Chiral charge pumping in graphene deposited on a magnetic insulator
arXiv:1609.01613 · doi:10.1103/PhysRevB.95.024408
Abstract
We demonstrate that a sizable chiral charge pumping can be achieved at room temperature in graphene/Yttrium Iron Garnet (YIG) bilayer systems. The effect, which cannot be attributed to the ordinary spin pumping, reveals itself in the creation of a dc electric field/voltage in graphene as a response to the dynamic magnetic excitations (spin waves) in an adjacent out-of-plane magnetized YIG film. We show that the induced voltage changes its sign when the orientation of the static magnetization is reversed, clearly indicating the broken spatial inversion symmetry in the studied system. The strength of effect shows a non-monotonous dependence on the spin-wave frequency, in agreement with the proposed theoretical model.
arXiv comment8 pages, 5 figures
References in corpus (18)
- Electric Field Effect in Atomically Thin Carbon Films
- The electronic properties of graphene
- Atomically thin MoS2: A new direct-gap semiconductor
- Large-Area Synthesis of High-Quality and Uniform Graphene Films on Copper Foils
- 30 inch Roll-Based Production of High-Quality Graphene Films for Flexible Transparent Electrodes
- Basic obstacle for electrical spin-injection from a ferromagnetic metal into a diffusive semiconductor
- Enhanced Gilbert Damping in Thin Ferromagnetic Films
- Quantifying spin Hall angles from spin pumping: Experiments and Theory
- Spin battery operated by ferromagnetic resonance
- Dynamic exchange coupling in magnetic bilayers
- Electrical detection of spin pumping due to the precessing magnetization of a single ferromagnet
- Electronic control of the spin-wave damping in a magnetic insulator
- Proximity induced room-temperature ferromagnetism in graphene probed with spin currents
- Electron Transport Driven by Nonequilibrium Magnetic Textures
- Spin pumping by a field-driven domain wall
- Dynamically-generated pure spin current in single-layer graphene
- Spin-orbit coupling assisted by flexural phonons in graphene
- Dynamical spin injection at a quasi-one-dimensional ferromagnet-graphene interface
Cited by in corpus (11)
- Tailoring magnetic insulator proximity effects in graphene: First-principles calculations
- Direct detection of induced magnetic moment and efficient spin-to-charge conversion in graphene/ferromagnetic structures
- Effective Interactions in a Graphene Layer Induced by the Proximity to a Ferromagnet
- Time-dependent Landauer-Büttiker approach to charge pumping in AC-driven graphene nanoribbons
- Magnon-driven chiral charge and spin pumping and electron-magnon scattering from time-dependent quantum transport combined with atomistic spin dynamics theory
- Unveiling multiferroic proximity effect in graphene
- Magnetic proximity effect at the interface of two-dimensional materials and magnetic oxide insulators
- Terahertz response of gadolinium gallium garnet (GGG) and gadolinium scandium gallium garnet (SGGG)
- Annihilation of topological solitons in magnetism with spin wave burst finale: The role of nonequilibrium electrons causing nonlocal damping and spin pumping over ultrabroadband frequency range
- Electric-field-induced extremely large change in resistance in graphene ferromagnets
- Bias dependent spin injection into graphene on YIG through bilayer hBN tunnel barriers