Localization transition in multilayered disordered systems - art. no. 144526

The Anderson delocalization-localization transition is studied in multilaye red systems with randomly placed interlayer bonds of density p and strength t. In the absence of diagonal disorder (W=0), following an appropriate per turbation expansion, we estimate the mean free paths in the main directions and verify by scaling of the conductance that the states remain extended f or any finite p, despite the interlayer disorder. In the presence of additi onal diagonal disorder (W>0) we obtain an Anderson transition with critical disorder W-c and localization length exponent v independently of the direc tion. The critical conductance distribution P-c(g) varies, however, for the parallel and the perpendicular directions. The results are discussed in co nnection to disordered anisotropic materials.