To the origin of vibrational models in Raman spectra of Li₂B₄O₇ single crystals
The Raman spectra investigations have been reported at room temperature in the 100-1200 cm⁻¹ range for Li₂B₄O₇ single crystals with natural Li and B isotopic distribution and for 4 types of single crystals enriched maximally in ⁷Li, ⁶Li, ¹⁰B and ¹¹B isotopes. It has been found that in spectra of Li₂...
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НТК «Інститут монокристалів» НАН України
2006
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Zitieren: | To the origin of vibrational models in Raman spectra of Li₂B₄O₇ single crystals / Ya.V. Burak, V.T. Adamin, I.M. Teslyuk // Functional Materials. — 2006. — Т. 13, № 4. — С. 591-595. — Бібліогр.: 18 назв. — англ. |
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irk-123456789-1350742018-06-15T03:06:40Z To the origin of vibrational models in Raman spectra of Li₂B₄O₇ single crystals Burak, Ya.V. Adamin, V.T. Teslyuk, I.M. The Raman spectra investigations have been reported at room temperature in the 100-1200 cm⁻¹ range for Li₂B₄O₇ single crystals with natural Li and B isotopic distribution and for 4 types of single crystals enriched maximally in ⁷Li, ⁶Li, ¹⁰B and ¹¹B isotopes. It has been found that in spectra of Li₂B₄O₇ single crystals with natural isotopic distribution, no isotopic splitting takes place; this fact confirms the essentially single-mode behavior of those crystals. The specific modes are subdivided into 5 groups according to their frequency changes: (1) "regular" modes, where the frequency increases at decreasing isotope atomic mass, and vice versa; (2) modes, where the frequency remains insensitive to substitution of isotope; (3) the modes with anomalous behavior, where the frequency decreases at decreasing isotope mass, and vice versa; (4) the modes with frequency changing chaotically at substitution of isotopes; (5) "random" modes observed only in some samples. The origin of the vibrational modes in the Raman spectra of Li₂B₄O₇ single crystals is defined in more detail. 2006 Article To the origin of vibrational models in Raman spectra of Li₂B₄O₇ single crystals / Ya.V. Burak, V.T. Adamin, I.M. Teslyuk // Functional Materials. — 2006. — Т. 13, № 4. — С. 591-595. — Бібліогр.: 18 назв. — англ. 1027-5495 http://dspace.nbuv.gov.ua/handle/123456789/135074 en Functional Materials НТК «Інститут монокристалів» НАН України |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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The Raman spectra investigations have been reported at room temperature in the 100-1200 cm⁻¹ range for Li₂B₄O₇ single crystals with natural Li and B isotopic distribution and for 4 types of single crystals enriched maximally in ⁷Li, ⁶Li, ¹⁰B and ¹¹B isotopes. It has been found that in spectra of Li₂B₄O₇ single crystals with natural isotopic distribution, no isotopic splitting takes place; this fact confirms the essentially single-mode behavior of those crystals. The specific modes are subdivided into 5 groups according to their frequency changes: (1) "regular" modes, where the frequency increases at decreasing isotope atomic mass, and vice versa; (2) modes, where the frequency remains insensitive to substitution of isotope; (3) the modes with anomalous behavior, where the frequency decreases at decreasing isotope mass, and vice versa; (4) the modes with frequency changing chaotically at substitution of isotopes; (5) "random" modes observed only in some samples. The origin of the vibrational modes in the Raman spectra of Li₂B₄O₇ single crystals is defined in more detail. |
format |
Article |
author |
Burak, Ya.V. Adamin, V.T. Teslyuk, I.M. |
spellingShingle |
Burak, Ya.V. Adamin, V.T. Teslyuk, I.M. To the origin of vibrational models in Raman spectra of Li₂B₄O₇ single crystals Functional Materials |
author_facet |
Burak, Ya.V. Adamin, V.T. Teslyuk, I.M. |
author_sort |
Burak, Ya.V. |
title |
To the origin of vibrational models in Raman spectra of Li₂B₄O₇ single crystals |
title_short |
To the origin of vibrational models in Raman spectra of Li₂B₄O₇ single crystals |
title_full |
To the origin of vibrational models in Raman spectra of Li₂B₄O₇ single crystals |
title_fullStr |
To the origin of vibrational models in Raman spectra of Li₂B₄O₇ single crystals |
title_full_unstemmed |
To the origin of vibrational models in Raman spectra of Li₂B₄O₇ single crystals |
title_sort |
to the origin of vibrational models in raman spectra of li₂b₄o₇ single crystals |
publisher |
НТК «Інститут монокристалів» НАН України |
publishDate |
2006 |
url |
http://dspace.nbuv.gov.ua/handle/123456789/135074 |
citation_txt |
To the origin of vibrational models in Raman spectra of Li₂B₄O₇ single crystals / Ya.V. Burak, V.T. Adamin, I.M. Teslyuk // Functional Materials. — 2006. — Т. 13, № 4. — С. 591-595. — Бібліогр.: 18 назв. — англ. |
series |
Functional Materials |
work_keys_str_mv |
AT burakyav totheoriginofvibrationalmodelsinramanspectraofli2b4o7singlecrystals AT adaminvt totheoriginofvibrationalmodelsinramanspectraofli2b4o7singlecrystals AT teslyukim totheoriginofvibrationalmodelsinramanspectraofli2b4o7singlecrystals |
first_indexed |
2025-07-09T22:39:05Z |
last_indexed |
2025-07-09T22:39:05Z |
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fulltext |
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