Critical level spacing distribution of two-dimensional disordered systems with spin-orbit coupling
- 10 July 1995
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 7 (28) , L377-L381
- https://doi.org/10.1088/0953-8984/7/28/002
Abstract
The energy level statistics of 2D electrons with spin-orbit scattering are considered near the disorder-induced metal-insulator transition. Using the Ando model, the nearest-level-spacing distribution is calculated numerically at the critical point. It is shown that the critical spacing distribution is size independent and has a Poisson-like decay at large spacings as distinct from the Gaussian asymptotic form obtained by the random-matrix theory.Keywords
All Related Versions
This publication has 18 references indexed in Scilit:
- Metal-insulator transition in two-dimensional Ando modelJournal de Physique I, 1994
- Universal spectral correlations at the mobility edgePhysical Review Letters, 1994
- Statistics of spectra of disordered systems near the metal-insulator transitionPhysical Review B, 1993
- Localization properties of 2D systems with spin-orbit coupling: new numerical resultsPhysica A: Statistical Mechanics and its Applications, 1992
- Universality in the 2D localization problemPhysica A: Statistical Mechanics and its Applications, 1991
- Scaling exponents at the mobility edgePhysica A: Statistical Mechanics and its Applications, 1990
- Numerical study of symmetry effects on localization in two dimensionsPhysical Review B, 1989
- Universal energy-level statistics for disordered metalsPhysical Review B, 1989
- Localization in two-dimensional square lattices: Effects of magnetic field and spin-orbit interactionSurface Science, 1988
- The Anderson transition in two dimensions in the presence of spin-orbit couplingJournal of Physics C: Solid State Physics, 1987