Visualizing quantum phenomena at complex oxide interfaces: an atomic view from scanning transmission electron microscopy

Abstract

Complex oxide interfaces have been one of the central focuses in condensed matter physics and material science. Over the past decade, aberration corrected scanning transmission electron microscopy and spectroscopy has proven to be invaluable to visualize and understand the emerging quantum phenomena at an interface. In this paper, we briefly review some recent progress in the utilization of electron microscopy to probe interfaces. Specifically, we discuss several important challenges for electron microscopy to advance our understanding on interface phenomena, from the perspective of variable temperature, magnetism, electron energy loss spectroscopy analysis, electronic symmetry, and defects probing.

arXiv comment45 pages, 7 figures

References in corpus (29)

• Magnetic effects at the interface between nonmagnetic oxides
• Why Some Interfaces Cannot be Sharp
• Superconductivity in single-layer films of FeSe with a transition temperature above 100 K
• Interface-Induced Phenomena in Magnetism
• Direct imaging of the coexistence of ferromagnetism and superconductivity at the LaAlO3/SrTiO3 interface
• Multiferroic materials and magnetoelectric physics: symmetry, entanglement, excitation, and topology
• Interface-driven topological Hall effect in SrRuO${}_3$-SrIrO${}_3$ bilayer
• Critical thickness and orbital ordering in ultrathin La0.7Sr0.3MnO3 films
• Misfit Strain Accommodation in Epitaxial ABO3 Perovskites: Lattice Rotations and Lattice Modulations
• Photoferroelectric oxides
• Orbital reconstruction and two-dimensional electron gas at the LaAlO3/SrTiO3 interface
• Profiling the interface electron gas of LaAlO3/SrTiO3 heterostructures by hard X-ray photoelectron spectroscopy
• LaAlO3 stoichiometry found key to electron liquid formation at LaAlO3/SrTiO3 interfaces
• Critical thickness for itinerant ferromagnetism in ultrathin films of SrRuO${}_3$
• Hybridization-controlled charge transfer and induced magnetism at correlated oxide interfaces
• Polarity-induced oxygen vacancies at LaAlO3|SrTiO3 interfaces
• Competition and cooperation between antiferrodistortive and ferroelectric instabilities in SrTiO${}_3$
• Tunneling Electroresistance Induced by Interfacial Phase Transitions in Ultrathin Oxide Heterostructures
• Commensurate Stripes and Phase Coherence in Manganites Revealed with Cryogenic Scanning Transmission Electron Microscopy
• Engineered Mott ground state in LaTiO${}_{3+\delta }$/LaNiO${}_3$ heterostructure
• Artificial two-dimensional polar metal at room temperature
• Polar catastrophe in ultra-thin limit: A case of rare-earth perovskite LaNiO3
• Microscopic model for the ferroelectric field effect in oxide heterostructures
• Exploiting symmetry-mismatch to control magnetism in a ferroelastic heterostructure
• Role of disorder and correlations in metal-insulator transition in ultrathin SrVO3 films
• A New Line Defect in NdTiO3 Perovskite
• Growth diagram of La0.7Sr0.3MnO3 thin films using pulsed laser deposition
• Emergent c-axis magnetic helix in manganite-nickelate superlattices
• Surface and Interface Properties of La2/3Sr1/3MnO3 Thin Films on SrTiO3 (001)

Cited by in corpus (2)

• Manipulation of magnetic domain wall by ferroelectric switching: Dynamic magnetoelectricity at the nanoscale
• Order-Disorder Behavior at Thin Film Oxide Interfaces