reference (textbook, review article...) with a clear explanation of the physics of crossovers? My main interest is to understand it in a microscopical level or in terms of a phenomenological effective potential a la second order phase transitions. I'd like to understand under what conditions a theory moves from a phase transition to a crossover.
Sorry for such a basic question, but I've always had a very poor knowledge of thermodynamics.

Thanks

 

[TheDestroyer]

I think Schwabl - Statistical mechanics has a good chapter about phase transitions :)