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Найдено документов в текущей БД: 4

    STUDY OF RB2KSC1-XGAXF6 SOLID-SOLUTIONS
/ M. V. GOREV [и др.] // Fiz. Tverd. Tela. - 1995. - Vol. 37, Is. 3. - P. 819-823. - Cited References: 12 . - ISSN 0367-3294
РУБ Physics, Condensed Matter


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Доп.точки доступа:
GOREV, M. V.; BOVINA, A. F.; BONDARENKO, G. V.; FLEROV, I. N.; TRESSO, A.; GRANNEK, Z.

    THERMOPHYSICAL STUDIES OF THE RB2KFEF6 FERROELASTIC
/ M. V. GOREV [и др.] // Fiz. Tverd. Tela. - 1994. - Vol. 36, Is. 4. - P. 1121-1125. - Cited References: 15 . - ISSN 0367-3294
РУБ Physics, Condensed Matter


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Доп.точки доступа:
GOREV, M. V.; FLEROV, I. N.; VORONOV, V. N.; TRESSO, A.; GRANNEK, J.; GHAMINADE, J. P.

    Thermodynamic characteristics and phase transitions in Rb3B3+F6 (B3+=Ga, DY) cryolite fluoride crystals
/ I. N. Flerov [и др.] // Fiz. Tverd. Tela. - 1996. - Vol. 38, Is. 7. - P. 2203-2213. - Cited References: 26 . - ISSN 0367-3294
РУБ Physics, Condensed Matter


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Доп.точки доступа:
Flerov, I. N.; Gorev, M. V.; Voronov, V. N.; Bovina, A. F.

    Phase transitions in (NH4)2MoO2F4 crystal
/ A. Krylov [et al.] // J. Mol. Struct. - 2016. - Vol. 1124, Special Issue : Novel developments and applications of two-dimensional correlation spectroscopy — A festschrift in honor of professor Isao Noda. - P. 125-130, DOI 10.1016/j.molstruc.2016.03.009. - Cited References:17 . - ISSN 0022-2860. - ISSN 1872-8014
   Перевод заглавия: Фазовые переходы в кристалле (NH4)2MoO2F4
РУБ Chemistry, Physical

Аннотация: The mechanisms of temperature and high pressure phase transitions have been studied by Raman spectroscopy. Room temperature (295 K) experiments under high hydrostatic pressure up to 3.6 GPa for (NH4)(2) MoO2 F-4 have been carried out. Experimental data indicates a phase transition into a new high-pressure phase for (NH4)(2) MoO2 F-4 at 1.2 GPa. This phase transition is related to the ordering anion octahedron groups [MoO2 F-4](2) and is not associated with ammonium group. Raman spectra of small non-oriented crystals ranging from 10 to 350 K have been observed. The experiment shows anion groups [MoO2 F-4](2-) and ammonium in high temperature phase are disordered. The phase transition at T-1 = 269.8 K is of the first-order, close to the tricritical point. The first temperature phase transition is related to the ordering anion octahedron groups [MoO2 F-4](2-). Second phase transitions T-2 = 180 K are associated with the ordering of ammonium. The data presented within this study demonstrate that 2D correlation analysis combined with traditional Raman spectroscopy are powerful tool to study phase transitions in the crystals. (C) 2016 Elsevier B.V. All rights reserved.

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Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Laptash, N. M.; Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylova, S. N.; Крылова, Светлана Николаевна; International Symposium on Two-Dimensional Correlation Spectroscopy(8th ; JUL 08-11, 2015 ; Vienna, Austria)