Interface control of emergent ferroic order in Ruddlesden-Popper Sr${}_{n+1}$Ti${}_n$O${}_{3n+1}$

Abstract

We have discovered from first-principles an unusual polar state in the low n Sr${}_{n+1}$Ti${}_n$O${}_{3n+1}$ Ruddlesden-Popper (RP) layered perovskites in which ferroelectricity is nearly degenerate with antiferroelectricity, a relatively rare form of ferroic order. We show that epitaxial strain plays a key role in tuning the "perpendicular coherence length" of the ferroelectric mode, and does not induce ferroelectricity in these low dimensional RP materials as is well known to occur in SrTiO${}_3$. These systems present an opportunity to manipulate the coherence length of a ferroic distortion in a controlled way, without disorder or a free surface.

References in corpus (5)

• Ferroelectricity in ultra-thin perovskite films
• Engineering multiferroism in CaMnO${}_3$
• Frustration of tilts and A-site driven ferroelectricity in KNbO_3-LiNbO_3 alloys
• First-principles study of competing ferroelectric and antiferroelectric instabilities in BaTiO3/BaO superlattices
• Broadband Dielectric Spectroscopy of Ruddlesden-Popper Sr${}_{n+1}$Ti${}_n$O${}_{3n+1}$ ($n$ = 1, 2, 3) Thin Films

Cited by in corpus (12)

• Experimental demonstration of hybrid improper ferroelectricity and presence of abundant charged walls in (Ca,Sr)${}_3$Ti${}_2$O${}_7$ crystals
• Turning ABO${}_3$ antiferroelectrics into ferroelectrics: Design rules for practical rotation-driven ferroelectricity in double perovskites and A${}_3$B${}_2$O${}_7$ Ruddlesden-Popper compounds
• `Ferroelectric' Metals Reexamined: Fundamental Mechanisms and Design Considerations for New Materials
• Charge-order-induced ferroelectricity in LaVO${}_3$/SrVO${}_3$ superlattices
• Suppressing The Ferroelectric Switching Barrier in Hybrid Improper Ferroelectrics
• Free carrier induced ferroelectricity in layered perovskites
• Giant Exchange Bias in the Single-layered Ruddlesden-Popper Perovskite SrLaCo0.5Mn0.5O4
• Emergence of Rashba-/Dresselhaus Effects in Ruddlesden-Popper Halide Perovskites with Octahedral Rotations
• Effects of quantum confinement on excited state properties of SrTiO${}_3$ from ab initio many-body perturbation theory
• Ferroelectricity in [111]-oriented epitaxially strained SrTiO${}_3$ from first principles
• Octahedral Rotation Induced, Antiferroelectric-like Double Hysteresis in Strained Perovskites
• Breaking symmetry to create a parallel-plate varactor dielectric with unparalleled microwave performance