Giant Inverse Rashba-Edelstein Effect: Application to Monolayer OsBi${}_2$

Abstract

We propose that the hybridization between two sets of Rashba bands can lead to an unconventional topology where the two Fermi circles from different bands own in-plane helical spin textures with the same chiralities, and possess group velocities with the same directions. Under the weak spin injection, the two Fermi circles both give the positive contributions to the spin-to-charge conversion and thus induce the giant inverse Rashba-Edelstein Effect with large conversion efficiency, which is very different from the conventional Rashba-Edelstein Effect. More importantly, through the first-principles calculations, we predict that monolayer OsBi2 could be a good candidate to realize the giant inverse Rashba-Edelstein Effect. Our studies not only demonstrate a new mechanism to achieve highly efficient spin-to-charge conversion in spintronics, but also provide a promising material to realize it.

6 pages, 4 figures

References in corpus (8)

• Topological Insulators with Inversion Symmetry
• Distribution of phonon lifetime in Brillouin zone
• Highly efficient and tuneable spin-to-charge conversion through Rashba coupling at oxide interfaces
• Controlling many-body states by the electric-field effect in a two-dimensional material
• Emergent quantum confinement at topological insulator surfaces
• Rashba-Edelstein Magnetoresistance in Metallic Heterostructure
• Optimal charge-to-spin conversion in graphene on transition metal dichalcogenides
• Hexagonal warping on spin texture, Hall conductivity and circular dichroism of Topological Insulator

Cited by in corpus (7)

• A generic model with unconventional Rashba bands and giant spin galvanic effect
• Electric field induced second-order anomalous Hall transport in unconventional Rashba systems
• Visualization of Unconventional Rashba Band and Vortex Zero Mode in Topopogical Superconductor Candidate AuSn${}_4$
• Charge-Spin Conversion in Two-Subband Quantum Wells with Conventional and Unconventional Rashba Spin-Orbit Coupling
• Inductive detection of inverse spin-orbit torques in magnetic heterostructures
• Magnetotransport properties of an unconventional Rashba spin-orbit coupled two-dimensional electronic system
• An Unusual Dresselhaus Spin-Orbit Contribution of Even Order in Momentum