Edge spin current and spin polarization in quantum Hall regime

2005/03/31 by Yun-Juan Bao, Huai-Bing Zhuang, Shun-Qing Shen +2 · 1 citation
Engineering · Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Semiconductor materials and devices #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.72.245323

published as Phys. Rev. B 72, 245323 (2005) · 4 pages, 4 figures

arxiv created 2005/05/06 · openalex publication_date 2005/12/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study the edge spin current and spin polarization, and their repsonses to an external electric field in a two-dimensional electron gas with a Rashba spin-orbit coupling in the quantum Hall regime. The edge state carries a large spin current, which drops sharply away from the boundary. The spin Hall current of the edge states has a resonance at a critical magnetic field, accompanied by a spin rotation in the bulk. The spin Hall current is shown to be proportional to the spin polarization, which provides an explicit way to extract the spin current in experiment.

Citations

• Observation of the Spin Hall Effect in Semiconductors
• Resonant spin Hall conductance in quantum Hall systems lacking bulk and structural inversion symmetry
• Spin Hall effect and Berry phase in two-dimensional electron gas
• Theory of edge states in systems with Rashba spin-orbit coupling
• Dissipationless Quantum Spin Current at Room Temperature
• Resonant Spin Hall Conductance in Two-Dimensional Electron Systems with a Rashba Interaction in a Perpendicular Magnetic Field

Cited by

• THEORY OF RESONANT SPIN HALL EFFECT