2007/01/17 by Cătălin Paşcu Moca, C. P. Moca, D. C. Marinescu · 1 citation
Physics and Astronomy · #Condensed matter physics #Conductivity #Electron #Fermi gas #Formalism (music) #Hall conductivity #Kubo formula #Magnetic properties of thin films #Mean free path #Physics #Physics of Superconductivity and Magnetism #Quantum Hall effect #Quantum and electron transport phenomena #Quantum mechanics #Rashba effect #Schrödinger equation #Spin (aerodynamics) #Spintronics #Spin–orbit interaction #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.75.035325
published as Phys. Rev. B 75, 035325 (2007) · 5 pages, 3 figures
openalex publication_date 2007/01/17 · arxiv created 2007/01/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Within the Kubo formalism, we estimate the spin-Hall conductivity in a two-dimensional electron gas with Rashba spin-orbit interaction and study its variation as a function of disorder strength and system size. The numerical algorithm employed in the calculation is based on the direct numerical integration of the time-dependent Schr"odinger equation in a spin-dependent variant of the particle-source method. We find that the spin-precession length Ls, controlled by the strength of the Rashba coupling, establishes the critical length scale that marks the significant reduction of the spin-Hall conductivity in bulk systems. In contrast, the electron mean free path, inversely proportional to the strength of disorder, appears to have only a minor effect.