Metal insulator transitions in perovskite SrIrO3 thin films

Abstract

Understanding of metal insulator transitions in a strongly correlated system, driven by Anderson localization (disorder) and/or Mott localization (correlation), is a long standing problem in condensed matter physics. The prevailing fundamental question would be how these two mechanisms contrive to accomplish emergent anomalous behaviors. Here, we have grown high quality perovskite SrIrO3 thin films, containing a strong spin orbit coupled 5d element Ir, on various substrates such as GdScO3 (110), DyScO3 (110), SrTiO3 (001), and NdGaO3 (110) with increasing lattice mismatch, in order to carry out a systematic study on the transport properties. We found that metal insulator transitions can be induced in this system; by either reducing thickness (on best lattice matched substrate) or changing degree of lattice strain (by lattice mismatch between film and substrates) of films. Surprisingly these two pathways seek two distinct types of metal insulator transitions; the former falls into disorder driven Anderson type whereas the latter turns out to be of unconventional Mott-Anderson type with the interplay of disorder and correlation. More interestingly, in the metallic phases of SrIrO3, unusual non-Fermi liquid characteristics emerge in resistivity as the resistivity exponent evolves from from 4/5 to 1 to 3/2 with increasing lattice strain. We discuss theoretical implications of these phenomena to shed light on the metal insulator transitions.

Some figures are redrawn, appears in Journal of Applied Physics

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Cited by in corpus (48)

• Symmetry Demanded Topological Nodal-line Materials
• Metal insulator transitions in perovskite SrIrO3 thin films
• Spin-orbit semimetal SrIrO${}_3$ in the two-dimensional limit
• Direct observation of the Dirac nodes lifting in semimetallic perovskite SrIrO3 thin films
• Filling-enforced Magnetic Dirac Semimetals in Two Dimensions
• Strain-induced nonsymmorphic symmetry breaking and removal of Dirac semimetallic nodal line in an orthoperovskite iridate
• Tunable Semimetallic State in Compressive-strained SrIrO3 Films Revealed by Transport Behaviors
• Charge transfer in iridate-manganite superlattices
• Epitaxial growth and thermodynamic stability of SrIrO3/SrTiO3 heterostructures
• Review of Spin Orbit Coupled Semimetal SrIrO3 in thin film form
• Dimensionality-strain phase diagram of strontium iridates
• Balanced electron-hole transport in spin-orbit semimetal SrIrO3 heterostructures
• Growth and engineering of perovskite SrIrO3 thin films
• Synthesis and electronic properties of Ruddlesden-Popper strontium iridate epitaxial thin films stabilized by control of growth kinetics
• Tunable and Enhanced Rashba Spin-Orbit Coupling in Iridate-Manganite Heterostructures
• Novel spin-orbit coupling driven emergent states in iridate-based heterostructures
• Structural properties and anisotropic electronic transport in SrIrO3 films
• Strange semimetal dynamics in SrIrO${}_3$
• Effects of substrate temperature on the unusual non-Fermi liquid metal to insulator transition in perovskite SrIrO3 thin films
• Substrate-tuning of correlated spin-orbit oxides
• Thermoelectric behavior of Ruddlesden-Popper series iridates
• Metal-insulator transition in CaVO${}_3$ thin films: interplay between epitaxial strain, dimensional confinement, and surface effects
• Abrupt Enhancement of Spin-Orbit Scattering Time in Ultrathin Semimetallic SrIrO${}_3$ Close to the Metal-Insulator Transition
• Persistent semi-metal-like nature of epitaxial perovskite CaIrO3 thin films
• Perovskite oxide heterojunction for Rashba-Dresselhaus assisted antiferromagnetic spintronics
• Magnetic properties of bilayer Sr${}_3$Ir${}_2$O${}_7$: role of epitaxial strain and oxygen vacancies
• Low temperature ferromagnetism in perovskite SrIrO${}_3$ films
• Anisotropy and interaction effects of strongly strained SrIrO3 thin films
• Anisotropic linear and nonlinear charge-spin conversion in topological semimetal SrIrO3
• Interface induced exchange bias effect in La${}_{0.67}$Sr${}_{0.33}$MnO${}_3$/SrIrO${}_3$ multilayer
• Electronic and magnetic transitions in perovskite SrRu1-xIrxO3 thin films
• Metal insulator transition and magnetotransport anomalies in perovskite SrIr0.5Ru0.5O3 thin films
• Spin-orbit torque generation in bilayers composed of CoFeB and epitaxial SrIrO${}_3$ grown on an orthorhombic DyScO${}_3$ substrate
• Cooperative effects of lattice and spin-orbit coupling on the electronic structure of orthorhombic SrIrO3
• Suppression of twinning and enhanced electronic anisotropy of SrIrO3 films
• Emergence of non-Fermi liquid behaviors in 5d perovskite SrIrO3 thin films: interplay between correlation, disorder, and spin-orbit coupling
• Metal-Insulator Transitions and non-Fermi Liquid Behaviors in 5d Perovskite Iridates
• Strain-dependent Insulating State and Kondo Effect in Epitaxial SrIrO${}_3$ Films
• Magnetotransport of SrIrO3 films on (110) DyScO3
• Understanding the role of exchange and correlations in complex oxides under strain and oxide heterostructures
• Magnetic interlayer coupling between ferromagnetic SrRuO${}_3$ layers through a SrIrO${}_3$ spacer
• Epitaxial stabilization of Sr3Ir2O7 thin films
• Anomalous pressure dependence of the electronic transport and anisotropy in SrIrO3 films
• Growth facets of SrIrO3 Thin Films and Single Crystals
• Induction of Large Magnetic Anisotropy Energy and Formation of Multiple Dirac States in SrIrO${}_3$ Films: Role of correlation and spin-orbit coupling
• Inducing ferromagnetism by structural engineering in a strongly spin-orbit coupled oxide
• Emergent topological states via digital (001) oxide superlattices
• Epitaxial growth and antiferromagnetism of Sn-substituted perovskite iridate SrIr${}_{0.8}$Sn${}_{0.2}$O${}_3$