Structural phase transition in two-dimensional tetramer-cuprate Na₅RbCu₄(AsO₄)₄Cl₂

• Published in: Физика низких температур
• Date: 2007
• Main Authors: Gnezdilov, V., Bedarev, V., Pashkevich, Yu., Lemmens, P., Zvyagin, S., Gnatchenko, S., Pashchenko, M., Mo, X., Queen, W., Hwu, S.J.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2007
• Subjects: Низкотемпеpатуpный магнетизм
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/120923
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Structural phase transition in two-dimensional tetramer-cuprate Na₅RbCu₄(AsO₄)₄Cl₂ / V. Gnezdilov, V. Bedarev, Yu. Pashkevich, P. Lemmens, S. Zvyagin, S. Gnatchenko, M. Pashchenko, X. Mo, W. Queen, S.J. Hwu // Физика низких температур. — 2007. — Т. 33, № 08. — С. 897–901. — Бібліогр.: 6 назв. — англ.

Using Raman scattering and optical birefringence we have investigated a low-temperature phase transition in single crystal of the two-dimensional Na₅RbCu₄(AsO₄)₄Cl₂. Phonon anomalies point to a first order nature of the transition. The observed transition is most probably related to a order-disord...