Resonant Scattering and Energy Relaxation in Quantum Dot Systems
We propose a new Auger-like mechanism for energy relaxation in quantum dots (QD) driven by resonant scattering of delocalized wetting layer (WL) carriers. It is demonstrated that resonant scattering leads to a considerable increase in the relaxation rate that can explain experimentally obtained rela...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2017/4396915 |
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| author | I. A. Larkin A. Vagov |
| author_facet | I. A. Larkin A. Vagov |
| author_sort | I. A. Larkin |
| collection | DOAJ |
| description | We propose a new Auger-like mechanism for energy relaxation in quantum dots (QD) driven by resonant scattering of delocalized wetting layer (WL) carriers. It is demonstrated that resonant scattering leads to a considerable increase in the relaxation rate that can explain experimentally obtained relaxation rates. Analytical results for the relaxation rate are obtained for rectangular dots revealing a weak logarithmic dependence on the dot depth and level density. Comparing results for a rectangular and a parabolic QD model we conclude that the relaxation rate is not very sensitive to a chosen model. |
| format | Article |
| id | doaj-art-a4e193edf9744f0dae5b2fa0eec65310 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-a4e193edf9744f0dae5b2fa0eec653102025-02-03T05:47:52ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242017-01-01201710.1155/2017/43969154396915Resonant Scattering and Energy Relaxation in Quantum Dot SystemsI. A. Larkin0A. Vagov1Institute of Microelectronics Technology Russian Academy of Sciences, Chernogolovka 142432, RussiaInstitut für Theoretische Physik III, Bayreuth Universität, 95440 Bayreuth, GermanyWe propose a new Auger-like mechanism for energy relaxation in quantum dots (QD) driven by resonant scattering of delocalized wetting layer (WL) carriers. It is demonstrated that resonant scattering leads to a considerable increase in the relaxation rate that can explain experimentally obtained relaxation rates. Analytical results for the relaxation rate are obtained for rectangular dots revealing a weak logarithmic dependence on the dot depth and level density. Comparing results for a rectangular and a parabolic QD model we conclude that the relaxation rate is not very sensitive to a chosen model.http://dx.doi.org/10.1155/2017/4396915 |
| spellingShingle | I. A. Larkin A. Vagov Resonant Scattering and Energy Relaxation in Quantum Dot Systems Advances in Condensed Matter Physics |
| title | Resonant Scattering and Energy Relaxation in Quantum Dot Systems |
| title_full | Resonant Scattering and Energy Relaxation in Quantum Dot Systems |
| title_fullStr | Resonant Scattering and Energy Relaxation in Quantum Dot Systems |
| title_full_unstemmed | Resonant Scattering and Energy Relaxation in Quantum Dot Systems |
| title_short | Resonant Scattering and Energy Relaxation in Quantum Dot Systems |
| title_sort | resonant scattering and energy relaxation in quantum dot systems |
| url | http://dx.doi.org/10.1155/2017/4396915 |
| work_keys_str_mv | AT ialarkin resonantscatteringandenergyrelaxationinquantumdotsystems AT avagov resonantscatteringandenergyrelaxationinquantumdotsystems |