Spin Hall angle fluctuations in a disorder device

Abstract

We investigate a disorderly mesoscopic device that supports spin-orbit interaction. The systemis connected to four semi-infinite leads embedded in the Landauer-Buttiker setup for quantumtransport and, according to our analysis, exhibits spin Hall angle fluctuations. We show analyticallyand numerically the fingerprint of the universal fluctuation of the polarization mediated by theconversion of charge current into spin current. Our investigation shows the complete compatibilityof our analytical and numerical results with the most recent experiments. Furthermore, we shownonzero and universal features of spin Hall effect in Rashba 2DEG with disorder. All the resultsshow the relevance of microscopic parameters for electronic transport with charge-spin conversionand, in many cases, inevitably lead to universal numbers.

Accepted for publication as a Rapid Communication in Physical Review B

References in corpus (11)

• Emergent Phenomena Induced by Spin-Orbit Coupling at Surfaces and Interfaces
• Onsager Relations in Coupled Electric, Thermoelectric and Spin Transport: The Ten-Fold Way
• Mesoscopic Spin Hall Effect in Multiprobe Ballistic Spin-Orbit Coupled Semiconductor Bridges
• Universal spin-Hall conductance fluctuations in two dimensions
• Mesoscopic Spin Hall Effect
• Extrinsic Entwined with Intrinsic Spin Hall Effect in Disordered Mesoscopic Bars
• Generalized correlation functions for conductance fluctuations and the mesoscopic spin Hall effect
• What can we learn about the dynamics of transported spins by measuring shot noise in spin-orbit-coupled nanostructures?
• Universal Braess paradox in open quantum dots
• Spin-to-Charge Conversion in 2D Electron Gas and Single-layer Graphene Devices
• Numerical simulations of a ballistic spin interferometer with the Rashba spin-orbital interaction