83 citations · 196 across the 9 of their papers we have counts for
9 papers
Theory of polarization textures in crystal supercells
Daniel Bennett, Wojciech J. Jankowski, Gaurav Chaudhary +2
Recently, topologically nontrivial polarization textures have been predicted and observed in nanoscale systems. While these polarization textures are interesting and promising in t…
Polar meron-antimeron networks in strained and twisted bilayers
Daniel Bennett, Gaurav Chaudhary, Robert-Jan Slager +2
Out-of-plane polar domain structures have recently been discovered in strained and twisted bilayers of inversion symmetry broken systems such as hexagonal boron nitride. Here we sh…
Tunable photostriction of halide perovskites through energy dependent photoexcitation
Bo Peng, Daniel Bennett, Ivona Bravić +1
Halide perovskites exhibit giant photostriction, that is, volume or shape changes upon illumination. However, the microscopic origin of this phenomenon remains unclear and there ar…
Coupling between tilts and charge carriers at polar-nonpolar perovskite interfaces
Daniel Bennett, Pablo Aguado-Puente, Emilio Artacho +1
The phenomenological theory for the polar instability giving rise to a two-dimensional electron gas at perovskite interfaces is hereby extended to include the coupling to perovskit…
Generalized relation between electromechanical responses at fixed voltage and fixed electric field
Daniel Bennett, Daniel Tanner, Philippe Ghosez +2
We present a general relation between the electromechanical couplings of infinitesimal strain and electric field to arbitrary order, measured at fixed voltage and at fixed electric…
Theory of polar domains in moiré heterostructures
Daniel Bennett
The discovery of unconventional ferroelectric behavior in twisted bilayers has prompted the consideration of moiré heterostructures as polar materials. However, misconceptions abou…
Electrically tunable stacking domains and ferroelectricity in moiré superlattices
Daniel Bennett, Benjamin Remez
It is well known that stacking domains form in moiré superlattices due to the competition between the interlayer van der Waals forces and intralayer elastic forces, which can be re…
Flexoelectric radial polarization of single-walled nanotubes from first-principles
Daniel Bennett
Flexoelectricity is the polar response of an insulator to strain gradients such as bending. While the size dependence of this effect makes it weak in bulk systems in comparison to…
Electrostatics and domains in ferroelectric superlattices
Daniel Bennett, Maitane Muñoz-Basagoiti, Emilio Artacho
The electrostatics arising in ferroelectric/dielectric two-dimensional heterostructures and superlatitices is revisited here within a simplest Kittel model, in order to define a cl…