Ultrafast core-to-core luminescence in BaF2 - LaF3 single crystals
Abstract This study investigates the mechanisms underlying the ultrafast cross-luminescence observed in BaF2 crystals doped with LaF3. We identified an ultrafast luminescent component with a decay time of approximately 150 ps, which emerges under excitation energies exceeding 24 eV as a novel radiat...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-07-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-025-11505-w |
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| author | Roman Shendrik Evgeny Radzhabov Alexandra Myasnikova Viktorija Pankratova Anatolijs Šarakovskis Alexander Nepomnyashchikh Alexander Bogdanov Veronika Gavrilenko Ekaterina Kaneva Dmitry Sofich Tatiana Garmysheva Vladimir Pankratov |
| author_facet | Roman Shendrik Evgeny Radzhabov Alexandra Myasnikova Viktorija Pankratova Anatolijs Šarakovskis Alexander Nepomnyashchikh Alexander Bogdanov Veronika Gavrilenko Ekaterina Kaneva Dmitry Sofich Tatiana Garmysheva Vladimir Pankratov |
| author_sort | Roman Shendrik |
| collection | DOAJ |
| description | Abstract This study investigates the mechanisms underlying the ultrafast cross-luminescence observed in BaF2 crystals doped with LaF3. We identified an ultrafast luminescent component with a decay time of approximately 150 ps, which emerges under excitation energies exceeding 24 eV as a novel radiative recombination process between electrons in the 5p core band of Ba2+ and holes in the 5p core band of La3+. Ab initio calculations supported this hypothesis, showing that the energy levels of the core bands facilitate such transitions. The findings indicated that BaF2-LaF3 scintillators hold significant promise for the detection of ultrafast processes in high-energy physics and medical applications. |
| format | Article |
| id | doaj-art-59d0b4e6fa97472ba7d75efae8acec6c |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-59d0b4e6fa97472ba7d75efae8acec6c2025-08-20T03:42:53ZengNature PortfolioScientific Reports2045-23222025-07-0115111010.1038/s41598-025-11505-wUltrafast core-to-core luminescence in BaF2 - LaF3 single crystalsRoman Shendrik0Evgeny Radzhabov1Alexandra Myasnikova2Viktorija Pankratova3Anatolijs Šarakovskis4Alexander Nepomnyashchikh5Alexander Bogdanov6Veronika Gavrilenko7Ekaterina Kaneva8Dmitry Sofich9Tatiana Garmysheva10Vladimir Pankratov11Vinogradov Institute of GeochemistryVinogradov Institute of GeochemistryVinogradov Institute of GeochemistryInstitute of Solid State Physics, University of LatviaInstitute of Solid State Physics, University of LatviaVinogradov Institute of GeochemistryVinogradov Institute of GeochemistryVinogradov Institute of GeochemistryVinogradov Institute of GeochemistryVinogradov Institute of GeochemistryVinogradov Institute of GeochemistryInstitute of Solid State Physics, University of LatviaAbstract This study investigates the mechanisms underlying the ultrafast cross-luminescence observed in BaF2 crystals doped with LaF3. We identified an ultrafast luminescent component with a decay time of approximately 150 ps, which emerges under excitation energies exceeding 24 eV as a novel radiative recombination process between electrons in the 5p core band of Ba2+ and holes in the 5p core band of La3+. Ab initio calculations supported this hypothesis, showing that the energy levels of the core bands facilitate such transitions. The findings indicated that BaF2-LaF3 scintillators hold significant promise for the detection of ultrafast processes in high-energy physics and medical applications.https://doi.org/10.1038/s41598-025-11505-w |
| spellingShingle | Roman Shendrik Evgeny Radzhabov Alexandra Myasnikova Viktorija Pankratova Anatolijs Šarakovskis Alexander Nepomnyashchikh Alexander Bogdanov Veronika Gavrilenko Ekaterina Kaneva Dmitry Sofich Tatiana Garmysheva Vladimir Pankratov Ultrafast core-to-core luminescence in BaF2 - LaF3 single crystals Scientific Reports |
| title | Ultrafast core-to-core luminescence in BaF2 - LaF3 single crystals |
| title_full | Ultrafast core-to-core luminescence in BaF2 - LaF3 single crystals |
| title_fullStr | Ultrafast core-to-core luminescence in BaF2 - LaF3 single crystals |
| title_full_unstemmed | Ultrafast core-to-core luminescence in BaF2 - LaF3 single crystals |
| title_short | Ultrafast core-to-core luminescence in BaF2 - LaF3 single crystals |
| title_sort | ultrafast core to core luminescence in baf2 laf3 single crystals |
| url | https://doi.org/10.1038/s41598-025-11505-w |
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