@article{d2b0cdf296414c8d89cb9e6580d42be6,
title = "Switching the curl of polarization vectors by an irrotational electric field",
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.",
author = "Fei Xue and Linze Li and Jason Britson and Zijian Hong and Heikes, {Colin Andrew} and Carolina Adamo and Schlom, {Darrell G.} and Xiaoqing Pan and Chen, {Long Qing}",
note = "Funding Information: The work at Penn State was supported by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award No. FG02-07ER46417 (F.X., J.B., and L.-Q.C.) and partially by the NSF MRSEC under Grants No. DMR-1420620 (F.X.) and No. DMR-1210588 (Z.H.). The work at the University of Michigan was supported by the DOE under Grant No. DE-FG02-07ER46416. The work at Cornell University was supported by the NSF (Nanosystems Engineering Research Center for Translational Applications of Nanoscale Multiferroic Systems) under Grant No. EEC-1160504. The authors would also like to acknowledge the National Center for Electron Microscopy at Lawrence Berkeley National Laboratory for their support under DOE Grant No. DE-AC02-05CH11231 for user facilities. Publisher Copyright: {\textcopyright} 2016 American Physical Society.",
year = "2016",
month = sep,
day = "26",
doi = "10.1103/PhysRevB.94.100103",
language = "English (US)",
volume = "94",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "10",
}