Critical level spacing distribution of two-dimensional disordered systems with spin-orbit coupling

Details Critical level spacing distribution of two-dimensional disordered systems with spin-orbit coupling Critical level spacing distribution of two-dimensional disordered systems with spin-orbit coupling

1995-06-16

arxiv.org/abs/cond-mat/9506072v1

Physics

Condensed Matter

7 pages REVTeX, 2 uuencoded, gzipped figures; J. Phys. Condensed Matter, in print

Scientific paper

10.1088/0953-8984/7/28/002

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.

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