2026-06-29T07:36:27Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/593812023-08-26T10:22:08Zcom_20.500.14352_14col_20.500.14352_15
Excitation decay in one-dimensional disordered-systems with paired traps
Sánchez, A.
Domínguez-Adame Acosta, Francisco
Maciá Barber, Enrique Alfonso
538.9
Random-Dimer Model
Effective-Medium Approximation
Random Chains
Diffusion
Transport
Localization
Física de materiales
© 1995 The American Physical Society.
This work is partially supported by Universidad Complutense through project PR161/93-4811. A.S. is partially supported by DGICyT (Spain) Grant No. PB92-0248, by MEC (Spain)/Fulbright, and by the European Union Network RBCHRXCT930413. Work at I os Alamos is performed under the auspices of the U.S. DOE.
Incoherent transport of excitations in one-dimensional disordered lattices with pairs of traps placed at random is studied by numerically solving the corresponding aster equation. Results are compared to the case of lattices with the same concentration of unpaired traps, and it is found that pairing of traps causes a slowdown of the decay rate of both the mean square displacement and the survival probability of excitations. We suggest that this result is due to the presence of larger trap-free segments in the lattices with paired disorder, which mplies that pairing of traps causes less disruption on the dynamics of excitations. In the conclusion we discuss the implications of our work, placing it in a more general context.
Universidad Complutense
DGICyT (Spain)
European Union Network
Depto. de Física de Materiales
Fac. de Ciencias Físicas
TRUE
pub
2023-06-20T19:11:58Z
2023-06-20T19:11:58Z
1995-01-01
journal article
https://hdl.handle.net/20.500.14352/59381
1098-0121
10.1103/PhysRevB.51.173
eng
(PR161/93-4811. A.S)
(No. PB92-0248)
(RBCHRXCT930413)
open access
application/pdf
American Physical Society