Domain-Wall Ferroelectric Polarons in a Two-Dimensional Rotor Lattice Model
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.
Authors
- Georgios M. Koutentakis (ORCID: https://orcid.org/0000-0002-0955-8401)
- Mikhail Lemeshko (ORCID: https://orcid.org/0000-0002-6990-7802)
- Ragheed Alhyder (ORCID: https://orcid.org/0000-0002-0853-0714)
- Florian Kluibenschedl (ORCID: https://orcid.org/0000-0003-4695-5526)
Institutions
- Institute of Science and Technology Austria (AT)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-03-07
- DOI
- https://doi.org/10.1103/physrevlett.134.096302
- Citations
- 3
- Primary Topic
- Solid-state spectroscopy and crystallography
- Type
- article
- Field-Weighted Citation Impact
- 1.55
Funders
- European Commission
- Österreichischen Akademie der Wissenschaften
- Horizon 2020 Framework Programme
- European Research Council
- H2020 Marie Skłodowska-Curie Actions