Role of nonlinearity in resistive switching phenomena of lanthanum   calcium manganate heterostructures
  The present paper examines the influence of a nonlinear relationship between the local oxygen-vacancy concentration and the local resistivity on resistive switching effects in complex oxides. The continuity equation has been used as a model for the motion of oxygen vacancies when a periodic time-dependent electrical current is applied. The question of endurance of the switching cycles is discussed. It is found that nonlinearity of the resistivity-concentration dependence enhances the endurance. 
Irina V. Boylo
cond-mat.mes-hall