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arXiv · 1106.3191

Formation of vortex and antivortex polarization states in ferroelectric films

Manas Kumar Roy·Sushanta Dattagupta
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Abstract

An effort based on the kinetic model allowed by Landau-Ginzburg-Devonshire theory is presented here. The formation of vortex, antivortex states in ferroelectric films are reported and theoretically explained. Phase transition in toroidal moment is observed. Vortex-antivortex-vortex (V-AV-V) triplet is generated by applying inhomogeneous transverse static localized fields in x-y plane. A specific boundary condition is used to keep the spirit of vortex state i.e. the net polarization across the boundary is always zero. %This is neither a periodic nor an open circuit electric boundary condition.

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Manas Kumar Roy, Sushanta Dattagupta. 2011-06-16. Formation of vortex and antivortex polarization states in ferroelectric films. https://arxiv.org/abs/1106.3191

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