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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Datum:2005
Hauptverfasser: Chesnokov, Eu.D., Chapla, Z., Ovcharenko, A.I., Pogrebnyak, S.V., Vertegel, I.G.
Format: Artikel
Sprache:English
Veröffentlicht: НТК «Інститут монокристалів» НАН України 2005
Schriftenreihe:Functional Materials
Online Zugang:http://dspace.nbuv.gov.ua/handle/123456789/135260
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Zitieren: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.

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spelling 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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AT chaplaz nmrandnqrinvestigationofthelatticedynamicsinch32chnh3cdbr3
AT ovcharenkoai nmrandnqrinvestigationofthelatticedynamicsinch32chnh3cdbr3
AT pogrebnyaksv nmrandnqrinvestigationofthelatticedynamicsinch32chnh3cdbr3
AT vertegelig nmrandnqrinvestigationofthelatticedynamicsinch32chnh3cdbr3
first_indexed 2025-07-09T22:56:34Z
last_indexed 2025-07-09T22:56:34Z
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