article published yes Georgios Koutentakis author d7b23d3a-9e21-11ec-b482-f76739596b95 Areg Ghazaryan author 4AF46FD6-F248-11E8-B48F-1D18A9856A870000-0001-9666-3543 Mikhail Lemeshko author 37CB05FA-F248-11E8-B48F-1D18A9856A870000-0002-6990-7802 MiLe department IST-BRIDGE: International postdoctoral program project Angulon: physics and applications of a new quasiparticle project We present a minimal model of ferroelectric large polarons, which are suggested as one of the mechanisms responsible for the unique charge transport properties of hybrid perovskites. We demonstrate that short-ranged charge–rotor interactions lead to long-range ferroelectric ordering of rotors, which strongly affects the carrier mobility. In the nonperturbative regime, where our theory cannot be reduced to any of the earlier models, we reveal that the polaron is characterized by large coherence length and a roughly tenfold increase of the effective mass as compared to the bare mass. These results are in good agreement with other theoretical predictions for ferroelectric polarons. Our model establishes a general phenomenological framework for ferroelectric polarons providing the starting point for future studies of their role in the transport properties of hybrid organic-inorganic perovskites. https://research-explorer.ista.ac.at/download/14486/14493/2023_PhysReviewResearch_Koutentakis.pdf application/pdfno American Physical Society2023 eng 2643-1564 2301.0987510.1103/PhysRevResearch.5.043016 54 Koutentakis, Georgios, et al. “Rotor Lattice Model of Ferroelectric Large Polarons.” <i>Physical Review Research</i>, vol. 5, no. 4, 043016, American Physical Society, 2023, doi:<a href="https://doi.org/10.1103/PhysRevResearch.5.043016">10.1103/PhysRevResearch.5.043016</a>. Koutentakis, G., Ghazaryan, A., &#38; Lemeshko, M. (2023). Rotor lattice model of ferroelectric large polarons. <i>Physical Review Research</i>. American Physical Society. <a href="https://doi.org/10.1103/PhysRevResearch.5.043016">https://doi.org/10.1103/PhysRevResearch.5.043016</a> Koutentakis, Georgios, Areg Ghazaryan, and Mikhail Lemeshko. “Rotor Lattice Model of Ferroelectric Large Polarons.” <i>Physical Review Research</i>. American Physical Society, 2023. <a href="https://doi.org/10.1103/PhysRevResearch.5.043016">https://doi.org/10.1103/PhysRevResearch.5.043016</a>. G. Koutentakis, A. Ghazaryan, and M. Lemeshko, “Rotor lattice model of ferroelectric large polarons,” <i>Physical Review Research</i>, vol. 5, no. 4. American Physical Society, 2023. Koutentakis G, Ghazaryan A, Lemeshko M. 2023. Rotor lattice model of ferroelectric large polarons. Physical Review Research. 5(4), 043016. Koutentakis G, Ghazaryan A, Lemeshko M. Rotor lattice model of ferroelectric large polarons. <i>Physical Review Research</i>. 2023;5(4). doi:<a href="https://doi.org/10.1103/PhysRevResearch.5.043016">10.1103/PhysRevResearch.5.043016</a> G. Koutentakis, A. Ghazaryan, M. Lemeshko, Physical Review Research 5 (2023). 144862023-11-05T23:00:53Z2025-04-14T07:48:54Z