1999/01/04 by D. N. Sheng, Sheng, D. N., Z. Y. Weng +1
Physics and Astronomy · #Disordered Systems and Neural Networks (cond-mat.dis-nn) #FOS: Physical sciences #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.dis-nn #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/9901019
4 pages, LaTeX, 4 PS figures
arxiv created 1999/01/04 · arxiv updated 2009/11/30
We reexamine the problem of delocalization of two-dimensional electrons in the presence of random magnetic field. By introducing spatial correlations among random fluxes, a well-defined metal-insulator transition characterized by a two-branch scaling of conductance has been demonstrated numerically. Critical conductance is found non-universal with a value around e2/h. Interesting connections of this system with the recently observed B=0 two-dimensional metallic phase (Kravchenko et al., Phys. Rev. B \bf 50, 8039 (1994)) are also discussed.