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Zenodo
2026
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| Online Access: | https://doi.org/10.5281/zenodo.18607683 |
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| _version_ | 1866901275404140544 |
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| author | Ganciu, Mihai |
| author_facet | Ganciu, Mihai |
| contents | <p>This preprint reports the experimental discovery of a dynamical transition between two distinct oscillatory regimes in a bulk ferroelectric operated at room temperature, far below its Curie temperature. Following a fast electrical excitation, the system evolves from a high‑permittivity, strongly damped response into a low‑permittivity, high‑Q oscillatory state. The transition is controlled by the initial charging voltage and reflects the nonlinear dependence of the effective capacitance on the polarization amplitude. A theoretical framework based on an inertial Landau–Khalatnikov–Tani model captures the existence of a dynamical threshold separating the two regimes. These results reveal a previously unexplored aspect of ferroelectric dynamics and establish the presence of multiple oscillatory attractors deep in the ordered phase.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_18607683 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Dynamical Transition Between High Permittivity and Low Permittivity Oscillatory Regimes in a Ferroelectric Deep in the Ordered Phase Ganciu, Mihai <p>This preprint reports the experimental discovery of a dynamical transition between two distinct oscillatory regimes in a bulk ferroelectric operated at room temperature, far below its Curie temperature. Following a fast electrical excitation, the system evolves from a high‑permittivity, strongly damped response into a low‑permittivity, high‑Q oscillatory state. The transition is controlled by the initial charging voltage and reflects the nonlinear dependence of the effective capacitance on the polarization amplitude. A theoretical framework based on an inertial Landau–Khalatnikov–Tani model captures the existence of a dynamical threshold separating the two regimes. These results reveal a previously unexplored aspect of ferroelectric dynamics and establish the presence of multiple oscillatory attractors deep in the ordered phase.</p> |
| title | Dynamical Transition Between High Permittivity and Low Permittivity Oscillatory Regimes in a Ferroelectric Deep in the Ordered Phase |
| url | https://doi.org/10.5281/zenodo.18607683 |