Determining the spin Hall conductance via charge transport

Abstract

We propose a scheme where transport measurements of charge current and its noise can be used to determine the spin Hall conductance in a four-terminal setup. Starting from the scattering formalism we express the spin current and spin Hall conductance in terms of spin-dependent transmission coefficients. These coefficients are then expressed in terms of charge current and noise. We use the scheme to characterize the spin injection efficiency of a ferromagnetic/semiconductor interface.

Revtex4, 4 pages and two eps figures

References in corpus (12)

• Dissipationless Quantum Spin Current at Room Temperature
• Experimental observation of the spin-Hall effect in a two dimensional spin-orbit coupled semiconductor system
• Spin current and polarization in impure 2D electron systems with spin-orbit coupling
• Spin-Hall effect in a disordered 2D electron-system
• Spin-Hall conductivity due to Rashba spin-orbit interaction in disordered systems
• Spin-Hall Effect in Two-Dimensional Electron Systems with Rashba Spin-Orbit Coupling and Disorder
• Manifestation of the spin-Hall effect through transport measurements in the mesoscopic regime
• Dissipation effects in spin-Hall transport of electrons and holes
• Mesoscopic Spin Hall Effect in Multiprobe Ballistic Spin-Orbit Coupled Semiconductor Bridges
• Spin susceptibilities, spin densities and their connection to spin-currents
• Spin resolved Hall effect driven by spin-orbit coupling
• Spin-Flip Noise in a Multi-Terminal Spin-Valve

Cited by in corpus (12)

• Current-Induced Polarization and the Spin Hall Effect at Room Temperature
• Imaging mesoscopic spin Hall flow: Spatial distribution of local spin currents and spin densities in and out of multiterminal spin-orbit coupled semiconductor nanostructures
• Spin Hall Effect
• Double quantum dot as detector of spin bias
• Spin Hall effect in clean two dimensional electron gases with Rashba spin-orbit coupling
• Measuring Spin Accumulations with Current Noise
• Electrical probing of the spin conductance of mesoscopic cavities
• Magnetic breakdown of cyclotron orbits in systems with Rashba and Dresselhaus spin-orbit coupling
• What can we learn about the dynamics of transported spins by measuring shot noise in spin-orbit-coupled nanostructures?
• Landauer-Büttiker Study of the Anomalous Hall Effect
• Spin and Charge Shot Noise in Mesoscopic Spin Hall Systems
• Generation and Measurement of Non Equilibrium Spin Currents in Two Terminal Systems