Antiferron Modes in Ferroelectric Materials

TL;DR

This paper introduces antiferron modes in ferroelectric materials as dynamically stabilized excitations over inverted polarization states, expanding understanding of collective excitations and potential applications in electrical sensing devices.

Contribution

It presents the theoretical framework for antiferron modes, including derivation of effective curvature corrections and conditions for stabilization, a novel concept in ferroelectric physics.

Findings

Antiferrons are dynamically stabilized collective excitations in ferroelectrics.

Derived conditions for stabilizing metastable polarization states.

Proposed antiferrons as tunable, high-sensitivity electric field sensors.

Abstract

We introduce the concept of antiferron modes in ferroelectric materials as dynamically stabilized collective excitations over inverted polarization states that decrease the system energy. While ferrons represent quantized oscillations around the stable polarization minimum, antiferrons require dynamic stabilization via high-frequency driving. Using a generalized Landau-Ginzburg-Devonshire framework, we derive the effective curvature corrections from external driving, demonstrate the conditions for stabilizing metastable wells, and present the quantized Hamiltonian. Antiferrons could be a promising candidate for developing electrical sensing devices, offering tunable, dynamically controllable excitations with high sensitivity to external electric fields.