Work

Domain-Wall Ferroelectric Polarons in a Two-Dimensional Rotor Lattice Model

Year: 2025

Type: article

Abstract: We demonstrate the formation of ferroelectric domain-wall polarons in a minimal two-dimensional lattice model of electrons interacting with rotating dipoles. Along the domain wall, the rotors polarize in opposite directions, causing the electron to localize along a particular lattice direction. The rotor-electron coupling is identified as the origin of a structural instability in the crystal that leads to the domain-wall formation via a symmetry-breaking process. Our results provide the first theoretical description of ferroelectric polarons, as discussed in the context of soft semiconductors.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.134.096302

Authors: Florian Kluibenschedl, Georgios M. Koutentakis, Ragheed Alhyder, Mikhail Lemeshko

Institution: Institute of Science and Technology Austria

Language: English

Topic: Ferroelectric and Piezoelectric Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,750