Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2019

Аннотация: We report a Raman scattering study of single-crystalline homometallic oxyborate Mn2OBO3, a compound realizing a one-dimensional ribbon-structure. Phonon excitations as a function of temperature and light polarization are compared to lattice dynamical calculations, giving evidence for a strong coupling between lattice and magnetic degrees of freedom. Furthermore, a broader feature with a distinct structure emerges at low temperatures. Based on our theoretical analysis, we assign this signal to specific two-magnon scattering processes related to high energy flat-band magnon branches.

Журнал: Low Temperature Physics

Выпуск журнала: Т. 45, № 9

Номера страниц: 1223-1230

ISSN журнала: 1063777X

Издатель: American Institute of Physics

• Gnezdilov V. (Institute for Condensed Matter Physics,TU Braunschweig)
• Kurnosov V. (B. Verkin Inst. for Low Temp. Physics and Engineering,National Academy of Sciences of Ukraine)
• Wulferding D. (Institute for Condensed Matter Physics,TU Braunschweig)
• Lemmens P. (Institute for Condensed Matter Physics,TU Braunschweig)
• Pashkevich Y. (O.O. Galkin Donetsk Inst. for Physics and Engineering,National Academy of Sciences of Ukraine)
• Zhuravlev O.V. (O.O. Galkin Donetsk Inst. for Physics and Engineering,National Academy of Sciences of Ukraine)
• Kazak N.V. (Kirensky Institute of Physics,Federal Research Center KSC SB,RAS)
• Knyazev Y.V. (Kirensky Institute of Physics,Federal Research Center KSC SB,RAS)
• Ovchinnikov S.G. (School of Engineering Physics and Radio Electronics,Siberian Federal University)

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