Spin transport in high quality suspended graphene devices

Abstract

We measure spin transport in high mobility suspended graphene (μ~ 10^5 cm^2/Vs), obtaining a (spin) diffusion coefficient of 0.1 m^2/s and giving a lower bound on the spin relaxation time (τ_s ~ 150 ps) and spin relaxation length (λ_s=4.7 μm) for intrinsic graphene. We develop a theoretical model considering the different graphene regions of our devices that explains our experimental data.

22 pages, 6 figures; Nano Letters, Article ASAP (2012) (http://pubs.acs.org/doi/abs/10.1021/nl301050a)

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Cited by in corpus (61)

• Graphene Spintronics
• Long Distance Spin Transport in High Mobility Graphene on Hexagonal Boron Nitride
• Large Proximity-Induced Spin Lifetime Anisotropy in Transition Metal Dichalcogenide/Graphene Heterostructures
• Controlling spin relaxation in hexagonal BN-encapsulated graphene with a transverse electric field
• Spin transport in graphene/transition metal dichalcogenide heterostructures
• Nanosecond spin lifetimes in single- and few-layer graphene-hBN heterostructures at room temperature
• Observation of even denominator fractional quantum Hall effect in suspended bilayer graphene
• Pseudospin-driven spin relaxation mechanism in graphene
• Determination of the spin-lifetime anisotropy in graphene using oblique spin precession
• 24 \textmu m length spin relaxation length in boron nitride encapsulated bilayer graphene
• Contact induced spin relaxation in Hanle spin precession measurements
• Spin Transport in Hydrogenated Graphene
• Role of MgO barriers for spin and charge transport in Co/MgO/graphene non-local spin-valve devices
• Contribution of defects to the spin relaxation in copper nanowires
• Electrical spin injection, transport, and detection in graphene-hexagonal boron nitride van der Waals heterostructures: progress and perspectives
• Heterostructures of graphene and hBN: electronic, spin-orbit, and spin relaxation properties from first principles
• 98% directional guiding of spin currents with 90 micrometer relaxation length in bilayer graphene using carrier drift
• Enhancement of spin relaxation time in hydrogenated graphene spin valve devices
• Localized states influence spin transport in epitaxial graphene
• Temperature dependence of spin polarization in ferromagnetic metals using lateral spin valves
• Spin transport in fully hexagonal boron nitride encapsulated graphene
• Rashba Spin Orbit Interaction and Birefringent Electron Optics in Graphene
• Two-dimensional flexible high diffusive spin circuits
• Large-scale BN tunnel barriers for graphene spintronics
• Spin-orbit coupling assisted by flexural phonons in graphene
• Suppression of contact-induced spin dephasing in graphene/MgO/Co spin-valve devices by successive oxygen treatments
• Electronic Spin Transport in Dual-Gated Bilayer Graphene
• Spin Orbit Interaction and Isotropic Electronic Transport in Graphene
• Uniformity of the pseudomagnetic field in strained graphene
• Spin Hall Effect in Bilayer Graphene Combined with an Insulator up to Room Temperature
• Contact-induced charge contributions to non-local spin transport measurements in Co/MgO/graphene devices
• Spin transport in two-layer-CVD-hBN/graphene/hBN heterostructures
• Annealing-induced magnetic moments detected by spin precession measurements in epitaxial graphene on SiC
• Absence of hyperfine effects in ${}^{13}$C-graphene spin valve devices
• Spintronics with graphene quantum dots
• Tuneable spin injection in high-quality graphene with one-dimensional contacts
• Spin transport in graphene nanostructures
• Robust Spin Interconnect with Isotropic Spin Dynamics in Chemical Vapour Deposited Graphene Layers and Boundaries
• Integrating MBE materials with graphene to induce novel spin-based phenomena
• Spin and charge transport in graphene-based spin transport devices with Co/MgO spin injection and spin detection electrodes
• Microscopic linear response theory of spin relaxation and relativistic transport phenomena in graphene
• Spin Hall and inverse spin galvanic effects in graphene with strong interfacial spin-orbit coupling: a quasi-classical Green's function approach
• Spin relaxation of a diffusively moving carrier in a random hyperfine field
• Ab initio modelling of spin relaxation lengths in disordered graphene nanoribbons†
• Spin Relaxation at Graphene Nanoribbons in the presence of Substrate Surface Roughness
• Spin dependent quantum interference in non-local graphene spin valves
• Weak de-localization in graphene on a ferromagnetic insulating film
• Gate controllable spin pumping in graphene via rotating magnetization
• Effects of interface resistance asymmetry on local and non-local magnetoresistance structures
• Spin Dynamics in Bilayer Graphene : Role of Electron-Hole Puddles and the Dyakonov-Perel Mechanism
• Spin imaging of Poiseuille flow of viscous electronic fluid
• Carrier Drift Control of Spin Currents in Graphene-Based Spin-Current Demultiplexers
• Spin diffusion in ultracold spin-orbit coupled ${}^{40}$K gas
• Nanosecond spin lifetimes in bottom-up fabricated bilayer graphene spin-valves with atomic layer deposited Al${}_2$O${}_3$ spin injection and detection barriers
• Spin injection from a ferromagnet into a semiconductor in the case of a rough interface
• Spin torque transistor revisited
• The shape of the Hanle curve in spin-transport structures in the presence of the ac drive
• Polarization amplification by spin-doping in nanomagnetic/graphene hybrid systems
• A roadmap for the design of four-terminal spin valves and the extraction of spin diffusion length
• Magnetotransport in graphene/Pb0.24Sn0.76Te heterostructures: finding a way to avoid catastrophe
• Manifestation of two-channel nonlocal spin transport in the shapes of the Hanle curves