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Controlling ferroelectric hysteresis offsets in PbTiO based superlattices
Simon Divilov, Hsiang-Chun Hsing, Mohammed Humed Yusuf +9
Ferroelectric materials are characterized by degenerate ground states with multiple polarization directions. In a ferroelectric capacitor this should manifest as equally favourable…
Berry Flux Diagonalization: Application to Electric Polarization
John Bonini, David Vanderbilt, Karin M. Rabe
The switching polarization of a ferroelectric is a characterization of the current that flows due to changes in polarization when the system is switched between two states. Computa…
First-Principles Bulk-Layer Model for Dielectric and Piezoelectric Responses in Superlattices
J. Bonini, J. W. Bennett, P. Chandra +1
In the first-principles bulk-layer model the superlattice structure and polarization are determined by first-principles computation of the bulk responses of the constituents to the…