title: Phase transitions, phase coexistence, and piezoelectric switching behavior in highly strained BiFeO(3) films.
abstract: Highly strained BiFeO3 films transition into a true tetragonal state at 430 °C but remain polar to much higher temperatures (∼800 °C). Piezoelectric switching is only possible up to 300 °C, i.e., at temperatures for which strain stabilizes the stripe-like coexistence of multiple polymorphs.
authors.affiliation: Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
authors.forename: C
authors.initials: C
authors.lastname: Beekman
authors.forename: W
authors.initials: W
authors.lastname: Siemons
authors.forename: T Z
authors.initials: TZ
authors.lastname: Ward
authors.forename: M
authors.initials: M
authors.lastname: Chi
authors.forename: J
authors.initials: J
authors.lastname: Howe
authors.forename: M D
authors.initials: MD
authors.lastname: Biegalski
authors.forename: N
authors.initials: N
authors.lastname: Balke
authors.forename: P
authors.initials: P
authors.lastname: Maksymovych
authors.forename: A K
authors.initials: AK
authors.lastname: Farrar
authors.forename: J B
authors.initials: JB
authors.lastname: Romero
authors.forename: P
authors.initials: P
authors.lastname: Gao
authors.forename: X Q
authors.initials: XQ
authors.lastname: Pan
authors.forename: D A
authors.initials: DA
authors.lastname: Tenne
authors.forename: H M
authors.initials: HM
authors.lastname: Christen
keywords: BiFeO3; ferroelectric thin films; multiferroics; phase transitions; piezoelectric switching