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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Datum:2006
Hauptverfasser: Burak, Ya.V., Adamin, V.T., Teslyuk, I.M.
Format: Artikel
Sprache:English
Veröffentlicht: НТК «Інститут монокристалів» НАН України 2006
Schriftenreihe:Functional Materials
Online Zugang:http://dspace.nbuv.gov.ua/handle/123456789/135074
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
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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spelling 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
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description 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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