  We provide a description of phase transitions at finite temperature in
strongly coupled field theories using holography. For this purpose, we
introduce a general class of gravity duals to superconducting theories that
exhibit various types of phase transitions (first or second order with both
mean and non-mean field behavior) as parameters in their Lagrangian are
changed. Moreover the size and strength of the conductivity coherence peak can
also be controlled. Our results suggest that certain parameters in the
gravitational dual control the interactions responsible for binding the
condensate and the magnitude of its fluctuations close to the transition.
