title: Electrophoretic-like gating used to control metal-insulator transitions in electronically phase separated manganite wires.
abstract: Electronically phase separated manganite wires are found to exhibit controllable metal-insulator transitions under local electric fields. The switching characteristics are shown to be fully reversible, polarity independent, and highly resistant to thermal breakdown caused by repeated cycling. It is further demonstrated that multiple discrete resistive states can be accessed in a single wire. The results conform to a phenomenological model in which the inherent nanoscale insulating and metallic domains are rearranged through electrophoretic-like processes to open and close percolation channels.
authors.affiliation: Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.
authors.forename: Hangwen
authors.initials: H
authors.lastname: Guo
authors.forename: Joo H
authors.initials: JH
authors.lastname: Noh
authors.forename: Shuai
authors.initials: S
authors.lastname: Dong
authors.forename: Philip D
authors.initials: PD
authors.lastname: Rack
authors.forename: Zheng
authors.initials: Z
authors.lastname: Gai
authors.forename: Xiaoshan
authors.initials: X
authors.lastname: Xu
authors.forename: Elbio
authors.initials: E
authors.lastname: Dagotto
authors.forename: Jian
authors.initials: J
authors.lastname: Shen
authors.forename: T Zac
authors.initials: TZ
authors.lastname: Ward