RT Journal Article
T1 Optical absorption in paired correlated random lattices
A1 Domínguez-Adame, Francisco
A1 Maciá, Enrique
A1 Sánchez, Angel
AB Optical absorption in a random one-dimensional lattice in the presence of paired correlated disorderis studied. The absorption line shape is evaluated by solving the microscopic equations of motionof the F'renkel-exciton problem in the lattice. We find that paired correlation causes the occurrenceof well-defined characteristic lines in the absorption spectra which clearly differ from the case ofunpaired correlation. The behavior of the absorption lines as a function of defect concentration isstudied in detail. We also show how exciton dynamics can be inferred from experimental data byderiving an analytical expression relating the energy and intensity of lines to the model parameters.
PB American Physical Society
SN 1098-0121 (print version)
SN 1550-235X (online version)
YR 1994
FD 1994-09-01
LK https://hdl.handle.net/10016/15211
UL https://hdl.handle.net/10016/15211
LA eng
NO This work is partially supported by UCM under project No. PR161/93-4811. A.S. is supported by a Ministerio de Educaci6n y Ciencia (Spain)/Fulbright postdoctoral scholarship, by Direcci6n General de Investigaci6n Cientifica y Tecnica (Spain) through Project No. PB92-0248, and by the European Community (Union Human Capital and Mobility Programme through Contract No. ERBCHRXCT930413). Work at Los Alamos is performed under the auspices of the U .S. Department of Energy. Rev.
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RD 1 sept. 2024