Topological phases in polar oxide nanostructures

J Junquera, Y Nahas, S Prokhorenko, L Bellaiche… - Reviews of Modern …, 2023 - APS
The past decade has witnessed dramatic progress related to various aspects of emergent
topological polar textures in oxide nanostructures displaying vortices, skyrmions, merons …

Entangled polarizations in ferroelectrics: A focused review of polar topologies

YJ Wang, YL Tang, YL Zhu, XL Ma - Acta Materialia, 2023 - Elsevier
Ferroelectric crystals feature asymmetric or polar structures that are switchable under an
external electric field, holding promise for information storage. Nanoscale ferroelectrics …

Absence of critical thickness for polar skyrmions with breaking the Kittel's law

FH Gong, YL Tang, YJ Wang, YT Chen, B Wu… - Nature …, 2023 - nature.com
The period of polar domain (d) in ferroics was commonly believed to scale with
corresponding film thicknesses (h), following the classical Kittel's law of d∝ h. Here, we …

Emergent chirality in a polar meron to skyrmion phase transition

YT Shao, S Das, Z Hong, R Xu, S Chandrika… - Nature …, 2023 - nature.com
Polar skyrmions are predicted to emerge from the interplay of elastic, electrostatic and
gradient energies, in contrast to the key role of the anti-symmetric Dzyalozhinskii-Moriya …

Phase‐Field Simulations of Tunable Polar Topologies in Lead‐Free Ferroelectric/Paraelectric Multilayers with Ultrahigh Energy‐Storage Performance

Y Liu, J Liu, H Pan, X Cheng, Z Hong, B Xu… - Advanced …, 2022 - Wiley Online Library
Dielectric capacitors are emerging energy‐storage components that require both high
energy‐storage density and high efficiency. The conventional approach to energy‐storage …

Ferroelectric texture of individual barium titanate nanocrystals

AK Muraleedharan, K Co, M Vallet, A Zaki, F Karolak… - ACS …, 2024 - ACS Publications
Ferroelectric materials display exotic polarization textures at the nanoscale that could be
used to improve the energetic efficiency of electronic components. The vast majority of …

Electric Field‐Manipulated Optical Chirality in Ferroelectric Vortex Domains

H Han, W Li, Q Zhang, S Tang, Y Wang, Z Xu… - Advanced …, 2024 - Wiley Online Library
Manipulating optical chirality via electric fields has garnered considerable attention in the
realm of both fundamental physics and practical applications. Chiral ferroelectrics …

Ferroelectric solitons crafted in epitaxial bismuth ferrite superlattices

V Govinden, P Tong, X Guo, Q Zhang, S Mantri… - Nature …, 2023 - nature.com
In ferroelectrics, complex interactions among various degrees of freedom enable the
condensation of topologically protected polarization textures. Known as ferroelectric …

Stabilization and control of weakly correlated polar skyrmions in ferroelectric thin films

J Ren, L Liu, F Sun, Q He, M Wu, W Chen, Y Zheng - Acta Materialia, 2024 - Elsevier
In recent years, polar topological textures like skyrmions and vortices in ferroelectric
superlattices and multilayers have received extensive attention. However, the polar …

Pure Chiral Polar Vortex Phase in PbTiO3/SrTiO3 Superlattices with Tunable Circular Dichroism

S Das, MR McCarter, F Gómez-Ortiz, YL Tang… - Nano Letters, 2023 - ACS Publications
Nontrivial polarization textures have been demonstrated in ferroelectric/dielectric
superlattices, where the electrostatic, elastic, and different gradient energies compete in a …