Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1080/00150193.2020.1713334

Ключевые слова: Soft modes, low temperatures, phonon-magnon interaction, magnetic ordering, huntite

Аннотация: The condensation of two soft modes has been found when studying the Raman spectra of the solid solution HoFe2.5Ga0.5(BO3)(4) in the temperature range from 7 to 350 K. The first high-temperature soft mode is associated with the structural phase transition from the R32 phase to the P3(1)21 phase. The second soft mode is related to the reveal of the phonon-magnon interaction during magnetic ordering in the crystal. The temperatures of the structural phase transition T-1 = 266 K and the magnetic phase transition T-2 = 28 K are established. Experimentally interaction between the structural phase transition order parameter fluctuations and the magnetic order parameter fluctuations was found.

Журнал: FERROELECTRICS

Выпуск журнала: Vol. 556, Is. 1

Номера страниц: 16-22

Место издания: ABINGDON

Издатель: TAYLOR & FRANCIS LTD

• Krylov Alexander (RAS, Kirensky Inst Phys, FRC, KSC,SB, Krasnoyarsk, Russia)
• Krylova Svetlana (RAS, Kirensky Inst Phys, FRC, KSC,SB, Krasnoyarsk, Russia)
• Gudim Irina (RAS, Kirensky Inst Phys, FRC, KSC,SB, Krasnoyarsk, Russia)
• Vtyurin Alexander (RAS, Kirensky Inst Phys, FRC, KSC,SB, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)

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