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

• Published in: Физика низких температур
• Date: 2017
• Main Authors: Kurnosov, V., Gnezdilov, V., Lemmens, P., Pashkevich, Y., Bera, A.K., Islam, A.T.M.N., Lake, B.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2017
• Subjects: Низкотемпературная оптическая спектроскопия
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/175361
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: 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.

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...