Domain-Wall Ferroelectric Polarons in a two-dimensional Rotor Lattice Model
F Kluibenschedl, GM Koutentakis, R Alhyder… - arXiv preprint arXiv …, 2024 - arxiv.org
arXiv preprint arXiv:2407.19993, 2024•arxiv.org
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 …
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 …
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.
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