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 thПоказать полностьюe 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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