Electrical probing of the spin conductance of mesoscopic cavities
arXiv:0808.2756 · doi:10.1088/0953-8984/21/15/155503
Abstract
We investigate spin-dependent transport in three--terminal mesoscopic cavities with spin--orbit coupling. Focusing on the inverse spin Hall effect, we show how injecting a pure spin current or a polarized current from one terminal generates additional charge current and/or voltage across the two output terminals. This allows to extract the spin conductance of the cavity from two purely electrical measurements on the output. We use random matrix theory to show that the spin conductance of chaotic ballistic cavities fluctuates universally about zero mesoscopic average and describe experimental implementations of mesoscopic spin to charge current converters.
5 Pages, 1 figure, RevTex
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Cited by in corpus (14)
- Onsager Relations in Coupled Electric, Thermoelectric and Spin Transport: The Ten-Fold Way
- Dynamic spin-Hall effect and driven spin helix for linear spin-orbit interactions
- Spin Accumulation in Diffusive Conductors with Rashba and Dresselhaus Spin-Orbit Interaction
- Measuring Spin Accumulations with Current Noise
- Kinetic theory of spin-polarized systems in electric and magnetic fields with spin-orbit coupling: I. Kinetic equation and anomalous Hall and spin-Hall effects
- Generalized correlation functions for conductance fluctuations and the mesoscopic spin Hall effect
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- Spin conductances and magnetization production in chiral molecular junctions
- Scattering Theory of Current-Induced Spin Polarization
- Dynamical Spin-Orbit-Based Spin Transistor