Emergent topological phenomena in thin films of pyrochlore iridates

Abstract

Two quintessential ingredients governing the topological invariant of a system are the dimensionality and the symmetry of the system. Due to the recent development of thin film and artificial superstructure growth technique, it is possible to control the dimensionality of the system, smoothly between the two-dimensions (2D) and three-dimensions (3D). In this work we unveil the dimensional crossover of emergent topological phenomena in correlated topological materials. In particular, by focusing on the thin film of pyrochlore iridate antiferromagnets grown along the [111] direction, we demonstrate that it can show giant anomalous Hall conductance, which is proportional to the thickness of the film, even though there is no Hall effect in 3D bulk material. In addition, we uncover the emergence of a new topological phase, whose nontrivial topological properties are hidden in the bulk insulator but manifest only in thin films. This shows that the thin film of topological materials is a new platform to search for unexplored novel topological phenomena.

arXiv comment34 pages, 9 figures, 1 table

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Cited by in corpus (53)

• New Perspectives for Rashba Spin-Orbit Coupling
• Spin-Orbit Physics Giving Rise to Novel Phases in Correlated Systems: Iridates and Related Materials
• Engineering spin-orbital magnetic insulator by tailoring superlattices
• The Challenge of Spin-Orbit-Tuned Ground States in Iridates
• Recent progress on correlated electron systems with strong spin-orbit coupling
• Are the double Fermi arcs of Dirac semimetals topologically protected?
• Spin-orbit-entangled electronic phases in 4$d$ and 5$d$ transition-metal compounds
• Superconductivity in three-dimensional spin-orbit coupled semimetals
• Theory of Kerr and Faraday rotations and linear dichroism in Topological Weyl Semimetals
• Metal-insulator transition and topological properties of pyrochlore iridates
• Magnetic field-induced insulator-semimetal transition in a pyrochlore Nd2Ir2O7
• Slater to Mott crossover in the metal to insulator transition of Nd2Ir2O7
• Topology and Interactions in a Frustrated Slab: Tuning from Weyl Semimetals to C > 1 Fractional Chern Insulators
• Giant anomalous Hall effect in quasi-two-dimensional layered antiferromagnet Co${}_{1/3}$NbS${}_2$
• Topological Magnon Bands and Unconventional Superconductivity in Pyrochlore Iridate Thin Films
• Competing orders and topology in the global phase diagram of pyrochlore iridates
• Weyl Mott Insulator
• Pressure and magnetic-field effects on metal-insulator transitions of bulk and domain-wall states in pyrochlore iridates
• Weyl semimetal from spontaneous inversion symmetry breaking in pyrochlore oxides
• Topological magnons with nodal-line and triple-point degeneracies: Implications for thermal Hall effect in pyrochlore iridates
• Orbital Hall effect and orbital edge states caused by s electrons
• A magnetic Weyl semimetallic phase in thin films of Eu${}_2$Ir${}_2$O${}_7$
• Epitaxial thin films of pyrochlore iridate Bi_{2+x}Ir_{2-y}O_{7-delta}: structure, defects and transport properties
• Balanced electron-hole transport in spin-orbit semimetal SrIrO3 heterostructures
• Unconventional anomalous Hall effect from antiferromagnetic domain walls of Nd2Ir2O7 thin films
• Perspective: Strongly correlated and topological states in [111] grown transition metal oxide thin films and heterostructures
• All-in-all-out magnetic domain wall conduction in pyrochlore iridate heterointerface
• Spin Ice Thin Film: Surface Ordering, Partial Magnetic Wetting and Emergent Square Ice
• Transition-Metal Oxide (111) bilayers
• Correlation effects in pyrochlore iridate thin films grown along the $[111]$ direction
• Heavy-mass magnetic modes in pyrochlore iridates due to dominant Dzyaloshinskii-Moriya interaction
• Strain-induced pseudomagnetic field and quantum oscillations in kagome crystals
• Geometrical lattice engineering of complex oxide heterostructures: a designer approach to emergent quantum states
• Modulated Helical Metals at Magnetic Domain Walls of Pyrochlore Iridium Oxides
• Interacting spin-3/2 fermions in a Luttinger semimetal: Competing phases and their selection in the global phase diagram
• Theory of Multifarious Quantum Phases and Large Anomalous Hall effect in Pyrochlore Iridate Thin Films
• Nonlinear Magnetoelectric Effect under Magnetic Octupole Order: Its Application to a $d$-Wave Altermagnet and a Pyrochlore Lattice with All-In/All-Out Magnetic Order
• Topological Phases in Oxide Heterostructures with Light and Heavy Transition Metal Ions
• First-principles studies of spin-orbital physics in pyrochlore oxides
• Domain wall skew scattering in ferromagnetic Weyl metals
• Competing magnetic orders and multipolar Weyl fermions in 227 pyrochlore iridates
• Suppression of long range magnetic ordering and electrical conduction in Y${}_{1.7}$Bi${}_{0.3}$Ir${}_2$O${}_7$ thin film
• Spectral singularities and tunable slab lasers with 2D material coating
• Possible Scale Invariant Linear Magnetoresistance in Pyrochlore Iridates Bi${}_2$Ir${}_2$O${}_7$
• Phononic drumhead surface state in distorted kagome compound RhPb
• Selective probing of magnetic order on Tb and Ir sites in stuffed Tb${}_{2+x}$Ir${}_{2-x}$O${}_{7-y}$ using resonant X-ray scattering
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• Triply degenerate nodal lines in topological and non-topological metals
• Floquet states in (LaNiO${}_3$)${}_2$/(LaAlO${}_3$)${}_N$ heterostructures grown along the (111) direction
• Electron quasi-itinerancy intertwined with quantum order by disorder in pyrochlore iridate magnetism
• Topological Crystalline Metal in Orthorhombic Perovskite Iridates
• First Principles Prediction of Topological Phases in Thin Films of Pyrochlore Iridates
• Interfacial Line Energy of a Topological Phase