Exciton-light coupling in (In,Ga)As/GaAs quantum wells in a longitudinal magnetic field
We report on the observation of a significant increase of the radiative decay rates for exciton transitions in a wide (In,Ga)As/GaAs quantum well (L=95 nm) in magnetic fields up to 6 T applied along the growth axis of the heterostructure. The absolute values of the radiative decay rates are obtained...
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| Veröffentlicht in: | Physical review. B 2017-10, Vol.96 (15), Article 155404 |
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| container_title | Physical review. B |
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| creator | Grigoryev, P. S. Ignatiev, I. V. Davydov, V. G. Efimov, Yu. P. Eliseev, S. A. Lovtcius, V. A. Shapochkin, P. Yu Bayer, M. |
| description | We report on the observation of a significant increase of the radiative decay rates for exciton transitions in a wide (In,Ga)As/GaAs quantum well (L=95 nm) in magnetic fields up to 6 T applied along the growth axis of the heterostructure. The absolute values of the radiative decay rates are obtained from a quantitative analysis of resonant features in the experimentally measured reflectance spectra in the range of the optical transitions to the quantum-confined exciton states. High crystalline quality of the heterostructure allows us to observe the ground and several excited exciton transitions with the nonradiative broadening comparable to the radiative one. We employ a numerical procedure appropriate for the studied wide quantum well to model the increase of the radiative decay rate in magnetic field. The results of the modeling agree well with the experimental data. |
| doi_str_mv | 10.1103/PhysRevB.96.155404 |
| format | Article |
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S. ; Ignatiev, I. V. ; Davydov, V. G. ; Efimov, Yu. P. ; Eliseev, S. A. ; Lovtcius, V. A. ; Shapochkin, P. Yu ; Bayer, M.</creator><creatorcontrib>Grigoryev, P. S. ; Ignatiev, I. V. ; Davydov, V. G. ; Efimov, Yu. P. ; Eliseev, S. A. ; Lovtcius, V. A. ; Shapochkin, P. Yu ; Bayer, M.</creatorcontrib><description>We report on the observation of a significant increase of the radiative decay rates for exciton transitions in a wide (In,Ga)As/GaAs quantum well (L=95 nm) in magnetic fields up to 6 T applied along the growth axis of the heterostructure. The absolute values of the radiative decay rates are obtained from a quantitative analysis of resonant features in the experimentally measured reflectance spectra in the range of the optical transitions to the quantum-confined exciton states. High crystalline quality of the heterostructure allows us to observe the ground and several excited exciton transitions with the nonradiative broadening comparable to the radiative one. We employ a numerical procedure appropriate for the studied wide quantum well to model the increase of the radiative decay rate in magnetic field. The results of the modeling agree well with the experimental data.</description><identifier>ISSN: 2469-9950</identifier><identifier>EISSN: 2469-9969</identifier><identifier>DOI: 10.1103/PhysRevB.96.155404</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Decay rate ; Excitons ; Gallium arsenide ; Heterostructures ; Magnetic fields ; Mathematical models ; Quantitative analysis ; Quantum wells ; Reflectance</subject><ispartof>Physical review. 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We employ a numerical procedure appropriate for the studied wide quantum well to model the increase of the radiative decay rate in magnetic field. The results of the modeling agree well with the experimental data.</description><subject>Decay rate</subject><subject>Excitons</subject><subject>Gallium arsenide</subject><subject>Heterostructures</subject><subject>Magnetic fields</subject><subject>Mathematical models</subject><subject>Quantitative analysis</subject><subject>Quantum wells</subject><subject>Reflectance</subject><issn>2469-9950</issn><issn>2469-9969</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNo9kM1KAzEAhIMoWGpfwFPAi4Lb5n-bYy11LRQUUTyGdDfZpqTZdpNV-_a2VD3NwAzD8AFwjdEQY0RHL6t9fDWfD0MphphzhtgZ6BEmZCalkOf_nqNLMIhxjRDCAskcyR74mH2XLjUh865eJVg23da7UEMX4O083Bf6bhJHhZ5EuOt0SN0Gfhnv4zHX0DehdqmrXNAebnQdTHIltM746gpcWO2jGfxqH7w_zt6mT9niuZhPJ4usJDlPGa-YwWPDmWW6EpW0uWZ0SZkU2CxxJaTIObVca6u1QFgig-jSYIqRNcSODe2Dm9Putm12nYlJrZuuPfyJimBCcU4I5YcWObXKtomxNVZtW7fR7V5hpI4M1R9DJYU6MaQ_z_9l8w</recordid><startdate>20171003</startdate><enddate>20171003</enddate><creator>Grigoryev, P. S.</creator><creator>Ignatiev, I. V.</creator><creator>Davydov, V. G.</creator><creator>Efimov, Yu. P.</creator><creator>Eliseev, S. A.</creator><creator>Lovtcius, V. A.</creator><creator>Shapochkin, P. Yu</creator><creator>Bayer, M.</creator><general>American Physical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20171003</creationdate><title>Exciton-light coupling in (In,Ga)As/GaAs quantum wells in a longitudinal magnetic field</title><author>Grigoryev, P. S. ; Ignatiev, I. V. ; Davydov, V. G. ; Efimov, Yu. P. ; Eliseev, S. A. ; Lovtcius, V. A. ; Shapochkin, P. 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Yu</creatorcontrib><creatorcontrib>Bayer, M.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review. B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Grigoryev, P. S.</au><au>Ignatiev, I. V.</au><au>Davydov, V. G.</au><au>Efimov, Yu. P.</au><au>Eliseev, S. A.</au><au>Lovtcius, V. A.</au><au>Shapochkin, P. Yu</au><au>Bayer, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Exciton-light coupling in (In,Ga)As/GaAs quantum wells in a longitudinal magnetic field</atitle><jtitle>Physical review. B</jtitle><date>2017-10-03</date><risdate>2017</risdate><volume>96</volume><issue>15</issue><artnum>155404</artnum><issn>2469-9950</issn><eissn>2469-9969</eissn><abstract>We report on the observation of a significant increase of the radiative decay rates for exciton transitions in a wide (In,Ga)As/GaAs quantum well (L=95 nm) in magnetic fields up to 6 T applied along the growth axis of the heterostructure. The absolute values of the radiative decay rates are obtained from a quantitative analysis of resonant features in the experimentally measured reflectance spectra in the range of the optical transitions to the quantum-confined exciton states. High crystalline quality of the heterostructure allows us to observe the ground and several excited exciton transitions with the nonradiative broadening comparable to the radiative one. We employ a numerical procedure appropriate for the studied wide quantum well to model the increase of the radiative decay rate in magnetic field. The results of the modeling agree well with the experimental data.</abstract><cop>College Park</cop><pub>American Physical Society</pub><doi>10.1103/PhysRevB.96.155404</doi></addata></record> |
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| subjects | Decay rate Excitons Gallium arsenide Heterostructures Magnetic fields Mathematical models Quantitative analysis Quantum wells Reflectance |
| title | Exciton-light coupling in (In,Ga)As/GaAs quantum wells in a longitudinal magnetic field |
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