12 papers
Harnessing electrostatics through temperature modulations to control ferroelectrics
Cameron A. M. Scott, Xabier Diaz de Cerio, Jorge Ãñiguez-González
Temperature modulations provide an alternative method for dynamically controlling the ferroelectric state. In this paper, we use scale-independent Landau potentials and predictive…
Alternative origins of polarity in compressively strained SrTiO3-RENiO3 capacitors
Evgenios Stylianidis, Panagiotis Koutsogiannis, Alexander Lione +8
Since its original prediction 25 years ago, room-temperature out-of-plane ferroelectricity in compressively strained SrTiO3 remains an ongoing pursuit. In this work, we investigate…
A GPU-based Solver for Polarization Dynamics in Ferroelectric Materials
Ali Hasan, Edoardo Piccolo, Anna Giordano +4
Ferroelectric materials can be used for the development of multiple device concepts combining non-volatility, small dimensions, low-power actuation, and electrical tunability. Such…
Machine learning Landau free energy potentials
Mauro Pulzone, Natalya S. Fedorova, Hugo Aramberri +1
We show how to construct Landau-like free energy potentials using a machine-learning approach. For concreteness, we focus on perovskite oxide PbTiO. We work with a training s…
First principles study of [111]-oriented epitaxially strained Rare-Earth Nickelate NdNiO
Alexander Lione, Jorge Ãñiguez-González, Nicholas C. Bristowe
Density functional theory is used to investigate the effect of biaxial strain on the structural, electronic and magnetic properties of [111]-oriented NdNiO, as a representative…
Guidelines for the optimization of hafnia-based ferroelectrics through superlattice engineering
Johanna van Gent, Binayak Mukherjee, Ewout van der Veer +5
Hafnia-based ferroelectrics are revolutionizing the data storage industry and the field of ferroelectrics, with improved materials and devices being reported monthly. However, full…