Domain-Wall Ferroelectric Polarons in a two-dimensional Rotor Lattice Model

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.

6 pages, 4 figures

References in corpus (4)

• A tight-binding approach to uniaxial strain in graphene
• Diamondoid Molecules
• Rotational Coherence Times of Polar Molecules in Optical Tweezers
• Two-dimensional Hubbard Model in the presence of lattice distortions

Cited by in corpus (3)

• Polarons with arbitrary nonlinear electron-phonon interaction
• Reflections on future problems in cluster science
• Competition of light- and phonon-dressing in microwave-dressed Bose polarons