Universal Fabrication of Two-Dimensional Electron Systems in Functional Oxides

Abstract

Two-dimensional electron systems (2DESs) in functional oxides are promising for applications, but their fabrication and use, essentially limited to SrTiO${}_3$-based heterostructures, are hampered by the need of growing complex oxide over-layers thicker than 2~nm using evolved techniques. This work shows that thermal deposition of a monolayer of an elementary reducing agent suffices to create 2DESs in numerous oxides.

Main Text + Supporting Information, 25 pages, 11 figures

References in corpus (6)

• Magnetic effects at the interface between nonmagnetic oxides
• Electric Field Control of the LaAlO${}_3$/SrTiO${}_3$ Interface Ground State
• Control of a two-dimensional electron gas on SrTiO3(111) by atomic oxygen
• Orientational tuning of the Fermi sea of confined electrons at the SrTiO3 (110) and (111) surfaces
• Engineering two-dimensional electron gases at the (001) and (101) surfaces of TiO2 anatase using light
• Nanoscale Electrostatic Control of Oxide Interfaces

Cited by in corpus (13)

• Band Structure and Spin-Orbital Texture of the (111)-KTaO3 Two-Dimensional Electron Gas
• Polarizing oxygen vacancies in insulating metal oxides under high electric field
• Direct visualization of Rashba-split bands and spin/orbital-charge interconversion at KTaO${}_3$ interfaces
• Tuning up or down the critical thickness in LaAlO3/SrTiO3 through in situ deposition of metal overlayers
• Two-dimensional electron system at the magnetically tunable EuO/SrTiO${}_3$ interface
• A switchable two-dimensional electron gas based on ferroelectric Ca:SrTiO${}_3$
• Band-Order Anomaly at the γ-Al2O3/SrTiO3 Interface Drives the Electron-Mobility Boost
• Two-dimensional electron systems in ATiO3 perovskites (A = Ca, Ba, Sr): control of orbital hybridization and order
• Imaging the itinerant-to-localized transmutation of electrons across the metal-to-insulator transition in V${}_2$O${}_3$
• Redox-controlled epitaxy and magnetism of oxide heterointerfaces: EuO/SrTiO${}_3$
• Tunable two-dimensional electron system at the (110) surface of SnO${}_2$
• Quantum interference effects of out-of-plane confinement on two-dimensional electron systems in oxides
• A Laser-ARPES View of the 2D Electron Systems at LaAlO3/SrTiO3 and Al/SrTiO3 Interfaces