Optical Characteristics of MgAl2O4 Single Crystals Irradiated by 220 MeV Xe Ions
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
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Optical Characteristics of MgAl2O4 Single Crystals Irradiated by 220 MeV Xe Ions
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| Автор |
Akilbekov, A.
Kiryakov, A. Baubekova, G. Aralbayeva, G. Dauletbekova, A. Akylbekova, A. Ospanova, Z. Popov, A. I. |
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| Тематика |
ABSORPTION SPECTRA
RADIATION DEFECTS RAMAN SPECTRA SINGLE CRYSTALS MGAL2O4 SWIFT HEAVY IONS ABSORPTION SPECTRA ABSORPTION SPECTROSCOPY COLOR CENTERS CRYSTALLINITY HEAVY IONS LIGHT ABSORPTION MAGNESIUM COMPOUNDS RAMAN SPECTROSCOPY SINGLE CRYSTALS SODIUM ALUMINATE SPECTROSCOPIC ANALYSIS XENON COLOUR CENTERS FISSION FRAGMENT ION PENETRATION MAGNESIUM ALUMINATE SPINEL OPTICAL ABSORPTION SPECTRUM OPTICAL CHARACTERISTICS RADIATION DEFECTS SINGLE CRYSTAL MGAL2O4 SWIFT HEAVY IONS TRANSMISSION SPECTRUMS RAMAN SCATTERING |
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| Описание |
In In this study, the optical properties of magnesium-aluminate spinel were examined after being irradiated with 220 MeV Xe ions. The research aimed to simulate the impact of nuclear fuel fission fragments on the material. The following measurements were taken during the experiments: transmission spectra in the IR region (190–7000) nm, optical absorption spectra in the range (1.2–6.5) eV, and Raman spectra were measured along the depth of ion penetration from the surface to 30 µm. A peak with a broad shape at approximately 5.3 eV can be observed in the optical absorption spectrum of irradiated spinel crystals. This band is linked to the electronic color centers of F+ and F. Meanwhile, the band with a maximum at ~(3–4) eV is attributed to hole color centers. Apart from the typical Raman modes of an unirradiated crystal, additional modes, A1g* (720 cm−1), and Eg* (385 cm−1), manifested mainly as an asymmetric shoulder of the main Eg mode, are also observed. In addition, the Raman spectroscopy method showed that the greatest disordering of crystallinity occurs in the near-surface layer up to 4 μm thick. At the same time, Raman scattering spectroscopy is sensitive to structural changes almost up to the simulated value of the modified layer, which is an excellent express method for certifying the structural properties of crystals modified by swift heavy ions. © 2023 by the authors.
739508; AR09259669; Ministry of Education and Science of the Republic of Kazakhstan: LZP-2018/1-0214, ZP-2018/1-0214 The work was carried out within the framework of the grant project AR09259669 of the Ministry of Higher Education and Science of the Republic of Kazakhstan. A.K. thanks the Center for Collective Use Geoanalyst IGG Ural Branch RAS for obtaining Raman spectra of the surface layer. A.I.P. is also thankful for financial support from the Latvian Project ZP-2018/1-0214. In addition, A.I.P. is also thankful for financial support from the Latvian Project LZP-2018/1-0214. In addition, A.I.P. thanks the Institute of Solid State Physics, University of Latvia (ISSP UL). ISSP UL as the Centre of Excellence has received funding from the European Union’s Horizon 2020 Framework Program H2020-WIDESPREAD01-2016-2017-Teaming Phase2 under grant agreement No. 739508, project CAMART2. This research was funded by MHES of the Republic of Kazakhstan, AR09259669. |
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| Дата |
2024-04-05T16:34:29Z
2024-04-05T16:34:29Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Akilbekov, A, Kiryakov, A, Baubekova, G, Aralbayeva, G, Dauletbekova, A, Akylbekova, A, Ospanova, Z & Popov, AI 2023, 'Optical Characteristics of MgAl2O4 Single Crystals Irradiated by 220 MeV Xe Ions', Materials, Том. 16, № 19, 6414. https://doi.org/10.3390/ma16196414
Akilbekov, A., Kiryakov, A., Baubekova, G., Aralbayeva, G., Dauletbekova, A., Akylbekova, A., Ospanova, Z., & Popov, A. I. (2023). Optical Characteristics of MgAl2O4 Single Crystals Irradiated by 220 MeV Xe Ions. Materials, 16(19), [6414]. https://doi.org/10.3390/ma16196414 1996-1944 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85174036728&doi=10.3390%2fma16196414&partnerID=40&md5=9394f0556a7a8fe3668da6f2dff17716 https://www.mdpi.com/1996-1944/16/19/6414/pdf?version=1695725896 http://elar.urfu.ru/handle/10995/130856 10.3390/ma16196414 85174036728 001086250500001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Multidisciplinary Digital Publishing Institute (MDPI)
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| Источник |
Materials
Materials |
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