Библиотека института физики им. Л.В. Киренского СО РАН

Главная

Базы данных

Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

Область поиска

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>S=(NH4)(3)TIOF5<.>)

Общее количество найденных документов : 7
Показаны документы с 1 по 7

Raman scattering study of temperature and hydrostatic pressure phase transitions in Rb2KTiOF5 crystal / A. S. Krylov [et al.] // J. Raman Spectrosc. - 2012. - Vol. 43, Is. 4. - P. 577-582, DOI 10.1002/jrs.3071. - Cited References: 24. - This work was partly supported by integration project SB RAS No 101, Russian Foundation for Basic Research project No 11-02-98002-r_siberia, No 09-02-00062, SS-4645.2010.2. . - ISSN 0377-0486

РУБ Spectroscopy
Рубрики:
LATTICE-DYNAMICS
   OXYFLUORIDES
   (NH4)(3)TIOF5
   SPECTRA
   ELPASOLITE
Кл.слова (ненормированные):
structural phase transition -- Rb2KTiOF5 -- Raman spectroscopy -- hysteresis -- hydrostatic pressure
Аннотация: Raman spectra of Rb2KTiOF5 crystal were obtained and analyzed in the temperature range from 77 to 297 K and under hydrostatic pressure up to 4.2 GPa (at T = 295 K). The experimental results were compared with quantum-chemical simulation of TiOF5 pseudo-octahedron. To interpret effects of lattice ordering, phonon spectra of several ordered phases of Rb2KTiOF5 were calculated within ab initio generalized Gordon–Kim model, and ordering of TiOF5 molecular groups were simulated within Monte Carlo approach. The spectra exhibited orientation disordering in the cubic phase under ambient conditions. Cooling below the phase transition temperature (215 K) leads to partial ordering of the structure. The isotropic perovskite-like phase was found to undergo first-order transition into a low-symmetry anisotropic phase at about 1 GPa. Further compression up to 4.1 GPa did not show any effects associated with phase transitions. Copyright © 2011 John Wiley & Sons, Ltd.

Смотреть статью,
Scopus,
WoS,
Читать в сети ИФ
Держатели документа:
[Krylov, A. S.
Vtyurin, A. N.
Krylova, S. N.
Sofronova, S. N.
Voronov, V. N.
Babushkin, S. V.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Goryainov, S. V.] Inst Mineral & Petrogaphy, Novosibirsk 630090, Russia
[Laptash, N. M.
Emelina, T. B.] Russian Acad Sci, Inst Chem, Vladivostok 690022, Russia

Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Goryainov, S. V.; Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylova, S. N.; Крылова, Светлана Николаевна; Sofronova, S. N.; Софронова, Светлана Николаевна; Laptash, N. M.; Emelina, T. B.; Voronov, V. N.; Воронов, Владимир Николаевич; Babushkin, S. V.
}
Найти похожие

    Low-temperature synthesis and structural properties of ferroelectric K 3WO3F3 elpasolite / V. V. Atuchin [et al.] // Chem. Phys. Lett. - 2010. - Vol. 493, Is. 1-3. - P. 83-86, DOI 10.1016/j.cplett.2010.05.023. - Cited References: 37 . - ISSN 0009-2614
Рубрики:
PEROVSKITE-LIKE OXYFLUORIDES
   CORE-LEVEL SPECTROSCOPY
   PHASE-TRANSITIONS
   SOLID-STATE
   ELECTRON-DIFFRACTION
   DIFFUSE-SCATTERING
   RHEED ANALYSIS
   POLAR
   BEHAVIOR
   (NH4)(3)TIOF5
Кл.слова (ненормированные):
Chemical synthesis -- Elpasolite -- Ferroelectric phase transition -- Fluorine atoms -- Low temperature synthesis -- Low temperatures -- Oxyfluorides -- Partial ordering -- Room temperature -- SEM -- Space Groups -- Structure parameter -- XRD -- Chemical properties -- Ferroelectric materials -- Ferroelectricity -- Fluorine -- Oxygen -- Phase transitions -- Rietveld method -- Single crystals -- Synthesis (chemical) -- X ray photoelectron spectroscopy -- X ray powder diffraction -- Scanning electron microscopy
Аннотация: Low-temperature ferroelectric G2 polymorph of K3WO 3F3 has been prepared by chemical synthesis. Structural and chemical properties of the final product have been evaluated with X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). Structure parameters of G2-K 3WO3F3 are refined by the Rietveld method from XRD data measured at room temperature (space group Cm, Z = 2, a = 8.7350(3), b = 8.6808(5), c = 6.1581(3), ? = 135.124(3), V = 329.46(3) 3; RB = 2.47%). Partial ordering of oxygen and fluorine atoms has been found over anion positions. Mechanism of ferroelectric phase transition in A2BMO3F3 oxyfluorides is discussed. В© 2010 Elsevier B.V. All rights reserved.

Scopus,
Читать в сети ИФ
Держатели документа:
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russian Federation
Laboratory of Nanolithography and Nanodiagnostics, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russian Federation
Laboratory of Physical Principles for Integrated Microelectronics, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russian Federation
Laboratory of Crystal Physics, Institute of Physics, SB RAS, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Atuchin, V. V.; Gavrilova, T. A.; Kesler, V. G.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
Найти похожие

Specific heat, cell parameters, phase T-p diagram, and permittivity of cryolite (NH4)(3)Nb(O-2)(2)F-4 / V. D. Fokina [et al.] // Phys. Solid State. - 2011. - Vol. 53, Is. 10. - P. 2147-2153, DOI 10.1134/S1063783411100131. - Cited References: 19. - This study was performed within the Interdisciplinary integration project of the Siberian Branch of the Russian Academy of Science no. 34 and supported by the grant of the President of the Russian Federation for Leading Scientific Schools of the Russian Federation (NSh-4645.2010.2). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
CRYSTAL-STRUCTURES
   TRANSITIONS
   (NH4)(3)TIOF5
   OXYFLUORIDE
   COMPLEXES
   CAPACITY
   DISORDER
Аннотация: The temperature dependences of the specific heat, unit cell parameters, susceptibility to hydrostatic pressure, and permittivity of cryolite (NH4)(3)Nb(O-2)(2)F-4 have been studied. Phase transitions of nonferroelectric nature have been detected. Entropy parameters point to the relation of structure distortions to ordering processes.

WOS,
Scopus,
Читать в сети ИФ
Держатели документа:
[Fokina, V. D.
Bovina, A. F.
Bogdanov, E. V.
Pogorel'tsev, E. I.
Gorev, M. V.
Flerov, I. N.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Laptash, N. M.] Russian Acad Sci, Inst Chem, Far Branch E, Vladivostok 690022, Russia
[Gorev, M. V.
Flerov, I. N.] Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Science, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Institute of Chemistry, Far-East Branch of the Russian Academy of Sciences, pr. 100 Let Vladivostoku 159, Vladivostok 690022, Russian Federation
Institute of Engineering Physics and Radioelectronics, Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Fokina, V. D.; Фокина, Валентина Дмитриевна; Bovina, A. F.; Бовина, Ася Федоровна; Bogdanov, E. V.; Богданов, Евгений Витальевич; Pogorel'tsev, E. I.; Laptash, N. M.; Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.; Флёров, Игорь Николаевич
}
Найти похожие

Thermodynamic Properties and Structure of Oxyfluorides Rb(2)KMoO(3)F(3) and K(2)NaMoO(3)F(3) / E. I. Pogorel'tsev [et al.] // Phys. Solid State. - 2011. - Vol. 53, Is. 6. - P. 1202-1211, DOI 10.1134/S1063783411060266. - Cited References: 24. - This study was supported by the Siberian Branch of the Russian Academy of Sciences within the framework of the Interdisciplinary Integration project no. 34 SO RAN and the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools of the Russian Federation (project no. NSh-4645-2010.2). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
T PHASE-DIAGRAM
   HEAT-CAPACITY
   TRANSITIONS
   (NH4)(3)MOO3F3
   (NH4)(3)TIOF5
   (NH4)(3)WO3F3
   RB2KTIOF5
   CRYSTALS
   CRYOLITE
   DISORDER
Аннотация: According to the results of calorimetric and structural studies, the Fm (3) over barm phase in K(2)NaMoO(3)F(3) remains stable at least to 100 K. No ferroelectric transformation assumed earlier has been revealed in a series of Rb(2)KMoO(3)F(3) samples prepared using various technologies. Only a phase transition of nonferroelectric origin has been observed near 195 K, and its thermodynamic characteristics have been determined. An analysis of the stability of the cubic structure of molybdenum fluorine-oxygen elpasolites-cryolites has been performed in the framework of the hypothesis on strengths of interatomic bonds. The barocaloric effect in Rb(2)KMoO(3)F(3) has been estimated.

WOS,
Scopus,
Читать в сети ИФ
Держатели документа:
[Pogorel'tsev, E. I.
Gorev, M. V.
Flerov, I. N.] Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia
[Bogdanov, E. V.
Molokeev, M. S.
Voronov, V. N.
Gorev, M. V.
Flerov, I. N.] Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
[Isaenko, L. I.
Zhurkov, S. A.] Russian Acad Sci, Siberian Branch, Sobolev Inst Geol & Mineral, Novosibirsk 630090, Russia
[Laptash, N. M.] Russian Acad Sci, Far Eastern Branch, Inst Chem, Vladivostok 690022, Russia
ИФ СО РАН
Institute of Engineering Physics and Radioelectronics, Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk 660041, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk 630090, Russian Federation
Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, ul. Stoletiya Vladivostoka 159, Vladivostok 690022, Russian Federation

Доп.точки доступа:
Pogorel'tsev, E. I.; Bogdanov, E. V.; Богданов, Евгений Витальевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Voronov, V. N.; Воронов, Владимир Николаевич; Isaenko, L. I.; Zhurkov, S. A.; Laptash, N. M.; Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.; Флёров, Игорь Николаевич
}
Найти похожие

Effect of deuteration on the thermal properties and structural parameters of the (NH4)(2)WO2F4 oxyfluoride / I. N. Flerov [et al.] // Phys. Solid State. - 2007. - Vol. 49, Is. 6. - P. 1149-1156, DOI 10.1134/S1063783407060212. - Cited References: 11 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
PEROVSKITE-LIKE OXYFLUORIDES
   PHASE-TRANSITIONS
   (NH4)(3)WO3F3
   (NH4)(3)TIOF5
Аннотация: The thermal properties and structure of (ND4)(2)WO2F4 crystals are investigated. It is established that deuteration does not lead to a change in the symmetry of the initial phase Cmcm but considerably decreases the extent of its disordering, which, in turn, brings about a substantial decrease in the phase transition entropy. Apart from the anomalies associated with phase transitions characteristic of the protonic compound, the heat capacity exhibits two additional anomalies. Analysis of the phase diagram of the deuterated crystal reveals a triple point at a pressure p = 0.18 GPa, which is predicted for (NH4)(2)WO2F4 at about 0.7 GPa.

WOS,
Scopus,
Читать в сети ИФ
Держатели документа:
LV Kirenskii Inst Phys, Russian Acad Sci, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Flerov, I. N.; Флёров, Игорь Николаевич; Fokina, V. D.; Фокина, Валентина Дмитриевна; Gorev, M. V.; Горев, Михаил Васильевич; Bogdanov, E. V.; Богданов, Евгений Витальевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Bovina, A. F.; Бовина, Ася Федоровна; Kocharova, A. G.; Кочарова, Алла Георгиевна
}
Найти похожие

Heat capacity, structural disorder, and the phase transition in cryolite (NH4)(3)Ti(O-2)F-5 / I. N. Flerov [et al.] // Phys. Solid State. - 2006. - Vol. 48, Is. 8. - P. 1559-1567, DOI 10.1134/S1063783406080221. - Cited References: 18 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
PEROVSKITE-LIKE OXYFLUORIDES
   CRYSTAL-STRUCTURES
   (NH4)(3)TIOF5
   (NH4)(3)WO3F3
   DIFFRACTION
Аннотация: The heat capacity, T-p phase diagrams, and unit cell parameters of cryolite (NH4)(3)Ti(O-2)F-5 were studied over a wide temperature range. A phase transition was found near 226 K, and its thermodynamic characteristics and their dependence on the crystallization conditions were determined. The coordinates and thermal parameters of atoms in the Fm3m phase were refined. An analysis of the electron density distribution and the transition entropy showed that the mechanism of the structural transition involves, above all, rotation of the Ti(O-2)F-5 octahedra. Possible models of disordering of tetrahedral ammonium groups are considered.

WOS,
Scopus,
Читать в сети ИФ
Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Chem, Far E Div, Vladivostok 690022, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Institute of Chemistry, Far East Division, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022, Russian Federation

Доп.точки доступа:
Flerov, I. N.; Флёров, Игорь Николаевич; Gorev, M. V.; Горев, Михаил Васильевич; Fokina, V. D.; Фокина, Валентина Дмитриевна; Molokeev, M. S.; Молокеев, Максим Сергеевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Bovina, A. F.; Бовина, Ася Федоровна; Laptash, N. M.
}
Найти похожие

    Phase transitions and thermodynamic properties of (NH4)(3)VO2F4 cryolite / V. D. Fokina [et al.] // Solid State Sci. - 2009. - Vol. 11, Is. 4. - P. 836-840, DOI 10.1016/j.solidstatesciences.2008.11.004. - Cited Reference Count: 17. - Гранты: The authors are grateful to Dr. SM. Mel'nikova for the permission to use the unpublished results.; This work was supported by the Russian Foundation for Basic Research (project 06-02-16102). - Финансирующая организация: Russian Foundation for Basic Research [06-02-16102] . - ISSN 1293-2558
Рубрики:
PEROVSKITE-LIKE OXYFLUORIDES
   (NH4)(3)TIOF5
   CS
   (NH4)(3)WO3F3
   DIFFRACTION
   (NH4)3VO2F4
   ELPASOLITE
   METALS
   RB
Кл.слова (ненормированные):
Oxyfluorides -- Phase transition -- Calorimetry -- Phase diagram -- Ferroelectricity -- Calorimetry -- Ferroelectricity -- Oxyfluorides -- Phase diagram -- Phase transition -- Calorimetry -- Ferroelectricity -- Halide minerals -- Phase diagrams -- Sugar (sucrose) -- Thermodynamic properties -- Calorimetric measurements -- Cubic phase -- First-order phase transitions -- Heat capacities -- Oxyfluorides -- Phase transition temperatures -- Pressure dependences -- Structural transformations -- Temperature ranges -- Phase transitions
Аннотация: Calorimetric measurements performed in a wide temperature range on (NH4)(3)VO2F4 have shown the presence of four heat capacity anomalies at T-1 = 438 K, T-2 = 244 K, T-3 = 210.2 K, T-4 = 205.1 K associated with the first order phase transitions. In accordance with the permittivity behavior, the structural transformations are of nonferroelectric nature. Pressure dependence of the phase transition temperatures has been studied by DTA under pressure. The entropy of phase transitions is analyzed mainly in the framework of the orientational disordering of NH4+ and VO2F43- ions in a cubic phase. (C) 2008 Elsevier Masson SAS. All rights reserved.

WOS,
Scopus,
eLibrary
Держатели документа:
RAS, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660074, Russia

Доп.точки доступа:
Fokina, V. D.; Фокина, Валентина Дмитриевна; Gorev, M. V.; Горев, Михаил Васильевич; Kocharova, A. G.; Кочарова, Алла Георгиевна; Flerov, I. N.; Флёров, Игорь Николаевич; Pogoreltsev, E.I.
}
Найти похожие