Towards wafer scale fabrication of graphene based spin valve devices

Abstract

We demonstrate injection, transport and detection of spins in spin valve arrays patterned in both copper based chemical vapor deposition (Cu-CVD) synthesized wafer scale single layer (SLG) and bilayer graphene (BLG). We observe spin relaxation times comparable to those reported for exfoliated graphene samples demonstrating that CVD specific structural differences such as nano-ripples and grain boundaries do not limit spin transport in the present samples. Our observations make Cu-CVD graphene a promising material of choice for large scale spintronic applications.

23 pages, 7 figures

References in corpus (13)

• Electric Field Effect in Atomically Thin Carbon Films
• Ultrahigh electron mobility in suspended graphene
• Spin qubits in graphene quantum dots
• Measurement of Scattering Rate and Minimum Conductivity in Graphene
• Spin-orbit coupling in curved graphene, fullerenes, nanotubes, and nanotube caps
• Graphene films with large domain size by a two-step chemical vapor deposition process
• Coupling of Spin and Orbital Motion of Electrons in Carbon Nanotubes
• Tunneling Spin Injection into Single Layer Graphene (Supplementary Information)
• Tunneling Spin Injection into Single Layer Graphene
• Wafer Scale Homogeneous Bilayer Graphene Films by Chemical Vapor Deposition
• Charge-density depinning at metal contacts of graphene field-effect transistors
• Transport properties of graphene with one-dimensional charge defects
• Electric-Field-control of spin rotation in bilayer graphene

Cited by in corpus (71)

• Graphene Spintronics
• Spin-Orbit Proximity Effect in Graphene
• Colloquium: Spintronics in graphene and other two-dimensional materials
• Spin lifetimes exceeding 12 nanoseconds in graphene non-local spin valve devices
• The role of contact resistance in graphene field-effect devices
• Long Distance Spin Transport in High Mobility Graphene on Hexagonal Boron Nitride
• Spin relaxation mechanism in graphene: resonant scattering by magnetic impurities
• Spin transport in graphene/transition metal dichalcogenide heterostructures
• Model spin-orbit coupling Hamiltonians for graphene systems
• Nanosecond spin lifetimes in single- and few-layer graphene-hBN heterostructures at room temperature
• Spin transport in high quality suspended graphene devices
• Spin Transport and Relaxation in Graphene
• Quasi-Periodic Nanoripples in Graphene Grown by Chemical Vapor Deposition and Its Impact on Charge Transport
• Ultrasensitive Field-Effect Biosensors Enabled by the Unique Electronic Properties of Graphene
• Spintronics with graphene
• Long spin relaxation times in wafer scale epitaxial graphene on SiC(0001)
• Spin Hall effect and Weak Antilocalization in Graphene/Transition Metal Dichalcogenide Heterostructures
• Extrinsic spin Hall effect induced by resonant skew scattering in graphene
• Pseudospin-driven spin relaxation mechanism in graphene
• Electrical spin injection into graphene through monolayer hexagonal boron nitride
• Optospintronics in graphene via proximity coupling
• Spin Dynamics and Relaxation in Graphene Dictated by Electron-hole Puddles
• Role of MgO barriers for spin and charge transport in Co/MgO/graphene non-local spin-valve devices
• Dynamically-generated pure spin current in single-layer graphene
• Electrical spin injection, transport, and detection in graphene-hexagonal boron nitride van der Waals heterostructures: progress and perspectives
• Observation of spin-valley coupling induced large spin lifetime anisotropy in bilayer graphene
• Effects of Dephasing on Spin Lifetime in Ballistic Spin-Orbit Materials
• Localized states influence spin transport in epitaxial graphene
• Spin Relaxation in Single Layer Graphene with Tunable Mobility
• Large room temperature spin-to-charge conversion signals in a few-layer graphene/Pt lateral heterostructure
• Non-linear spin Seebeck effect due to spin-charge interaction in graphene
• Two-dimensional flexible high diffusive spin circuits
• Single-Material Graphene Thermocouples
• Large-scale BN tunnel barriers for graphene spintronics
• Dynamic Spin Injection into Chemical Vapor Deposited Graphene
• Two-Dimensional Spintronic Circuit Architectures on Large Scale Graphene
• Spin communication over 30 $\mu$m long channels of chemical vapor deposited graphene on SiO${}_2$
• Electronic Spin Transport in Dual-Gated Bilayer Graphene
• Scanning Tunneling Microscopy and Spectroscopy of Graphene on Insulating Substrates
• Anisotropic intrinsic spin relaxation in graphene due to flexural distortions
• Resonant scattering by magnetic impurities as a model for spin relaxation in bilayer graphene
• Direct Mapping of Local Seebeck Coefficient in 2D Material Nanostructures via Scanning Thermal Gate Microscopy
• Localization behavior of Dirac particles in disordered graphene superlattices
• Absence of hyperfine effects in ${}^{13}$C-graphene spin valve devices
• Scale-invariant large nonlocality in polycrystalline graphene
• Theory of spin-orbit induced spin relaxation in functionalized graphene
• Large-scale transfer and characterization of macroscopic periodically nano-rippled graphene
• Ultralong spin lifetime in light alkali atom doped graphene
• Dry-transferred CVD graphene for inverted spin valve devices
• Dynamical spin injection at a quasi-one-dimensional ferromagnet-graphene interface
• Influence of impurity spin dynamics on quantum transport in epitaxial graphene
• Robust Spin Interconnect with Isotropic Spin Dynamics in Chemical Vapour Deposited Graphene Layers and Boundaries
• Spin and charge transport in graphene-based spin transport devices with Co/MgO spin injection and spin detection electrodes
• Electron spin relaxation in bilayer graphene
• Electric fields and substrates dramatically accelerate spin relaxation in graphene
• Temperature and electric field dependence of spin relaxation in graphene on SrTiO${}_3$
• Electron spin relaxation in rippled graphene with low mobilities
• Path of the current flow at the metal contacts of graphene field-effect transistors with distorted transfer characteristics
• Impurity scattering and size quantization effects in a single graphene nanoflake
• Spin Relaxation at Graphene Nanoribbons in the presence of Substrate Surface Roughness
• Ab initio modelling of spin relaxation lengths in disordered graphene nanoribbons†
• Simulations on the influence of spatially-varying spin transport parameters on the measured spin lifetime in graphene non-local spin valves
• Spin Dynamics in Bilayer Graphene : Role of Electron-Hole Puddles and the Dyakonov-Perel Mechanism
• Growth and Characterisation Studies of Eu${}_3$O${}_4$ Thin Films Grown on Si/SiO${}_2$ and Graphene
• Anomalous D'yakonov-Perel' spin relaxation in semiconductor quantum wells under strong magnetic field in Voigt configuration
• Nanosecond spin lifetimes in bottom-up fabricated bilayer graphene spin-valves with atomic layer deposited Al${}_2$O${}_3$ spin injection and detection barriers
• Impact of tunnel barrier strength on magnetoresistance in carbon nanotubes
• Breakdown of the Hebel-Slichter effect in superconducting graphene due to the emergence of Yu-Shiba-Rusinov states at magnetic resonant scatterers
• Carrier Drift Control of Spin Currents in Graphene-Based Spin-Current Demultiplexers
• Gate-Tunable Spin Transport and Giant Electroresistance in Ferromagnetic Graphene Vertical Heterostructures
• Spin Relaxation in Weak Localization Regime in Multilayer Graphene Spin Valves