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Structural phase transition in TbFe2.5Ga0.5(BO3)4 single crystal / A. S. Krylov, I. A. Gudim, S. N. Krylova [et al.] // Ferroelectrics. - 2020. - Vol. 559, Is. 1. - P. 128-134, DOI 10.1080/00150193.2020.1722014. - Cited References: 16. - The reported study was funded by the Russian Foundation for Basic Research according to the research project No. 18-02-00754
. - ISSN 0015-0193
Кл.слова (ненормированные):
Soft modes -- low temperatures -- phonon–magnon interaction -- magnetic ordering -- crystal with huntite structure
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.
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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS, Krasnoyarsk, Russian Federation
Moscow Institute of Physics and Technology, Dolgoprudny, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Krylova, S. N.; Крылова, Светлана Николаевна; Krylov, A. A.; Vtyurin, A. N.; Втюрин, Александр Николаевич
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