CALCULATION OF THE POINT DEFECT CONCENTRATION OF THE CATION SUBLATTICE AND HYDROXYL GROUPS IN LITHIUM NIOBATE CRYSTALS OF DIFFERENT COMPOSITION
The IR absorption spectra in the region of stretching vibrations of OH - groups of lithium niobate crystals of stoichiometric and congruent compositions are studied. The results of calculations of the OH - groups concentration, the Li / Nb ratio and the concentration of point defects NbLi and VLi co...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Russian |
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Tver State University
2020-12-01
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| Series: | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
| Subjects: | |
| Online Access: | https://physchemaspects.ru/2020/doi-10-26456-pcascnn-2020-12-200/ |
| _version_ | 1818607619772776448 |
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| author | N.A. Teplyakova N.V. Sidorov M.N. Palatnikov |
| author_facet | N.A. Teplyakova N.V. Sidorov M.N. Palatnikov |
| author_sort | N.A. Teplyakova |
| collection | DOAJ |
| description | The IR absorption spectra in the region of stretching vibrations of OH - groups of lithium niobate crystals of stoichiometric and congruent compositions are studied. The results of calculations of the OH - groups concentration, the Li / Nb ratio and the concentration of point defects NbLi and VLi coincide with the literature data. The phase diagram of lithium niobate confirms these results. It is shown that an increase in the number of free protons that contribute to conductivity can lead to reducing the optical damage and higher electrical conductivity and the rate of thermal fixation of holograms. |
| first_indexed | 2024-12-16T14:29:38Z |
| format | Article |
| id | doaj.art-5d030def193149c9ac707b9c0a89c466 |
| institution | Directory Open Access Journal |
| issn | 2226-4442 2658-4360 |
| language | Russian |
| last_indexed | 2024-12-16T14:29:38Z |
| publishDate | 2020-12-01 |
| publisher | Tver State University |
| record_format | Article |
| series | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
| spelling | doaj.art-5d030def193149c9ac707b9c0a89c4662022-12-21T22:28:16ZrusTver State UniversityФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов2226-44422658-43602020-12-011220020510.26456/pcascnn/2020.12.200CALCULATION OF THE POINT DEFECT CONCENTRATION OF THE CATION SUBLATTICE AND HYDROXYL GROUPS IN LITHIUM NIOBATE CRYSTALS OF DIFFERENT COMPOSITIONN.A. Teplyakova0N.V. Sidorov1M.N. Palatnikov2Tananaev Institute of Chemistry - Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»Tananaev Institute of Chemistry - Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»Tananaev Institute of Chemistry - Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»The IR absorption spectra in the region of stretching vibrations of OH - groups of lithium niobate crystals of stoichiometric and congruent compositions are studied. The results of calculations of the OH - groups concentration, the Li / Nb ratio and the concentration of point defects NbLi and VLi coincide with the literature data. The phase diagram of lithium niobate confirms these results. It is shown that an increase in the number of free protons that contribute to conductivity can lead to reducing the optical damage and higher electrical conductivity and the rate of thermal fixation of holograms.https://physchemaspects.ru/2020/doi-10-26456-pcascnn-2020-12-200/single crystallithium niobatedefectsir absorption spectrastretching vibrations of oh - group |
| spellingShingle | N.A. Teplyakova N.V. Sidorov M.N. Palatnikov CALCULATION OF THE POINT DEFECT CONCENTRATION OF THE CATION SUBLATTICE AND HYDROXYL GROUPS IN LITHIUM NIOBATE CRYSTALS OF DIFFERENT COMPOSITION Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов single crystal lithium niobate defects ir absorption spectra stretching vibrations of oh - group |
| title | CALCULATION OF THE POINT DEFECT CONCENTRATION OF THE CATION SUBLATTICE AND HYDROXYL GROUPS IN LITHIUM NIOBATE CRYSTALS OF DIFFERENT COMPOSITION |
| title_full | CALCULATION OF THE POINT DEFECT CONCENTRATION OF THE CATION SUBLATTICE AND HYDROXYL GROUPS IN LITHIUM NIOBATE CRYSTALS OF DIFFERENT COMPOSITION |
| title_fullStr | CALCULATION OF THE POINT DEFECT CONCENTRATION OF THE CATION SUBLATTICE AND HYDROXYL GROUPS IN LITHIUM NIOBATE CRYSTALS OF DIFFERENT COMPOSITION |
| title_full_unstemmed | CALCULATION OF THE POINT DEFECT CONCENTRATION OF THE CATION SUBLATTICE AND HYDROXYL GROUPS IN LITHIUM NIOBATE CRYSTALS OF DIFFERENT COMPOSITION |
| title_short | CALCULATION OF THE POINT DEFECT CONCENTRATION OF THE CATION SUBLATTICE AND HYDROXYL GROUPS IN LITHIUM NIOBATE CRYSTALS OF DIFFERENT COMPOSITION |
| title_sort | calculation of the point defect concentration of the cation sublattice and hydroxyl groups in lithium niobate crystals of different composition |
| topic | single crystal lithium niobate defects ir absorption spectra stretching vibrations of oh - group |
| url | https://physchemaspects.ru/2020/doi-10-26456-pcascnn-2020-12-200/ |
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