EPR and dielectric spectroscopy of reorienting Cr³⁺-Li⁺ pair centres in Li₂Ge₇O₁₅ crystal
Earlier it has been shown that in the lithium heptagermanate Li₂Ge₇O₁₅ structure the chromium doping ions substitute the germanium hosts and create Cr³⁺-Li⁺ pair centres. In the paper EPR and dielectric spectra of Li₂Ge₇O₁₅:Cr³⁺ crystal are studied in the temperature range 300 ÷ 500 K. The therma...
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| Published in: | Condensed Matter Physics |
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| Date: | 2007 |
| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Published: |
Інститут фізики конденсованих систем НАН України
2007
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/118070 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | EPR and dielectric spectroscopy of reorienting Cr³⁺-Li⁺ pair centres in Li₂Ge₇O₁₅ crystal / M.D. Volnianskii, M.P. Trubitsyn, Yahia A.H. Obaidat // Condensed Matter Physics. — 2007. — Т. 10, № 1(49). — С. 75-78. — Бібліогр.: 9 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | Earlier it has been shown that in the lithium heptagermanate Li₂Ge₇O₁₅ structure the chromium doping ions
substitute the germanium hosts and create Cr³⁺-Li⁺ pair centres. In the paper EPR and dielectric spectra
of Li₂Ge₇O₁₅:Cr³⁺ crystal are studied in the temperature range 300 ÷ 500 K. The thermally activated reorientation
of Cr³⁺-Li⁺ pairs has been detected through EPR line width broadening and dielectric relaxation.
Ранiше було показано, що у структурi кристалiв гептагерманату лiтiю Li₂Ge₇O₁₅ домiшковi iони хрому замiщують iони германiю i створюють Cr³⁺-Li⁺ парнi центри. У роботi ЕПР i дiелектричнi спектри кристалiв Li₂Ge₇O₁₅: Cr³⁺ дослiдженi у температурному дiапазонi 300 ÷ 500 K. Вперше термiчно активована реорiєнтацiя дипольних моментiв Cr³⁺-Li⁺ пар зареєстрована шляхом вимiрювання поширення ЕПР лiнiй i дiелектричної релаксацiї.
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| ISSN: | 1607-324X |