Upper limit of spin relaxation in suspended graphene
arXiv:2412.11000 · doi:10.1016/j.carbon.2024.119920
Abstract
We use a combination of molecular dynamics and quantum transport simulations to investigate the upper limit of spin transport in suspended graphene. We find that thermally-induced atomic-scale corrugations are the dominant factor, limiting spin lifetimes to ~10 ns by inducing a strongly-varying local spin-orbit coupling. These extremely short-range corrugations appear even when the height profile appears to be smooth, suggesting they may be present in any graphene device. We discuss our results in the context of experiments, and briefly consider approaches to suppress these short-range corrugations and further enhance spin lifetimes in graphene-based spin devices.
arXiv comment9 pages, 5 figures
References in corpus (42)
- Electric Field Effect in Atomically Thin Carbon Films
- Boron nitride substrates for high-quality graphene electronics
- The structure of suspended graphene sheets
- Electronic spin transport and spin precession in single graphene layers at room temperature
- Atomic Structure of Graphene on SiO2
- Optimized Tersoff and Brenner empirical potential parameters for lattice dynamics and phonon thermal transport in carbon nanotubes and graphene
- The Kernel Polynomial Method
- Semiconductor Spintronics
- Van der Waals heterostructures for spintronics and opto-spintronics
- Highly efficient spin transport in epitaxial graphene on SiC
- Graphene-Based Integrated Photonics For Next-Generation Datacom And Telecom
- Ballistic transport exceeding 28 μm in CVD grown graphene
- Spin-Orbit-Mediated Spin Relaxation in Graphene
- Spin lifetimes exceeding 12 nanoseconds in graphene non-local spin valve devices
- Electron spin relaxation in graphene: the role of the substrate
- Linear scaling between momentum and spin scattering in graphene
- Giant Spin Lifetime Anisotropy in Graphene Induced by Proximity Effects
- Spin relaxation mechanism in graphene: resonant scattering by magnetic impurities
- Spin-orbit coupling in hydrogenated graphene
- Manipulation of Spin Transport in Graphene by Surface Chemical Doping
- Brownian motion at short time scales
- Electrical Detection of Spin Precession in Single Layer Graphene Spin Valves with Transparent Contacts
- Pseudospin-driven spin relaxation mechanism in graphene
- Determination of the spin-lifetime anisotropy in graphene using oblique spin precession
- Linear Scaling Quantum Transport Methodologies
- 24 \textmu m length spin relaxation length in boron nitride encapsulated bilayer graphene
- Spin Dynamics and Relaxation in Graphene Dictated by Electron-hole Puddles
- Electron spin relaxation in graphene with random Rashba field: Comparison of D'yakonov-Perel' and Elliott-Yafet--like mechanisms
- Strong and Tunable Spin Lifetime Anisotropy in Dual-Gated Bilayer Graphene
- Spin dephasing and pumping in graphene due to random spin-orbit interaction
- Effects of Dephasing on Spin Lifetime in Ballistic Spin-Orbit Materials
- Spin precession in anisotropic media
- Spin communication over 30 m long channels of chemical vapor deposited graphene on SiO
- Anisotropic intrinsic spin relaxation in graphene due to flexural distortions
- Nonlocal Spin Dynamics in the Crossover from Diffusive to Ballistic Transport
- Measuring anisotropic spin relaxation in graphene
- Anomalous optical response of graphene on hexagonal boron nitride substrates
- Spin relaxation in corrugated graphene
- Universal spin diffusion length in polycrystalline graphene
- Ultralong 100 ns Spin Relaxation Time in Graphite at Room Temperature
- Modeling the Oblique Spin Precession in Lateral Spin Valves for Accurate Determination of Spin Lifetime Anisotropy: Effect of Finite Contact Resistance and Channel Length
- Simulations on the influence of spatially-varying spin transport parameters on the measured spin lifetime in graphene non-local spin valves