Тип публикации: статья из журнала

Год издания: 2023

Идентификатор DOI: 10.1134/s0030400x23070081

Ключевые слова: raman spectroscopy, temperature dependence, soft modes, ferroborates, phase diagramm, optics, lasers, photonics, optical devices

Аннотация: The Raman spectra of four crystals of TbFe_3–<i>x</i>Ga_<i>x</i>(BO₃)₄ solid solutions (<i>x</i> from 0 to 0.54) were studied in the temperature range from 8 to 350 K. The temperatures of structural phase transitions were determined. The observed spectral behavior is characteristic to condensation and restoration of soft modes. Soft modes are associated with a structural phase transition from the <i>R</i>32 phase to the <i>P</i>3₁21 phase. The Compositions-Temperature phase diagram was constructed.

Журнал: Optics and Spectroscopy

Выпуск журнала: Т.131, №9

Номера страниц: 840-848

ISSN журнала: 0030400X

Место издания: Москва

Издатель: Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд)

• Krylov A. S. (Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences)
• Vtyurin A. N. (Siberian Federal University)
• Gudim I. A. (Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences)
• Nemtsev I. V. (Federal Research Center KSC SB, Russian Academy of Sciences, “Krasnoyarsk Scientific Center of the Siberian Branch of RAS”)
• Krylova S. N. (Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences)

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