Charge transfer driven emergent phenomena in oxide heterostructures

Abstract

Complex oxides exhibit many intriguing phenomena, including metal-insulator transition, ferroelectricity/multiferroicity, colossal magnetoresistance and high transition temperature superconductivity. Advances in epitaxial thin film growth techniques enable us to combine different complex oxides with atomic precision and form an oxide heterostructure. Recent theoretical and experimental work has shown that charge transfer across oxide interfaces generally occurs and leads to a great diversity of emergent interfacial properties which are not exhibited by bulk constituents. In this report, we review mechanisms and physical consequence of charge transfer across interfaces in oxide heterostructures. Both theoretical proposals and experimental measurements of various oxide heterostructures are discussed and compared. We also review the theoretical methods that are used to calculate charge transfer across oxide interfaces and discuss the success and challenges in theory. Finally, we present a summary and perspectives for future research.

45 pages, 17 figures and 1 table. An invited review paper. Due to space limit, we apologize to those whose work is not included

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Cited by in corpus (19)

• Similarities and differences between nickelate and cuprate films grown on a SrTiO${}_3$ substrate
• Stabilization of three-dimensional charge order in YBa${}_2$Cu${}_3$O${}_{6+x}$ via epitaxial growth
• Confinement- and strain-induced enhancement of thermoelectric properties in LaNiO${}_3$/LaAlO${}_3(001)$ superlattices
• Digital modulation of the nickel valence state in a cuprate-nickelate heterostructure
• Cation Order Control of Correlations in Double Perovskite Sr${}_2$VNbO${}_6$
• Engineered Kondo screening and nonzero Berry phase in SrTiO3/LaTiO3/SrTiO3 heterostructures
• Origin of the different electronic structure of Rh- and Ru-doped Sr2IrO4
• Persistent half-metallic ferromagnetism in a (111)-oriented manganite superlattice
• Irreversible multi-band effects and Lifshitz transitions at the LaAlO3/SrTiO3 interface under field effect
• Observation of Mermin-Wagner behavior in LaFeO${}_3$/SrTiO${}_3$ superlattices
• Lateral modulation of magnetic anisotropy in tricolor 3d-5d oxide superlattices
• Charge transfer in LaVO${}_3$/LaTiO${}_3$ multilayers: strain-controlled dimensionality of interface metallicity between two Mott insulators
• Interplay between electron correlations, magnetic state, and structural confinement in LaNiO3 ultrathin films
• Emergent half-metal with mixed structural order in (111)-oriented (LaMnO${}_3$)${}_{2n}$|(SrMnO${}_3$)${}_n$ superlattices
• Emergent topological states via digital (001) oxide superlattices
• Hard x-ray standing-wave photoemission study of the interfaces in a BiFeO${}_3$/La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ superlattice
• Interfacial and thickness effects in La${}_{2/3}$Sr${}_{1/3}$MnO${}_3$/YBa${}_2$Cu${}_3$O${}_7$ superlattices
• From Slater to Mott physics: epitaxial engineering of electronic correlations in oxide interfaces
• Interlayer charge transfer from contact electrification in conducting micro and nanoscale thin film heterostructures