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Soft modes in HoFe2.5Ga0.5(BO3)4 solid solution / A. Krylov, S. Krylova, I. Gudim, A. Vtyurin // Ferroelectrics. - 2020. - Vol. 556, Is. 1. - P. 16-22, DOI 10.1080/00150193.2020.1713334. - Cited References: 14. - This work was supported by the Russian Foundation for Basic Research Grant No 1802-00754.
. - ISSN 0015-0193. - ISSN 1563-5112РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
RAMAN-SCATTERING
SPECTRA
HO1-XNDXFE3(BO3)(4)
Кл.слова (ненормированные):
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 P3121 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 T1 = 266 K and the magnetic phase transition T2 = 28 K are established. Experimentally interaction between the structural phase transition order parameter fluctuations and the magnetic order parameter fluctuations was found.
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Держатели документа:
RAS, Kirensky Inst Phys, FRC, KSC,SB, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Krylova, S. N.; Крылова, Светлана Николаевна; Gudim, I. A.; Гудим, Ирина Анатольевна; Vtyurin, A. N.; Втюрин, Александр Николаевич; Russian Foundation for Basic Research GrantRussian Foundation for Basic Research (RFBR) [1802-00754]; European Meeting on Ferroelectricity(14 ; 2019 ; 14-19 July ; Lausanne, Switzerland)
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