Scale effects and the formation of polarization vortices in tetragonal ferroelectrics
Scale effects and the formation of polarization vortices in tetragonal ferroelectrics.
Renuka Balakrishna A, Huber JE.
Applied Physics Letters 106(9), 092906. (2015)
Renuka Balakrishna A, Huber JE.
Applied Physics Letters 106(9), 092906. (2015)
Synopsis
We provide a fundamental insight into the absence of experimental observation of classic polarization vortices of the form described by Kittel. Using phase-field calculations, we show that scale and surface conditions greatly affects the stability of polarization vortices making them energetically unfavorable at the fine scale.
