Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈

Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈

Vibrational Raman spectra of a single crystal of the coupled Haldane chain compound SrNi₂V₂O₈ with uniaxial anisotropy were investigated in the 10–1000 cm⁻¹ frequency range at temperatures 7–300 K. No structural phase transition was observed. The number of phonon lines observed in the experiment and...

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Бібліографічні деталі
Дата:2017
Автори: Kurnosov, V., Gnezdilov, V., Lemmens, P., Pashkevich, Y., Bera, A.K., Islam, A.T.M.N., Lake, B.
Формат: Стаття
Мова:English
Опубліковано: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2017
Назва видання:Физика низких температур
Теми:
Низкотемпературная оптическая спектроскопия
Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/175361
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈ / V. Kurnosov, V. Gnezdilov, P. Lemmens, Y. Pashkevich, A.K. Bera, A.T.M.N. Islam, B. Lake // Физика низких температур. — 2017. — Т. 43, № 12. — С. 1761-1772. — Бібліогр.: 36 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
id irk-123456789-175361
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spelling irk-123456789-1753612021-02-05T22:00:50Z Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈ Kurnosov, V. Gnezdilov, V. Lemmens, P. Pashkevich, Y. Bera, A.K. Islam, A.T.M.N. Lake, B. Низкотемпературная оптическая спектроскопия Vibrational Raman spectra of a single crystal of the coupled Haldane chain compound SrNi₂V₂O₈ with uniaxial anisotropy were investigated in the 10–1000 cm⁻¹ frequency range at temperatures 7–300 K. No structural phase transition was observed. The number of phonon lines observed in the experiment and their intensity were analyzed on the basis of the local symmetry considerations of different structural complexes. This approach was successful in explaining the discrepancy between the numbers of expected and experimentally observed phonon lines. Closeness of a real arrangement of some structural units to higher symmetry than the Wyckoff position results in strong interferential quenching of a number of Raman lines in the spectra. 2017 Article Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈ / V. Kurnosov, V. Gnezdilov, P. Lemmens, Y. Pashkevich, A.K. Bera, A.T.M.N. Islam, B. Lake // Физика низких температур. — 2017. — Т. 43, № 12. — С. 1761-1772. — Бібліогр.: 36 назв. — англ. 0132-6414 PACS: 78.30.–j, 63.20.–e http://dspace.nbuv.gov.ua/handle/123456789/175361 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Низкотемпературная оптическая спектроскопия
Низкотемпературная оптическая спектроскопия
spellingShingle Низкотемпературная оптическая спектроскопия
Низкотемпературная оптическая спектроскопия
Kurnosov, V.
Gnezdilov, V.
Lemmens, P.
Pashkevich, Y.
Bera, A.K.
Islam, A.T.M.N.
Lake, B.
Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈
Физика низких температур
description Vibrational Raman spectra of a single crystal of the coupled Haldane chain compound SrNi₂V₂O₈ with uniaxial anisotropy were investigated in the 10–1000 cm⁻¹ frequency range at temperatures 7–300 K. No structural phase transition was observed. The number of phonon lines observed in the experiment and their intensity were analyzed on the basis of the local symmetry considerations of different structural complexes. This approach was successful in explaining the discrepancy between the numbers of expected and experimentally observed phonon lines. Closeness of a real arrangement of some structural units to higher symmetry than the Wyckoff position results in strong interferential quenching of a number of Raman lines in the spectra.
format Article
author Kurnosov, V.
Gnezdilov, V.
Lemmens, P.
Pashkevich, Y.
Bera, A.K.
Islam, A.T.M.N.
Lake, B.
author_facet Kurnosov, V.
Gnezdilov, V.
Lemmens, P.
Pashkevich, Y.
Bera, A.K.
Islam, A.T.M.N.
Lake, B.
author_sort Kurnosov, V.
title Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈
title_short Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈
title_full Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈
title_fullStr Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈
title_full_unstemmed Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈
title_sort phonon excitations in the quasi-one-dimensional haldane phase of srni₂v₂o₈
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
publishDate 2017
topic_facet Низкотемпературная оптическая спектроскопия
url http://dspace.nbuv.gov.ua/handle/123456789/175361
citation_txt Phonon excitations in the quasi-one-dimensional Haldane phase of SrNi₂V₂O₈ / V. Kurnosov, V. Gnezdilov, P. Lemmens, Y. Pashkevich, A.K. Bera, A.T.M.N. Islam, B. Lake // Физика низких температур. — 2017. — Т. 43, № 12. — С. 1761-1772. — Бібліогр.: 36 назв. — англ.
series Физика низких температур
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first_indexed 2023-10-18T22:38:40Z
last_indexed 2023-10-18T22:38:40Z
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