Interface ordering and phase competition in a model   Mott-insulator--band-insulator heterostructure
  The phase diagram of model Mott-insulator--band-insulator heterostructures is studied using the semiclassical approximation to the dynamical-mean-field method as a function of thickness, coupling constant, and charge confinement. An interface-stabilized ferromagnetic phase is found, allow the study of its competition and possible coexistence with the antiferromagnetic order characteristic of the bulk Mott insulator. 
Satoshi Okamoto and Andrew J. Millis