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| Format: | Recurso digital |
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Zenodo
2026
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| Online Access: | https://doi.org/10.5281/zenodo.18607683 |
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Table of 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>