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Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
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Liquid-matter relaxor ferroelectrics by design.

Xinxin Zhang1, Yu Zou1, Minghui Deng1

  • 1South China Advanced Institute for Soft Matter Science and Technology (AISMST), School of Emergent Soft Matter, South China University of Technology, Guangzhou, China.

Nature Communications
|October 22, 2025
PubMed
Summary
This summary is machine-generated.

Researchers developed a new fluidic and flexible material called nematic relaxor ferroelectrics. This novel polar matter state exhibits high field-induced polarization and transitions between relaxor and ferroelectric states.

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Ferroelectricity

Background:

  • Traditional relaxor ferroelectrics are crystalline.
  • Exploring liquid-matter analogies for ferroelectrics is challenging.
  • A generic design of fluidic and flexible relaxor ferroelectrics is desired.

Purpose of the Study:

  • To unveil a novel polar matter state with fluidic and flexible properties.
  • To investigate the characteristics of nematic relaxor ferroelectrics.
  • To understand the transition mechanisms between relaxor and ferroelectric states.

Main Methods:

  • Artificial introduction of polar nanoregions with nematicity into a dielectric nematic environment.
  • Observation of nematic relaxor signatures.
  • Analysis of electric field vs. polarization curves.
  • Reconstruction of free-energy landscapes using Landau-Ginzburg-Devonshire theory.

Main Results:

  • Discovery of a nematic relaxor ferroelectric state.
  • Observation of high field-induced polarization (1.1 μC·cm⁻² at 5 V·μm⁻¹).
  • Demonstration of two regimes: stable relaxor at high temperatures and field-induced ferroelectric transition at low temperatures.
  • Continuous transformation of energy landscapes from double-well to single-well shapes.

Conclusions:

  • The nematic relaxor ferroelectric represents a novel polar matter state.
  • This state exhibits tunable properties and transitions between ferroelectric and relaxor behaviors.
  • The findings pave the way for designing fluidic and flexible ferroelectric materials.