Electric field control of chirality
Piush Behera,LARA ANDRADE LOPES,Fallon Salinas Gonzalez,Theo Hermans,Mr. Ganapat Jalindar Tad, Dr. Parmeshwar Lakshmanrao Suryavanshi +4 more
TLDR
In this article , the authors demonstrate deterministic and reversible control of chirality over mesoscale regions in ferroelectric vortices using an applied electric field using optical second-harmonic generation-based circular dichroism.Abstract:
Polar textures have attracted substantial attention in recent years as a promising analog to spin-based textures in ferromagnets. Here, using optical second-harmonic generation–based circular dichroism, we demonstrate deterministic and reversible control of chirality over mesoscale regions in ferroelectric vortices using an applied electric field. The microscopic origins of the chirality, the pathway during the switching, and the mechanism for electric field control are described theoretically via phase-field modeling and second-principles simulations, and experimentally by examination of the microscopic response of the vortices under an applied field. The emergence of chirality from the combination of nonchiral materials and subsequent control of the handedness with an electric field has far-reaching implications for new electronics based on chirality as a field-controllable order parameter. read more
Citations
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Perspectives on domain engineering for dielectric energy storage thin films
TL;DR: In this paper , the authors focus on the most state-of-the-art dielectric energy storage films in the framework of domain engineering, followed by articulative examples of their implementation in modulating domain sizes and symmetries that enhance the energy storage.
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Delineating complex ferroelectric domain structures via second harmonic generation spectral imaging
TL;DR: In this paper , the authors developed a SHG spectral imaging method implemented on a home-designed laser-scanning SHG microscope, and demonstrate its application for a model system of (K, Na)NbO 3 single crystals.
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Phase Diagram of a Strained Ferroelectric Nanowire
M. Pavlenko,F. Di Rino,Leo Francis Boron,S. Kondovych,Anaïs Sené,Y. Tikhonov,Anna G. Razumnaya,Valerii M. Vinokur,M. Sepliarsky,Igor A. Luk'yanchuk +9 more
TL;DR: In this paper , the vortex and helical chiral phase diagram of one-dimensional ferroelectric nanowires is presented, revealing a variety of the topological polarization states.
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Theoretical Understanding of Polar Topological Phase Transitions in Functional Oxide Heterostructures: A Review
TL;DR: In this paper , a review of the development of phase-field simulations for ferroelectric oxide heterostructures is presented and the current research progress of polar topological phases and their emergent phenomena in functional oxide topologies is reviewed from a theoretical perspective, including the topological polar structures, phase diagrams, their switching kinetics and interconnections, phonon dynamics, and various macroscopic properties.
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Entangled polarizations in ferroelectrics: A focused review of polar topologies
TL;DR: In this article , the authors summarize the recent progress in polar topologies in ferroelectric oxides, including flux-closure quadrant, vortex, bubble, skyrmion, meron lattice, polar waves, and center-type domains.
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