4 papers · 1 filter
The hidden ferroelectric chiral ground state of silver niobate
Safari Amisi, Fernando Gómez-Ortiz, Fernando Gómez-Ortiz +2
Silver niobate is a conventional perovskite oxide compound, known to exhibit a rich polymorphism. Although often classified as antiferroelectric, its low-temperature structure rema…
Stacking-engineered ferroelectricity and multiferroic order in van der Waals magnets
Daniel Bennett, Gabriel MartÃnez-Carracedo, Xu He +4
Two-dimensional (2D) materials that exhibit spontaneous magnetization, polarization or strain (referred to as ferroics) have the potential to revolutionize nanotechnology by enhanc…
The anti-distortive polaron : an alternative mechanism for lattice-mediated charge trapping
Hamideh Hassani, Eric Bousquet, Xu He +2
Polarons can naturally form in materials from the interaction of extra charge carriers with the atomic lattice. Ubiquitous, they are central to various topics and phenomena such as…
Asymmetric dynamical charges in two-dimensional ferroelectrics
Daniel Bennett, Philippe Ghosez
Ferroelectricity is commonly understood in terms of dynamical charges, which represent the dipole moments generated by atomic displacements or the forces induced by electric fields…