Spin-Hall Effect in A Symmetric Quantum Wells by A Random Rashba Field

Abstract

Changes dopant ion concentrations in the sides of a symmetric quantum well are known to create a random Rashba-type spin-orbit coupling. Here we demonstrate that, as a consequence, a finite size spin-Hall effect is also present. Our numerical algorithm estimates the result of the Kubo formula for the spin-Hall conductivity, by using a tight-binding approximation of the Hamiltonian in the framework of a time-dependent Green's function formalism, well suited for very large systems.

4 pages, 4 figures in eps format

References in corpus (11)

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Cited by in corpus (6)

• Spin relaxation and combined resonance in two-dimensional electron systems with spin-orbit disorder
• Robust to impurity-scattering spin Hall effect in two-dimensional electron gas
• Intrinsic spin Hall effect in systems with striped spin-orbit coupling
• Charge and spin conductivity of a two-dimensional electron gas with random Rashba interaction
• Spin Hall angle in single-layer graphene
• Spin Hall Conductivity on the Anisotropic Triangular Lattice