Tailored laser pulses excite coherent phonons to reversibly switch 2D Nb2O2I4 between ferroelectric, antiferroelectric, and ferrielectric phases via anharmonic distortions.
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Multiferrons are defined as elementary excitations with both electric and magnetic character that tilt polarization, generate magnetization via dynamical multiferroicity, and carry quadrupole and octupole moments, as computed for LiNbO3.
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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.
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Lattice excitations with finite polarization and magnetization
Multiferrons are defined as elementary excitations with both electric and magnetic character that tilt polarization, generate magnetization via dynamical multiferroicity, and carry quadrupole and octupole moments, as computed for LiNbO3.