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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.

Experimental Evidence of Delocalized States in Random Dimer Superlattices

BELLANI, VITTORIO;
1999-01-01

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.
1999
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PHYSICAL REVIEW LETTERS
sì
WOS:000078959700038
2-s2.0-0000712586
Sì, ma tipo non specificato
Inglese
Internazionale
STAMPA
82
2159
2162
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Anderson localization; Superlattices; Electron transport
http://link.aps.org/doi/10.1103/PhysRevLett.82.2159
8
info:eu-repo/semantics/article
262
Bellani, Vittorio; E., Die; R., Hey; L., Toni; L., Tarricone; G. B., Parravicini; F., Domínguez Adame; R., Gómez Alcalá
1 Contributo su Rivista::1.1 Articolo in rivista
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1.1 Articolo in rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/100595
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