Anomalous optical absorption in a random system with scale-free disorder
| dc.contributor.author | Díaz García, Elena | |
| dc.contributor.author | Rodriguez, A. | |
| dc.contributor.author | Domínguez-Adame Acosta, Francisco | |
| dc.contributor.author | Malyshev, Andrey | |
| dc.date.accessioned | 2023-06-20T10:48:12Z | |
| dc.date.available | 2023-06-20T10:48:12Z | |
| dc.date.issued | 2005-12 | |
| dc.description | © EDP Sciences The authors thank A. V. Malyshev, M. L. Lyra and F. A. B. F. de Moura for helpful comments. This work was supported by DGI-MCyT (Project MAT2003-01533) and CAM (Project GR/MAT/0039/2004). V. A. M. acknowledges support from ISTC (grant #2679). | |
| dc.description.abstract | Optical spectroscopy usually fails in detecting localization-delocalization (Anderson) transitions. We report on an anomalous behavior of the absorption spectrum in a one-dimensional lattice with long-range correlated diagonal disorder, having a power-like spectrum S(k)similar to 1/k(alpha). This type of correlations gives rise to a phase of extended states at the band center, provided alpha is larger than a critical value alpha(c). We show that for alpha<alpha(c), the absorption spectrum is single-peaked, while an additional peak arises when alpha>alpha(c), signaling the occurrence of the Anderson transition. The peak is located slightly below the low-energy mobility edge, providing a unique spectroscopic tool to monitor the latter. We present qualitative arguments explaining this anomaly. | |
| dc.description.department | Depto. de Física de Materiales | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | DGI-MCyT | |
| dc.description.sponsorship | CAM | |
| dc.description.sponsorship | ISTC | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/27405 | |
| dc.identifier.doi | 10.1209/epl/i2005-10321-x | |
| dc.identifier.issn | 0295-5075 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1209/epl/i2005-10321-x | |
| dc.identifier.relatedurl | http://iopscience.iop.org | |
| dc.identifier.relatedurl | http://arxiv.org/abs/cond-mat/0501311 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/51251 | |
| dc.issue.number | 6 | |
| dc.journal.title | Europhysics Letters | |
| dc.language.iso | eng | |
| dc.page.final | 1024 | |
| dc.page.initial | 1018 | |
| dc.publisher | EDP Sciences | |
| dc.relation.projectID | MAT2003-01533 | |
| dc.relation.projectID | GR/MAT/0039/2004 | |
| dc.relation.projectID | #2679 | |
| dc.rights.accessRights | restricted access | |
| dc.subject.cdu | 538.9 | |
| dc.subject.keyword | Metal-Insulator-Transition | |
| dc.subject.keyword | Correlated disorder | |
| dc.subject.keyword | Mobility edge | |
| dc.subject.keyword | Localization | |
| dc.subject.keyword | Absence | |
| dc.subject.keyword | Diffusion | |
| dc.subject.keyword | Transport | |
| dc.subject.keyword | Chains | |
| dc.subject.keyword | Models | |
| dc.subject.keyword | States | |
| dc.subject.ucm | Física de materiales | |
| dc.title | Anomalous optical absorption in a random system with scale-free disorder | |
| dc.type | journal article | |
| dc.volume.number | 72 | |
| dcterms.references | [1] Anderson P. W., Phys. Rev., 109 (1958) 1492. [2] Abraham E., Anderson P. W., Licciardello D. C and Ramakrishnan T. V., Phys. Rev. Lett., 42 (1979) 673. [3] Beenakker C. W. J., Rev. Mod. Phys., 69 (1997) 731. [4] Janssen M., Phys. Rep., 295 (1998) 1. [5] Flores J. C., J. Phys. Condens. Matter, 1 (1989) 8471. [6] Phillips P. and Wu H. -L., Science, 252 (1991) 1805. [7] Flores J. C. and Hilke M., J. Phys. A, 26 (1993) L1255. [8] Domínguez-Adame F., Maciá E. and Sánchez A. , Phys. Rev. B, 48 (1993) 6054. [9] Bellani V., Diez E., Hey R., Toni L., Tarricone L., Parravicini G. B., Domínguez-Adame F. and Gómez-Alcalá R. , Phys. Rev. Lett., 82 (1999) 2159. [10] de Moura F. A. B. F. and Lyra M. L., Phys. Rev. Lett., 81 (1998) 3735. [11] Kuhl U., Izrailev F. M., Krokhin A. A. and Stöckmann H. -J. , Appl. Phys. Lett., 77 (2000) 633. [12] Izrailev F. M. and Krokhin A. A., Phys. Rev. Lett., 82 (1999) 4062. [13] Carpena P., Galván P. B., Ivanov P. Ch. and Stanley H. E., Nature, 418 (2002) 955; Nature, 421 (2003) 764. [14] Yamada H., Phys. Lett. A, 332 (2004) 65; Int. J. Mod. Phys. B, 18 (2004) 1697. [15] Carpena P., Bernaola-Galván P. and Ivanov P. Ch., Phys. Rev. Lett., 93 (2004) 176804. [16] Domínguez-Adame F., Malyshev V. A., de Moura F. A. B. F. and Lyra M. L., Phys. Rev. Lett., 91 (2003) 197402. [17] Fidder H., Knoester J. and Wiersma D. W., J. Chem. Phys., 95 (1991) 7880. [18] Russ S., Havlin S. and Webman I., Philos. Mag. B, 77 (1998) 1449. [19] Ndawana M. L., Römer R. A. and Schreiber M., Europhys. Lett., 68 (2004) 678. [20] Malyshev V. A., Rodríguez A. and Dom´ınguez-Adame F., Phys. Rev. B, 60 (1999) 14140. [21] Maciá E. and Domínguez-Adame F., Electrons, Phonons and Excitons in Low-dimensional Aperiodic Systems (Editorial Complutense, Madrid) 2000. | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | d03da7bf-8066-4f33-93e2-ac077fd4fcb8 | |
| relation.isAuthorOfPublication | dbc02e39-958d-4885-acfb-131220e221ba | |
| relation.isAuthorOfPublication | b2abe0ef-0417-4f43-8dce-55d3205e22ec | |
| relation.isAuthorOfPublication.latestForDiscovery | d03da7bf-8066-4f33-93e2-ac077fd4fcb8 |
