%0 Journal Article %A Parisini, A. %A Tarricone, L. %A Bellani, V. %A Parravicini, G. B. %A Díaz García, Elena %A Domínguez-Adame Acosta, Francisco %A Hey, R. %T Electronic structure and vertical transport in random dimer GaAs-Al_xGa_(1-x)As superlattices %D 2001 %@ 1098-0121 %U https://hdl.handle.net/20.500.14352/59352 %X We report a systematic study of several GaAs-AlxGa1-xAs semiconductor superlattices grown by molecular-beam epitaxy specifically designed to explore the existence of extended states in random dimer superlattices. We have confirmed our previous results [V. Bellani et al., Phys. Rev. Lett. 82, 2159 (1999)] with much additional evidence that allows us to lay claim to a clear-cut experimental verification of the presence of extended states in random dimer superlattices due to the short-range correlations (dimers) that inhibit the localization effects of the disorder. %~