Tailored laser pulses excite coherent phonons to reversibly switch 2D Nb2O2I4 between ferroelectric, antiferroelectric, and ferrielectric phases via anharmonic distortions.
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Reversable phase transitions in ferroic two-dimensional Nb2O2I4 through optically excited coherent phonons
Tailored laser pulses excite coherent phonons to reversibly switch 2D Nb2O2I4 between ferroelectric, antiferroelectric, and ferrielectric phases via anharmonic distortions.