2011/06/16 by Manas Kumar Roy, Roy, Manas Kumar, Sushanta Dattagupta +1
Engineering · Materials Science · Physics and Astronomy · #Characterization and Applications of Magnetic Nanoparticles #FOS: Physical sciences #Ferroelectric and Piezoelectric Materials #Liquid Crystal Research Advancements #Materials Science (cond-mat.mtrl-sci) #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1106.3191
9 pages, 4 figures
arxiv created 2011/06/16 · openalex publication_date 2011/06/16 · arxiv updated 2011/06/17 · openalex created_date 2022/10/02 · openalex updated_date 2026/07/28
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.