Magneto-optics of excitons interacting with magnetic ions in CdSe/CdMnS colloidal nanoplatelets
Excitons in diluted magnetic semiconductors represent excellent probes for studying the magnetic properties of these materials. Various magneto-optical effects, which depend sensitively on the exchange interaction of the excitons with the localized spins of the magnetic ions can be used for probing....
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Online Access: | https://hdl.handle.net/10356/148458 |
| _version_ | 1811679396756455424 |
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| author | Shornikova, Elena V. Yakovlev, Dmitri R. Tolmachev, Danil O. Ivanov, Vitalii Yu Kalitukha, Ina V. Sapega, Victor F. Kudlacik, Dennis Kusrayev, Yuri G. Golovatenko, Aleksandr A. Shendre, Sushant Delikanli, Savas Demir, Hilmi Volkan Bayer, Manfred |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Shornikova, Elena V. Yakovlev, Dmitri R. Tolmachev, Danil O. Ivanov, Vitalii Yu Kalitukha, Ina V. Sapega, Victor F. Kudlacik, Dennis Kusrayev, Yuri G. Golovatenko, Aleksandr A. Shendre, Sushant Delikanli, Savas Demir, Hilmi Volkan Bayer, Manfred |
| author_sort | Shornikova, Elena V. |
| collection | NTU |
| description | Excitons in diluted magnetic semiconductors represent excellent probes for studying the magnetic properties of these materials. Various magneto-optical effects, which depend sensitively on the exchange interaction of the excitons with the localized spins of the magnetic ions can be used for probing. Here, we study core/shell CdSe/(Cd,Mn)S colloidal nanoplatelets hosting diluted magnetic semiconductor layers. The inclusion of the magnetic Mn2+ ions is evidenced by three magneto-optical techniques using high magnetic fields up to 15 T: polarized photoluminescence, optically detected magnetic resonance, and spin-flip Raman scattering. We show that the holes in the excitons play the dominant role in exchange interaction with magnetic ions. We suggest and test an approach for evaluation of the Mn2+ concentration based on the spin-lattice relaxation dynamics of the Mn2+ spin system. |
| first_indexed | 2024-10-01T03:08:30Z |
| format | Journal Article |
| id | ntu-10356/148458 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:08:30Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1484582021-05-07T07:05:07Z Magneto-optics of excitons interacting with magnetic ions in CdSe/CdMnS colloidal nanoplatelets Shornikova, Elena V. Yakovlev, Dmitri R. Tolmachev, Danil O. Ivanov, Vitalii Yu Kalitukha, Ina V. Sapega, Victor F. Kudlacik, Dennis Kusrayev, Yuri G. Golovatenko, Aleksandr A. Shendre, Sushant Delikanli, Savas Demir, Hilmi Volkan Bayer, Manfred School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences LUMINOUS! Centre of Excellence for Semiconductor Lighting & Displays Science::Physics Excitons Ions Excitons in diluted magnetic semiconductors represent excellent probes for studying the magnetic properties of these materials. Various magneto-optical effects, which depend sensitively on the exchange interaction of the excitons with the localized spins of the magnetic ions can be used for probing. Here, we study core/shell CdSe/(Cd,Mn)S colloidal nanoplatelets hosting diluted magnetic semiconductor layers. The inclusion of the magnetic Mn2+ ions is evidenced by three magneto-optical techniques using high magnetic fields up to 15 T: polarized photoluminescence, optically detected magnetic resonance, and spin-flip Raman scattering. We show that the holes in the excitons play the dominant role in exchange interaction with magnetic ions. We suggest and test an approach for evaluation of the Mn2+ concentration based on the spin-lattice relaxation dynamics of the Mn2+ spin system. National Research Foundation (NRF) Accepted version This work was supported by the Deutsche Forschungsgemeinschaft through the International Collaborative Research Center TRR 160 (Projects B1, B2, and C7) and by the Russian Foundation for Basic Research (Grant No. 19- 52-12064 NNIO-a). D.R.Y. acknowledges the partial support of the Russian Science Foundation (Project No. 20-42-01008). S.S., S.D. and H.V.D. acknowledge partial support from the Singapore National Research Foundation under NRF–NRFI2016–08. A.A.G. acknowledges support of the Grants Council of the President of the Russian Federation. V.Yu.I. acknowledges support of the Polish National Science Center (Grant No. 2018/30/M/ST3/00276). H.V.D. gratefully acknowledges support from TUBA. 2021-05-07T07:05:07Z 2021-05-07T07:05:07Z 2020 Journal Article Shornikova, E. V., Yakovlev, D. R., Tolmachev, D. O., Ivanov, V. Y., Kalitukha, I. V., Sapega, V. F., Kudlacik, D., Kusrayev, Y. G., Golovatenko, A. A., Shendre, S., Delikanli, S., Demir, H. V. & Bayer, M. (2020). Magneto-optics of excitons interacting with magnetic ions in CdSe/CdMnS colloidal nanoplatelets. ACS Nano, 14(7), 9032-9041. https://dx.doi.org/10.1021/acsnano.0c04048 1936-0851 0000-0002-6866-9013 0000-0001-7349-2745 0000-0002-7098-8515 0000-0002-4651-8476 0000-0001-5473-8383 0000-0003-2248-3157 0000-0002-0613-8014 0000-0003-1793-112X 0000-0002-0893-5949 https://hdl.handle.net/10356/148458 10.1021/acsnano.0c04048 32585089 2-s2.0-85089711957 7 14 9032 9041 en ACS Nano This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Nano, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsnano.0c04048 application/pdf |
| spellingShingle | Science::Physics Excitons Ions Shornikova, Elena V. Yakovlev, Dmitri R. Tolmachev, Danil O. Ivanov, Vitalii Yu Kalitukha, Ina V. Sapega, Victor F. Kudlacik, Dennis Kusrayev, Yuri G. Golovatenko, Aleksandr A. Shendre, Sushant Delikanli, Savas Demir, Hilmi Volkan Bayer, Manfred Magneto-optics of excitons interacting with magnetic ions in CdSe/CdMnS colloidal nanoplatelets |
| title | Magneto-optics of excitons interacting with magnetic ions in CdSe/CdMnS colloidal nanoplatelets |
| title_full | Magneto-optics of excitons interacting with magnetic ions in CdSe/CdMnS colloidal nanoplatelets |
| title_fullStr | Magneto-optics of excitons interacting with magnetic ions in CdSe/CdMnS colloidal nanoplatelets |
| title_full_unstemmed | Magneto-optics of excitons interacting with magnetic ions in CdSe/CdMnS colloidal nanoplatelets |
| title_short | Magneto-optics of excitons interacting with magnetic ions in CdSe/CdMnS colloidal nanoplatelets |
| title_sort | magneto optics of excitons interacting with magnetic ions in cdse cdmns colloidal nanoplatelets |
| topic | Science::Physics Excitons Ions |
| url | https://hdl.handle.net/10356/148458 |
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