Experimental evidence of delocalized states in random dimer superlattices
Mesoscale and Nanoscale Physics
2009-10-31 v1 Disordered Systems and Neural Networks
Abstract
We study the electronic properties of GaAs-AlGaAs superlattices with intentional correlated disorder by means of photoluminescence and vertical dc 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.
Keywords
Cite
@article{arxiv.cond-mat/9902072,
title = {Experimental evidence of delocalized states in random dimer superlattices},
author = {V. Bellani and E. Diez and R. Hey and L. Toni and L. Tarricone and G. P. Parravicini and F. Dominguez-Adame and R. Gomez-Alcala},
journal= {arXiv preprint arXiv:cond-mat/9902072},
year = {2009}
}
Comments
4 pages, 5 figures. Physical Review Letters (in press)