2026-08-20T06:02:07Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/593512024-08-27T16:50:15Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Rodriguez, A.
author
Martín-Delgado Alcántara, Miguel Ángel
author
Rodriguez-Laguna, J.
author
Sierra, G.
author
Malyshev, Andrey
author
Domínguez-Adame Acosta, Francisco
author
Lemaistre, I. J.
2023-06-20T19:10:34Z
2023-06-20T19:10:34Z
2001-12
0022-2313
10.1016/S0022-2313(01)00302-7
https://hdl.handle.net/20.500.14352/59351
http://dx.doi.org/10.1016/S0022-2313(01)00302-7
http://www.sciencedirect.com/http://arxiv.org/abs/cond-mat/0201535
The standard one-parameter scaling theory predicts that all eigenstates in two-dimensional random lattices are weakly localized. We show that this claim fails in two-dimensional dipolar Frenkel exciton systems. The linear energy dispersion at the top of the exciton band, originating from the long-range inter-site coupling of dipolar nature, yields the same size-scaling law for the level spacing and the effective disorder seen by the exciton. This finally results in the delocalization of those eigenstates in the thermodynamic limit. Large scale numerical simulations allow us to perform a detailed multifractal analysis and to elucidate the nature of the excitonic eigenstates.
eng
Absence of weak localization in two-dimensional disordered Frenkel lattices
journal article
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https://docta.ucm.es/bitstreams/3d3d449d-b371-4880-a5bd-4b8338b438b1/download
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57a0501775304f176a8ebd993034def1
106351
application/pdf
Dguez-Adame76preprint.pdf
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Dguez-Adame76preprint.pdf.txt