Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1080/00150193.2020.1722014

Ключевые слова: crystal with huntite structure, low temperatures, magnetic ordering, phonon–magnon interaction, soft modes

Аннотация: The Raman spectra of the TbFe2.5Ga0.5(BO3)4 single crystal in the temperature range from 8 to 400 K have been observed. The condensation and restoration of the soft modes have been found. The soft modes are associated with the structural phase transition from the R32 phase to the P3121 phase. The behavior of the hard modes confirms the structural phase transition close to the tricritical point. The temperature of the structural phase transition T1 = 33 K is established. © 2020, © 2020 Taylor & Francis Group, LLC.

Журнал: Ferroelectrics

Выпуск журнала: Vol. 559, Is. 1

Номера страниц: 128-134

ISSN журнала: 00150193

• Krylov A.S. (FRC KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia)
• Gudim I.A. (FRC KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia)
• Krylova S.N. (FRC KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia)
• Krylov A.A. (Moscow Inst Phys & Technol, Dolgoprudnyi, Russia)
• Vtyurin A.N. (FRC KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)

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