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Effect of quantum confinement on exciton-phonon interactions
dc.contributor.author | Zhao, Hui | |
dc.contributor.author | Wachter, Sven | |
dc.contributor.author | Kalt, Heinz | |
dc.date.accessioned | 2011-04-07T13:32:10Z | |
dc.date.available | 2011-04-07T13:32:10Z | |
dc.date.issued | 2002-08 | |
dc.identifier.citation | Hui Zhao, S. Wachter, and H. Kalt, Effect of quantum confinement on exciton-phonon interactions, Physical Review B 66, 085337 (2002). http://link.aps.org/doi/10.1103/PhysRevB.66.085337 | |
dc.identifier.uri | http://hdl.handle.net/1808/7362 | |
dc.description | Permissions were not obtained for sharing the full text of this article. Full text is available from the American Physical Society and from arXiv. See links in this record. | |
dc.description.abstract | We investigate the homogeneous linewidth of localized type-I excitons in type-II GaAs/AlAs superlattices. These localizing centers represent the intermediate case between quasi-two-dimensional (Q2D) and quasi-zero-dimensional localizations. The temperature dependence of the homogeneous linewidth is obtained with high precision from micro-photoluminescence spectra. We confirm the reduced interaction of the excitons with their environment with decreasing dimensionality except for the coupling to LO-phonons. The low-temperature limit for the linewidth of these localized excitons is five times smaller than that of Q2D excitons. The coefficient of exciton-acoustic-phonon interaction is 5 ~ 6 times smaller than that of Q2D excitons. An enhancement of the average exciton-LO-phonon interaction by localization is found in our sample. But this interaction is very sensitive to the detailed structure of the localizing centers. | |
dc.publisher | American Physical Society | |
dc.relation.hasversion | http://arxiv.org/abs/cond-mat/0207142v2 | |
dc.subject | Strongly Correlated Electrons | |
dc.subject | Materials Science | |
dc.title | Effect of quantum confinement on exciton-phonon interactions | |
dc.type | Other | |
kusw.kuauthor | Zhao, Hui | |
kusw.kudepartment | Physics and Astronomy | |
kusw.oastatus | publisherdenied | |
dc.identifier.doi | 10.1103/PhysRevB.66.085337 | |
kusw.oapolicy | This item does not meet KU Open Access policy criteria. Publisher denied. | |
dc.rights.accessrights | openAccess |