Suppressing The Ferroelectric Switching Barrier in Hybrid Improper Ferroelectrics

Abstract

Integration of ferroelectric materials into novel technological applications requires low coercive field materials, and consequently, design strategies to reduce the ferroelectric switching barriers. In this first principles study, we show that biaxial strain, which has a strong effect on the ferroelectric ground states, can also be used to tune the switching barrier of hybrid improper ferroelectric Ruddlesden-Popper oxides. We identify the region of the strain -- tolerance factor phase diagram where this intrinsic barrier is suppressed, and show that it can be explained in relation to strain induced phase transitions to nonpolar phases.

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Cited by in corpus (8)

• Free carrier induced ferroelectricity in layered perovskites
• Impact of Sb degrees of freedom on the charge density wave phase diagram of the kagome metal CsV${}_3$Sb${}_5$
• Anharmonic stabilization of ferrielectricity in CuInP${}_2$Se${}_6$
• Emergence of Rashba-/Dresselhaus Effects in Ruddlesden-Popper Halide Perovskites with Octahedral Rotations
• Piezoresistivity as a Fingerprint of Ferroaxial Transitions
• Noncollinear Magnetic Multipoles in Collinear Altermagnets
• Evaluating the transport properties of interface-type, analog memristors
• Intervention Strategies for Polarization Switching in Hybrid Improper Ferroelectrics