Excitation optical-absorption in self-similar aperiodic lattices
| dc.contributor.author | Maciá Barber, Enrique Alfonso | |
| dc.contributor.author | Domínguez-Adame Acosta, Francisco | |
| dc.date.accessioned | 2023-06-20T19:12:01Z | |
| dc.date.available | 2023-06-20T19:12:01Z | |
| dc.date.issued | 1994-12-15 | |
| dc.description | © 1994 The American Physical Society. The authors thank A. Sánchez for a critical reading of the manuscript. This work was partially supported by Universidad Complutense through Project No. PR161/93-4811. | |
| dc.description.abstract | Exciton optical absorption in self-similar aperiodic one-dimensional systems is considered, focusing our attention on Thue-Morse and Fibonacci lattices as canonical examples. The absorption line shape is evaluated by solving the microscopic equations of motion of the Frenkel-exciton problem on the lattice, in which on-site energies take on two values, according to the Thue-Morse or Fibonacci sequences. Results are compared to those obtained in random lattices with the same stoichiometry and size. We find that aperiodic order causes the occurrence of well-de6ned characteristic features in the absorption spectra, which clearly di8'er from the case of random systems, indicating a most peculiar exciton dynamics. The origin of all the absorption lines is assigned by considering the self-similar aperiodic lattices as composed of two-center blocks, within the same spirit of the renormalization group ideas. | |
| dc.description.department | Depto. de Física de Materiales | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | Universidad Complutense | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/27793 | |
| dc.identifier.doi | 10.1103/PhysRevB.50.16856 | |
| dc.identifier.issn | 0163-1829 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1103/PhysRevB.50.16856 | |
| dc.identifier.relatedurl | http://journals.aps.org | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/59382 | |
| dc.issue.number | 23 | |
| dc.journal.title | Physical Review B | |
| dc.language.iso | eng | |
| dc.page.final | 16860 | |
| dc.page.initial | 16856 | |
| dc.publisher | American Physical Society | |
| dc.relation.projectID | No. PR161/93-4811 | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 538.9 | |
| dc.subject.keyword | Gaas-Alas Heterostructures | |
| dc.subject.keyword | Thue-Morse Chain | |
| dc.subject.keyword | Electronic-Properties | |
| dc.subject.keyword | Phonon Properties | |
| dc.subject.keyword | Energy-Spectrum | |
| dc.subject.keyword | Wave-Function | |
| dc.subject.keyword | Fibonacci | |
| dc.subject.keyword | Systems | |
| dc.subject.ucm | Física de materiales | |
| dc.title | Excitation optical-absorption in self-similar aperiodic lattices | |
| dc.type | journal article | |
| dc.volume.number | 50 | |
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| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | dd37b3ce-0186-44e8-a4b6-62cef9121754 | |
| relation.isAuthorOfPublication | dbc02e39-958d-4885-acfb-131220e221ba | |
| relation.isAuthorOfPublication.latestForDiscovery | dd37b3ce-0186-44e8-a4b6-62cef9121754 |
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