Bellani, V.Díez, E.Hey, R.Toni, L.Tarricone, L.Parravicini, G.B.Domínguez-Adame Acosta, FranciscoGómez-Alcalá, R.2023-06-202023-06-201999-03-08[1] J. C. Flores, J. Phys. Condens. Matter 1, 8479 (1989). [2] D. H. Dunlap, H.-L. Wu, and P. Phillips, Phys. Rev. Lett. 65, 88 (1990). [3] P. Phillips and H.-L. Wu, Science 252, 1805 (1991). [4] A. Sánchez, E. Maciá, and F. Domı´nguez-Adame, Phys. Rev. B 49, 147 (1994). [5] E. Díez, A. Sánchez, and F. Domínguez-Adame, Phys. Rev. B 50, 14 359 (1994). [6] F. Domínguez-Adame, A. Sánchez, and E. Diez, Phys. Rev. B 50, 17 736 (1994). [7] E. Díez, A. Sánchez, and F. Domínguez-Adame, IEEE J. Quantum Electron. 31, 1919 (1995). [8] E. Díez, A. Sánchez, F. Domínguez-Adame, and G. P. Berman, Phys. Rev. B 54, 14 550 (1996). [9] A. Chomette, B. Deveaud, A. Regreny, and G. Bastard, Phys. Rev. Lett. 57, 1464 (1986). [10] L. Pavesi, E. Tuncel, B. Zimmermann, and F. K. Reinhart, Phys. Rev. B 39, 7788 (1989). [11] Y. A. Zhang, J. A. Strozier, Jr., and A. Ignatiev, Phys. Rev. B 53, 7426 (1996). [12] G. F. Lorusso, V. Capozzi, and J. L. Staehli, Semicond. Sci. Technol. 11, 308 (1996). [13] K. A. Mäder, L.-W. Wang, and A. Zunger, Phys. Rev. Lett. 74, 2555 (1995). [14] K. A. Mäder, L.-W. Wang, and A. Zunger, J. Appl. Phys. 78, 6639 (1995). [15] K. Fujiwara, in Semiconductor Superlattices, edited by H. T. Grahn (World Scientific, Singapore, 1995). [16] Exciton binding energies are much smaller than the observed peak shifts. [17] G. Richter, W. Stolz, P. Thomas, S. W. Koch, K. Maschke, and I. P. Zvyagin, Superlattices Microstruct. 22, 475 (1997).0031-900710.1103/PhysRevLett.82.2159https://hdl.handle.net/20.500.14352/59362© 1999 The American Physical Society. Work in Italy has been supported by the INFM Network “Fisica e Tecnologia dei Semiconduttori III-V” and in Madrid by the CAM under Project No. 07N/0034/1998. E. D. and F. D.-A. thank A. Sánchez for collaboration on these topics during these years.We study the electronic properties of GaAs-AlGaAs superlattices with intentional correlated disorder by means of photoluminescence and vertical de resistance. The results are compared to those obtained in ordered and uncorrelated disordered superlattices. We report the first experimental evidence that spatial correlations inhibit localization of states in disordered low-dimensional systems, as our previous theoretical calculations suggested, in contrast to the earlier belief that all eigenstates are localized.engjournal articlehttp://dx.doi.org/10.1103/PhysRevLett.82.2159http://journals.aps.org/open access538.9Correlated DisorderDc ConductanceLocalizationAbsencePhotoluminescenceFísica de materiales