title: Giant enhancement of ferroelectric retention in BiFeO3 mixed-phase boundary.
abstract: A large enhancement of nanodomain retention is shown in the mixed-phase region of a strained BiFeO3 epitaxial film. The superior ferroelectric retention is attributed to a lower elastic-energy density at the phase boundaries, which act as periodic pinning centers for the domain wall motion. This study delivers a new pathway of incorporating an elastic-energy term to assist ferroelectric retention.
authors.affiliation: Department of Physics, National Cheng Kung University, Tainan, 70101, Taiwan.
authors.forename: Yen-Chin
authors.initials: YC
authors.lastname: Huang
authors.forename: Yunya
authors.initials: Y
authors.lastname: Liu
authors.forename: Yi-Tsu
authors.initials: YT
authors.lastname: Lin
authors.forename: Heng-Jui
authors.initials: HJ
authors.lastname: Liu
authors.forename: Qing
authors.initials: Q
authors.lastname: He
authors.forename: Jiangyu
authors.initials: J
authors.lastname: Li
authors.forename: Yi-Chun
authors.initials: YC
authors.lastname: Chen
authors.forename: Ying-Hao
authors.initials: YH
authors.lastname: Chu
keywords: domain wall motion; nanoscale domain retention; periodic potential; phase boundaries; strained BiFeO3