NMR and NQR investigation of the lattice dynamics in (CH₃)₂CHNH₃CdBr₃
The temperatures dependences of the Br⁷⁹ quadrupole resonance, Br⁷⁹ and proton spinlattice relaxation times have been studied in the perovskite layer structure compounds (CH₃)₂CHNH₃CdBr₃. It is shown that anomalies in the temperature behaviours of NQR frequencies and quadrupole relaxation of Br⁷⁹ an...
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| Дата: | 2005 |
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| Автори: | , , , , |
| Формат: | Стаття |
| Мова: | English |
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НТК «Інститут монокристалів» НАН України
2005
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| Назва видання: | Functional Materials |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/135260 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | NMR and NQR investigation of the lattice dynamics in (CH₃)₂CHNH₃CdBr₃ / Eu.D. Chesnokov, Z. Chapla, A.I. Ovcharenko, S.V. Pogrebnyak, I.G. Vertegel // Functional Materials. — 2005. — Т. 12, № 2. — С. 212-215. — Бібліогр.: 8 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1352602018-06-15T03:10:09Z NMR and NQR investigation of the lattice dynamics in (CH₃)₂CHNH₃CdBr₃ Chesnokov, Eu.D. Chapla, Z. Ovcharenko, A.I. Pogrebnyak, S.V. Vertegel, I.G. The temperatures dependences of the Br⁷⁹ quadrupole resonance, Br⁷⁹ and proton spinlattice relaxation times have been studied in the perovskite layer structure compounds (CH₃)₂CHNH₃CdBr₃. It is shown that anomalies in the temperature behaviours of NQR frequencies and quadrupole relaxation of Br⁷⁹ and related to the reorientation of NH₃ groups. The main mechanisms of Br⁷⁹ and proton spin relaxation as well as their correlations with motion nature of the methylammonium groups and their fragments are discussed. Приведены результаты исследований температурных зависимостей частот ядерного квадрупольного резонанса Br⁷⁹, квадрупольной спин-решеточной релаксации ядер Br⁷⁹ и протонной ЯМР релаксации в кристалле (CH₃)₂CHNH₃CdBr₃ с перовскито-подобной структурой. Показано, что аномальное температурное поведение частот ЯКР и квадрупольной релаксации ядер брома обусловлено реориентацией NH₃ групп и динамикой водородной связи N-H... Br. Обсуждаются механизмы релаксации протонов и ядер брома, а также их связь с характером движения метиламмонийных групп и их фрагментов. 2005 Article NMR and NQR investigation of the lattice dynamics in (CH₃)₂CHNH₃CdBr₃ / Eu.D. Chesnokov, Z. Chapla, A.I. Ovcharenko, S.V. Pogrebnyak, I.G. Vertegel // Functional Materials. — 2005. — Т. 12, № 2. — С. 212-215. — Бібліогр.: 8 назв. — англ. 1027-5495 http://dspace.nbuv.gov.ua/handle/123456789/135260 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 temperatures dependences of the Br⁷⁹ quadrupole resonance, Br⁷⁹ and proton spinlattice relaxation times have been studied in the perovskite layer structure compounds (CH₃)₂CHNH₃CdBr₃. It is shown that anomalies in the temperature behaviours of NQR frequencies and quadrupole relaxation of Br⁷⁹ and related to the reorientation of NH₃ groups. The main mechanisms of Br⁷⁹ and proton spin relaxation as well as their correlations with motion nature of the methylammonium groups and their fragments are discussed. |
| format |
Article |
| author |
Chesnokov, Eu.D. Chapla, Z. Ovcharenko, A.I. Pogrebnyak, S.V. Vertegel, I.G. |
| spellingShingle |
Chesnokov, Eu.D. Chapla, Z. Ovcharenko, A.I. Pogrebnyak, S.V. Vertegel, I.G. NMR and NQR investigation of the lattice dynamics in (CH₃)₂CHNH₃CdBr₃ Functional Materials |
| author_facet |
Chesnokov, Eu.D. Chapla, Z. Ovcharenko, A.I. Pogrebnyak, S.V. Vertegel, I.G. |
| author_sort |
Chesnokov, Eu.D. |
| title |
NMR and NQR investigation of the lattice dynamics in (CH₃)₂CHNH₃CdBr₃ |
| title_short |
NMR and NQR investigation of the lattice dynamics in (CH₃)₂CHNH₃CdBr₃ |
| title_full |
NMR and NQR investigation of the lattice dynamics in (CH₃)₂CHNH₃CdBr₃ |
| title_fullStr |
NMR and NQR investigation of the lattice dynamics in (CH₃)₂CHNH₃CdBr₃ |
| title_full_unstemmed |
NMR and NQR investigation of the lattice dynamics in (CH₃)₂CHNH₃CdBr₃ |
| title_sort |
nmr and nqr investigation of the lattice dynamics in (ch₃)₂chnh₃cdbr₃ |
| publisher |
НТК «Інститут монокристалів» НАН України |
| publishDate |
2005 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/135260 |
| citation_txt |
NMR and NQR investigation of the lattice dynamics in (CH₃)₂CHNH₃CdBr₃ / Eu.D. Chesnokov, Z. Chapla, A.I. Ovcharenko, S.V. Pogrebnyak, I.G. Vertegel // Functional Materials. — 2005. — Т. 12, № 2. — С. 212-215. — Бібліогр.: 8 назв. — англ. |
| series |
Functional Materials |
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2023-10-18T21:11:17Z |
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2023-10-18T21:11:17Z |
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