Rashba induced magnetoconductance oscillations in the LaAlO3-SrTiO3 heterostructure

Abstract

We report measurements of the normal state in-plane magnetoconductance in gated LaAlO${}_3$-SrTiO${}_3$ samples. As the orientation of the magnetic field changes within the plane of the interface, the signal displays periodic oscillations with respect to the angle between the field and the direction of the current. We show that in the underdoped to optimally doped range, a Fermi surface reconstruction takes place due to the Rashba spin-orbit term and that the oscillations are due to a magnetic field induced opening and closing of a gap at the $\Gamma$ point for those Ti out-of-plane orbitals having their band minimum close to the Fermi energy of the system.

arXiv comment5 pages, 4 figures

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• Graphene field-effect-transistors with high on/off current ratio and large transport band gap at room temperature
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• Towards two-dimensional metallic behavior at LaAlO3/SrTiO3 interfaces
• Anisotropic magneto-transport effects at SrTiO3\LaAlO3 interfaces
• Multiple conducting carriers generated in LaAlO3/SrTiO3 heterostructures
• Spin-orbit induced anisotropy in the magnetoconductance of two-dimensional metals

Cited by in corpus (52)

• Manipulation of the large Rashba spin splitting in polar two-dimensional transition metal dichalcogenides
• Theory of spin-orbit coupling at LaAlO3/SrTiO3 interfaces and SrTiO3 surfaces
• Physics of SrTiO${}_3$-based heterostructures and nanostructures: a review
• Locally enhanced conductivity due to the tetragonal domain structure in LaAlO${}_3$/SrTiO${}_3$ heterointerfaces
• Ferroelectric Rashba Semiconductors as a novel class of multifunctional materials
• Ferromagnetic exchange, spin-orbit coupling and spiral magnetism at the LaAlO_3/SrTiO_3 interface
• Quasiparticle dynamics and spin-orbital texture of the SrTiO3 two-dimensional electron gas
• Theory of t2g electron-gas Rashba interactions
• Local Electrostatic Imaging of Striped Domain Order in LaAlO3/SrTiO3
• Nanoscale Phenomena in Oxide Heterostructures
• A Gate-tunable Polarized Phase of Two-Dimensional Electrons at the LaAlO3/SrTiO3 Interface
• Topological superconductivity and unconventional pairing in oxide interfaces
• Control of a two-dimensional electron gas on SrTiO3(111) by atomic oxygen
• Origin and Transport Signatures of Spin-Orbit Interactions in One- and Two-Dimensional SrTiO${}_3$-Based Heterostructures
• Giant negative magnetoresistance driven by spin-orbit coupling at the LAO/STO interface
• Six-fold crystalline anisotropic magnetoresistance in the (111) LaAlO${}_3$/SrTiO${}_3$ oxide interface
• Giant Oscillating Thermopower at Oxide Interfaces
• Strong evidence for d-electron spin transport at room temperature at a LaAlO3/SrTiO3 interface
• Current-driven spin orbit field in LaAlO3/SrTiO3 heterostructures
• Weak-localization and spin-orbit interaction in side-gate field effect devices at the LaAlO${}_3$/SrTiO${}_3$ interface
• Magnetic and Superconducting Ordering at LaAlO3/SrTiO3 Interfaces
• Spirals and skyrmions in two dimensional oxide heterostructures
• Large modulation of the Shubnikov-de Haas oscillations by the Rashba interaction at the LaAlO${}_3$/SrTiO${}_3$ interface
• Competition between electron pairing and phase coherence in superconducting interfaces
• Phase diagrams of voltage-gated oxide interfaces with strong Rashba coupling
• Route to Topological Superconductivity via Magnetic Field Rotation
• Superconductivity with Rashba Spin-Orbit Coupling and Magnetic Field
• Magneto-transport study of top- and back-gated LaAlO${}_3$/SrTiO${}_3$ heterostructures
• Mechanism, time-reversal symmetry and topology of superconductivity in noncentrosymmetric systems
• Anomalous Transport in Sketched Nanostructures at the LaAlO3/SrTiO3 Interface
• Pair breaking in multi-orbital superconductors: an application to oxide interfaces
• High field magneto-transport in two-dimensional electron gas LaAlO3/SrTiO3
• Multi-band theory of superconductivity at the LaAlO${}_3$/SrTiO${}_3$ interface
• Two-Dimensional Large Gap Topological Insulators with Large Rashba Spin-Orbit Coupling in Group-IV films
• From low-field Sondheimer oscillations to high-field very large and linear magnetoresistance in a SrTiO${}_3$-based two-dimensional electron gas
• Interfacial Rashba magnetoresistance of two-dimensional electron gas at LaAlO${}_3$/SrTiO${}_3$ interface
• Intrinsic spin Hall effect in systems with striped spin-orbit coupling
• Semiclassical theory of anisotropic transport at LaAlO3/SrTiO3 interfaces under in-plane magnetic field
• Anisotropic electronic transport of the two-dimensional electron system in Al2O3/SrTiO3 heterostructures
• Theoretical models of Rashba spin splitting in asymmetric SrTiO3-based heterostructures
• Tunable spin and orbital polarization in SrTiO3-based heterostructures
• Subband structure of two-dimensional electron gases in SrTiO3
• Observation of transient superconductivity at the LaAlO${}_3$/SrTiO${}_3$ interface
• Anomalous transport near the Lifshitz transition at the LaAlO${}_3$/SrTiO${}_3$ interface
• Majorana zero modes by engineering topological kink states in two dimensional electron gas
• Quantum oscillations in an optically-illuminated two-dimensional electron system at the LaAlO${}_3$/SrTiO${}_3$ interface
• Electronic transport in sub-micrometric channels at the LaAlO${}_3$/SrTiO${}_3$ interface
• Optical conductivity of the $t_{2g}$ two-dimensional electron gas
• Semiclassical spin transport in LaO/STO system in the presence of multiple Rashba spin orbit couplings
• Anisotropic electronic transport and Rashba effect of the two-dimensional electron system in (110) SrTiO${}_3$-based heterostructures
• Strong spin-orbit coupling and magnetism in (111) (La${}_{0.3}$Sr${}_{0.7}$)(Al${}_{0.65}$Ta${}_{0.35})$/SrTiO${}_3$
• Polarity-tunable magnetic tunnel junctions based on ferromagnetism at oxide heterointerfaces