Switching the curl of polarization vectors by an irrotational electric field

Fei Xue, Linze Li, Jason Britson, Zijian Hong, Colin Andrew Heikes, Carolina Adamo, Darrell G. Schlom, Xiaoqing Pan, Long Qing Chen

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Ferroelectric vortex domains are of significant interest due to their rich physics and potential applications. Here, we propose the crystallographic, strain, and electric conditions for spontaneous vortex domains and study the influence of oxygen octahedral tilt on vortex wall orientations. Using 109° domain walls in BiFeO3 films as an example, it is demonstrated that vortex domains result from bound charge-density waves, i.e., from alternating positive and negative bound charges. The vortex domains lead to a net curl of the polarization vectors that can be switched by an irrotational electric field.

Original languageEnglish (US)
Article number100103
JournalPhysical Review B
Volume94
Issue number10
DOIs
StatePublished - Sep 26 2016

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Xue, F., Li, L., Britson, J., Hong, Z., Heikes, C. A., Adamo, C., Schlom, D. G., Pan, X., & Chen, L. Q. (2016). Switching the curl of polarization vectors by an irrotational electric field. Physical Review B, 94(10), [100103]. https://doi.org/10.1103/PhysRevB.94.100103