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Related Experiment Video

Updated: Aug 6, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

Emergent Ferroelectric Switching Behavior from Polar Vortex Lattice.

Piush Behera^1,2, Eric Parsonnet³, Fernando Gómez-Ortiz⁴

¹Department of Materials Science and Engineering, University of California Berkeley, Berkeley, CA, 94720, USA.

Advanced Materials (Deerfield Beach, Fla.)

|March 17, 2023

Summary

Topologically protected polar textures in ferroelectric materials exhibit unique bi-stability and metastable states. This discovery offers a novel method for non-destructive readout in advanced memory devices.

Keywords:

ferroelectric thin films topology vortex states

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Last Updated: Aug 6, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

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Published on: August 15, 2018

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

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Published on: May 15, 2017

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Published on: April 8, 2018

Area of Science:

Condensed Matter Physics
Materials Science
Nanotechnology

Background:

Topologically protected polar textures, such as ferroelectric vortices and skyrmions, are key to emergent phenomena.
These textures exhibit distinct properties compared to traditional ferroelectrics, with potential applications in memory devices.

Purpose of the Study:

To investigate the behavior of polar vortices in dielectric-ferroelectric-dielectric trilayers.
To explore the potential of these polar textures for novel memory device applications.

Main Methods:

Utilized capacitor-based capacitance measurements.
Employed computational modeling to analyze polar vortex behavior.

Main Results:

Demonstrated classical ferroelectric bi-stability in polar vortices.
Identified low-field metastable polarization states linked to in-plane vortex ordering.
Established a new method for non-destructive readout of the poled state.

Conclusions:

Polar vortex ordering in trilayers enables unique ferroelectric bi-stability and metastable states.
These characteristics can be leveraged for advanced, non-destructive memory readout technologies.