Abstract
We re-examine the delocalization problem of two-dimensional electrons in the presence of random magnetic fields. By introducing short-range 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, 50 (1994) 8039) are also discussed.