Tunable Magnetism and Insulator-Metal Transition in Bilayer Perovskites

Abstract

Two-dimensional (2D) transition-metal oxide perovskites greatly expand the field of available 2D multifunctional material systems. Here, based on density functional theory calculations, we predicted the presence of ferromagnetism orders accompanying with an insulator-metal phase transition in bilayer $KNb{O}_3$ and $KTa{O}_3$ by applying strain engineering and/or external electric field. Our results will contribute to the applications of few-layer transition metal oxide perovskites in the emerging spintronics and straintronics.

arXiv commentJ. Phys. Chem. C 2021

References in corpus (7)

• Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
• 2D materials and van der Waals heterostructures
• A tight-binding approach to uniaxial strain in graphene
• Subband structure of a two-dimensional electron gas formed at the polar surface of the strong spin-orbit perovskite KTaO${}_3$
• Chemical Potential and Quantum Hall Ferromagnetism in Bilayer Graphene
• Predicting the Structural, Electronic and Magnetic Properties of Few Atomic-layer Polar Perovskite
• Strain-driven sign interchange of surface two-dimensional electron and hole gases in KTaO3 thin film

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