Nonequilibrium superconducting and magnetic phases in a correlated electron system coupled to electrodes

Takashi Oka, Hideo Aoki
2010 Physical Review B  
A theory is presented for a nonequilibrium phase transition in the two-dimensional Hubbard model coupled to electrodes. Nonequilibrium magnetic and superconducting phase diagram is determined by the Keldysh method, where the electron correlation is treated in the fluctuation exchange approximation. The nonequilibrium distribution function in the presence of electron correlation is evoked to capture a general feature in the phase diagram.
doi:10.1103/physrevb.82.064516 fatcat:oiu3eqr5gzc2paxcntxtsdklfi