title: Electric field induced collapse of the charge-ordered phase in manganites.
abstract: The colossal electroresistance in manganites accompanies the insulator-to-metal phase transition induced by the electric field. A phenomenological phase transition model is proposed to study this electric field induced collapse of the charge-ordered phase. The hysteresis of the phase transition is well explained using the effective medium approximation. The volume fraction of the metallic region at the metal-to-insulator transition point is estimated as 30%.
authors.affiliation: Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, People's Republic of China. International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China.
authors.forename: S
authors.initials: S
authors.lastname: Dong
authors.forename: C
authors.initials: C
authors.lastname: Zhu
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: F
authors.initials: F
authors.lastname: Yuan
authors.forename: K F
authors.initials: KF
authors.lastname: Wang
authors.forename: J-M
authors.initials: JM
authors.lastname: Liu