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1.
Exploration on anion
ordering, optical properties and electronic structure in K3WO3F3 elpasolite / V. V. Atuchin [et al.]> // J. Solid State Chem. - 2012. -
Vol. 187
. - P. 159-164,
DOI
10.1016/j.jssc.2011.12.037. - Cited References: 50. - This study is partly supported by SB RAS Project No. 34. ZSL acknowledges the funding support of No. 91022036, 11174297, 2010CB630701, and 2011CB922204 in China. Authors also wish to thank V. D. Fokina for microcaloric measurements. . - ISSN 0022-4596
Перевод заглавия:
Исследование анионного упорядочения, оптических свойств и электронной структуры в эльпасолите K3WO3F3
РУБ
Chemistry, Inorganic & Nuclear + Chemistry, Physical + Chemical modification + Electronic structure + Optical properties + Potassium + Structure (composition)
Рубрики:
PHASE-TRANSITIONS
CRYSTAL-GROWTH
FERROELECTRIC
K3WO3F3
SOLID-STATE
OXYFLUORIDE
FLUORIDE
POLAR
CS
(NH4)(3)MOO3F3
APPROXIMATION
Anion ordering
Chemical routes
Elpasolite
First-priciples calculation
Forbidden band
Low temperatures
Non-linear optical coefficients
Nonlinear optical crystal
Optical transparency
Oxyfluorotungstate
Room temperature
Кл.слова (ненормированные):
Oxyfluorotungstate
--
Structure
--
Nonlinear optical crystals
--
Electronic and optical properties
--
First-principles calculations
Аннотация:
Room-temperature modification of potassium oxyfluorotungstate, G(2)-K3WO3F3, has been prepared by low-temperature chemical route and single crystal growth. Wide optical transparency range of 0.3-9.4 mu m and forbidden band gap E-g=4.32 eV have been obtained for G(2)-K3WO3F3 crystal. Meanwhile, its electronic structure has been calculated with the first-principles calculations. The good agreement between the theorectical and experimental results have been achieved. Furthermore, G(2)-K3WO3F3 is predicted to possess the relatively large nonlinear optical coefficients. (C) 2012 Elsevier Inc. All rights reserved.
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Держатели документа:
[Lin, Z. S.] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China
[Atuchin, V. V.] SB RAS, Lab Opt Mat & Struct, Inst Semicond Phys, Novosibirsk 630090, Russia
[Isaenko, L. I.
Yelisseyev, A. P.
Zhurkov, S. A.] SB RAS, Lab Crystal Growth, Inst Geol & Mineral, Novosibirsk 630090, Russia
[Kesler, V. G.] Russian Acad Sci, Inst Semicond Phys, Lab Phys Principles Integrated Microelect, Novosibirsk 630090, Russia
[Molokeev, M. S.] SB RAS, Lab Crystal Phys, Inst Phys, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Atuchin, V. V.; Isaenko, L. I.; Kesler, V. G.; Lin, Z. S.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Yelisseyev, A. P.; Zhurkov, S. A.
}
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2.
Synthesis and structural
properties of cubic G0-Rb2KMoO3F3 oxyfluoride / V. V. Atuchin [et al.]> // Ceram. Int. - 2012. -
Vol. 38
,
Is. 3
. - P. 2455-2459,
DOI
10.1016/j.ceramint.2011.11.013. - Cited References: 23. - This study was partly supported by RFBR (Grant 09-02-00062) and SB RAS (Grant 34). . - ISSN 0272-8842
РУБ
Materials Science, Ceramics
Рубрики:
PHASE-TRANSITIONS
FERROELECTRIC
K3WO3F3
(NH4)(3)MOO3F3
TEMPERATURE
PEROVSKITE
ELPASOLITE
CRYSTALS
BEHAVIOR
High temperature
Melt solidification
Micromorphologies
Melt solidification
Microstructure-final
Oxyfluorides
Space Groups
Oxyfluorides
X ray methods
Кл.слова (ненормированные):
Powders: solid state reaction
--
Microstructure-final
--
X-ray methods
--
Alkali oxides
--
Halides
Аннотация:
High-temperature G0 polymorph of Rb2KMoO3F3 has been prepared by melt solidification. Micromorphology and chemical properties of the final product were evaluated by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The elpasolite-related crystal structure of G0-Rb2KMoO3F3 has been refined by Rietveld method at T = 298 K (space group Fm-3m, a = 8.92446(8) Å, V = 710.76(1) Å3; RB = 3.55%).
Ferroelectric
G1-Rb2KMoO3F3 polymorph, earlier reported at T˂328 K, is not found at T = 298 K.
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Держатели документа:
[Atuchin, V. V.] SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090 90, Russia
[Gavrilova, T. A.] SB RAS, Inst Semicond Phys, Lab Nanolithog & Nanodiagnost, Novosibirsk 630090 90, Russia
[Isaenko, L. I.
Zhurkov, S. A.] SB RAS, Inst Geol & Mineral, Lab Crystal Growth, Novosibirsk 530090 90, Russia
[Kesler, V. G.] SB RAS, Inst Semicond Phys, Lab Phys Principles Integrated Microelect, Novosibirsk 630090 90, Russia
[Molokeev, M. S.] SB RAS, Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036 36, Russia
Доп.точки доступа:
Atuchin, V. V.; Gavrilova, T. A.; Isaenko, L. I.; Kesler, V. G.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Zhurkov, S. A.
}
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3.
Studies of
ferroelectric
and magnetic phase transitions in multiferroic PbFe0.5B0.5O3-PbTiO3 (B-Nb, Ta) solid solution ceramics / I. P. Raevski [et al.]> // International symposium "Physics and Mechanics of New Materials and Underwater Applications" : Abstracts and schedule. - 2013. - P. 38-39
Доп.точки доступа:
Raevski, I. P.; Kubrin, S. P.; Blazhevich, A. V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Misjul, S. V.; Eremin, E. V.; Еремин, Евгений Владимирович; Chen, H.; Sitalo, E. I.; Raevskaya, S. I.; Titov, V. V.; Sarychev, D. A.; Malitskaya, M. A.; Zakharchenko, I. N.; "Physics and Mechanics of New Materials and Underwater Applications", International symposium (2013 ; Jun. ; 5-8 ; Kaohsiung, Taiwan)
}
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4.
Zamkova, N. G.
First-principles calculations of
ferroelectric
properties in AA`BB`O6 double perovskites with different types of cation ordering / N. G. Zamkova, V. S. Zhandun, V. I. Zinenko> // Phys. status solidi B. - 2013. -
Vol. 250
,
Is. 9
. - P. 1888-1897,
DOI
10.1002/pssb.201349084 . - ISSN 0370-1972
Перевод заглавия:
Первопринципные расчеты сегнетоэлектрических свойств двойных перовскитов AA'BB'O6
Кл.слова (ненормированные):
Density functional theory
--
Double perovskites
--
Ferroelectrics
--
Polarization
Аннотация:
First-principles calculations of lattice dynamics and polarization properties have been performed for double perovskite ABiBNbO6 (A - alkali metal Na, Rb, and B - trivalent metal Sc, Lu). Three possible types of A- and B-site cation ordering are studied: layer and columnar ordering of A-site cations with rocksalt ordering of B-site cations, and layer ordering of both cations. The ground state of all compounds is polar with a large value of polarization for all types of cation ordering. For some compounds we obtain spontaneous polarization of 0.7-1.0Cm-2 that is twice the BaTiO3 value. For RbBiScNbO6 the lowest-energy state has layer ordering of both A- and B-site cations, which is rare for compounds with double-perovskite structure.
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Доп.точки доступа:
Zhandun, V. S.; Жандун, Вячеслав Сергеевич; Zinenko, V. I.; Зиненко, Виктор Иванович; Замкова, Наталья Геннадьевна
}
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5.
Caloric effects and
phase transitions in
ferroelectric
-ferromagnetic composites (x) La0.7Pb0.3MnO3 – (1-x) PbTiO3 / E. Mikhaleva [et al.]> //
International Conference “Functional materials and nanotechnologies” FM&NT 2012. - 2012. - P. 82
Материалы конференции
Доп.точки доступа:
Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Kartashev, A. V.; Карташев, Андрей Васильевич; Gorev, M. V.; Горев, Михаил Васильевич; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Sablina, K. A.; Саблина, Клара Александровна; Mikhashenok, N. V.; Михашенок, Наталья Владимировна; Flerov, I. N.; Флёров, Игорь Николаевич; Functional Materials and Nanotechnologies(2012 ; Apr. ; 17-20 ; Riga, Latvia)
}
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6.
Caloric effects and
phase transitions in ferromagnetic-
ferroelectric
composites xLa(0.7)Pb(0.3)MnO(3)-(1-x)PbTiO3 / E. A. Mikhaleva [et al.]> // J. Mater. Res. - 2013. -
Vol. 28
,
Is. 24
. - P. 3322-3331,
DOI
10.1557/jmr.2013.360. - Cited References: 24. - This study was supported in parts by The Russian Foundation for Basic Research (Grant No. 12-02-31253-mol-a), Federal Special Program "Scientific and scientific-pedagogical staff of innovative Russia" (N 8379), and Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools (Grant NO. NSh-4828.2012.2). Dr. Maxim S. Molokeev is acknowledged for the x-ray characterization of the samples. . - ISSN 0884-2914. - ISSN 2044-5326
РУБ
Materials Science
Рубрики:
PRESSURE
TEMPERATURE
Аннотация:
Ceramic volumetric composites xLa(0.7)Pb(0.3)MnO(3)-(1-x)PbTiO3 (x = 0.18 and 0.85) were prepared. X-ray investigations have shown that rather low sintering temperature (800 degrees C) has allowed us to avoid the reaction and interdiffusion between two initial phases. Heat capacity, thermal expansion, and intensive magnetocaloric effect were measured in a wide temperature range. The sample composition has a low influence on temperatures of the ferromagnetic and
ferroelectric
phase transitions in composites. Electro- and barocaloric effects were determined by analysis in the framework of thermodynamic theory, electric equation of state, Maxwell relationships, and entropy-temperature-pressure phase diagram. Multicaloric efficiency of composites is discussed and compared with that of initial La0.7Pb0.3MnO3 and PbTiO3 compounds. Variation of a relationship between components can significantly increase both barocaloric and magnetocaloric efficiency of compositional material due to the mechanical stress appearing between grains of different ferroic phases under magnetic field.
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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660079, Russia
Доп.точки доступа:
Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Flerov, I. N.; Флёров, Игорь Николаевич; Kartashev, A. V.; Карташев, Андрей Васильевич; Gorev, M. V.; Горев, Михаил Васильевич; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Sablina, K. A.; Саблина, Клара Александровна; Mikhashenok, N. V.; Михашенок, Наталья Владимировна; Volkov, N. V.; Волков, Никита Валентинович; Shabanov, A. V.; Шабанов, Александр Васильевич; Russian Foundation for Basic Research [12-02-31253-mol-a]; Federal Special Program "Scientific and scientific-pedagogical staff of innovative Russia" [N 8379]; Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools [NSh-4828.2012.2]
}
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7.
Pseudo-proper
ferroelectric
phase
transitions in oxyfluoride K3WO3F3 / M. P. Ivliev [и др.]> // Phase Transit. - 2014. -
Vol. 87
,
Is. 6
. - P. 592-602,
DOI
10.1080/01411594.2013.878026. - Cited References: 14. - This study was supported by the of the President of the Russian Federation for the Support of Leading Scientific Schools [Grant NSh-924.2014.2]. . - ISSN 0141-1594. - ISSN 1029-0338
Перевод заглавия:
"Псевдособственный" сегнетоэлектрический фазовый переход в оксифториде K3WO3F3
Рубрики:
TRANSFORMATIONS
(NH4)(3)MOO3F3
(NH4)(3)WO3F3
CS
Кл.слова (ненормированные):
phase transition
--
statistical mechanics
--
order-disorder
--
ferroelectric
--
TRANSFORMATIONS
--
(NH4)(3)MOO3F3
--
(NH4)(3)WO3F3
--
CS
Аннотация:
Based on the structural data on the phases of cryolite (ordered perovskite) K3WO3F3, we develop a statistical model, which allows to describe the sequence of phase transitions observed in this compound using a unified approach. According to the model, the crystal possesses two structural subsystems: the K cations located in the octahedral positions and the WO3F3 octahedra in positions alternating with K cations. In the symmetric (cubic) phase, each subsystem can be found in one of the eight states. At decreasing temperature, an orientational phase transition in the subsystem of octahedra occurs first, followed by a phase transition to the low-temperature phase, caused by the loss of stability with respect to the ordering in the K cation subsystem. We find that the electric polarization occurs as pseudoproper and discuss the mechanisms of formation of the phase states.
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Держатели документа:
Southern Fed Univ, Inst Phys Res, Rostov Na Donu, Russia
Siberian Fed Univ, Inst Phys Engn & Radioelect, Krasnoyarsk, Russia
Siberian Dept RAS, Kirensky Inst Phys, Krasnoyarsk, Russia
Доп.точки доступа:
Ivliev, M. P.; Misyul, S. V.; Мисюль, Сергей Валентинович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Sakhnenko, V. P.
}
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8.
Caloric characteristics of
PbTiO3 in the temperature range of the
ferroelectric
phase transition / E. A. Mikhaleva [et al.]> // Phys. Solid State. - 2012. -
Vol. 54
,
Is. 9
. - P. 1832-1840,
DOI
10.1134/S1063783412090181. - Cited References: 31. - This study was supported by the Russian Foundation for Basic Research (project no. 12-08-00079) and the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools of the Russian Federation (grant no. NSh-4828.2012.2). . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
SINGLE-CRYSTALS
LEAD TITANATE
DIELECTRIC PROPERTIES
SOLID-SOLUTIONS
PRESSURE
PEROVSKITES
DEPENDENCE
BEHAVIOR
HEAT
Аннотация:
The heat capacity and thermal expansion of the PbTiO3 ceramic sample have been measured in the temperature range 80–970 K. The electrocaloric and barocaloric efficiencies of lead titanate in the
ferroelectric
phase transition range have been investigated by analyzing the experimental data in terms of the thermodynamic theory of phase transitions, the electrical equation of state P(T, E), the Pippard equation, and the S(T, p) diagram.
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Публикация на русском языке
Калорические характеристики PbTiO3 в области сегнетоэлектрического фазового перехода [Текст] / Е. А. Михалева [и др.] // Физ. тверд. тела : Физико-технический институт им. А.Ф.Иоффе РАН, 2012. - Т. 54 Вып. 9. - С. 1719-1726
Держатели документа:
[Mikhaleva, E. A.
Flerov, I. N.
Gorev, M. V.] Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660074, Russia
[Mikhaleva, E. A.
Flerov, I. N.
Gorev, M. V.
Molokeev, M. S.
Cherepakhin, A. V.
Kartashev, A. V.
Mikhashenok, N. V.
Sablina, K. A.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Flerov, I. N.; Флёров, Игорь Николаевич; Gorev, M. V.; Горев, Михаил Васильевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Kartashev, A. V.; Карташев, Андрей Васильевич; Mikhashenok, N. V.; Михашенок, Наталья Владимировна; Sablina, K. A.; Саблина, Клара Александровна
}
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9.
Electrocaloric and barocaloric
effects in some
ferroelectric
hydrosulfates and triglycinesulfate / E. A. Mikhaleva [et al.]> //
Ferroelectrics. - 2012. -
Vol. 430
. - P. 78-83,
DOI
10.1080/00150193.2012.677717. - Cited References: 14. - This work was supported by the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools (project no, Nsh - 4645.2010.2). . - ISSN 0015-0193
РУБ
Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
PHASE-TRANSITIONS
AMMONIUM
RbHSO4
Кл.слова (ненормированные):
Ferroelectrics
--
phase transitions
--
electrocaloric and barocaloric effects
Аннотация:
A comparative analysis of electrocaloric and barocaloric efficiency of order-disorder ferroelectrics Rbx(NH4)1-xHSO4 and TGS is performed. A good agreement was found between intensive electrocaloric effects measured experimentally and calculated using electric equation of state. Barocaloric effects were evaluated analyzing the experimental data on heat capacity and T-p phase diagrams. In some crystals under study the same adiabatic temperature change can be produced by low pressure and rather high electric field.
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Доп.точки доступа:
Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Flerov, I. N.; Флёров, Игорь Николаевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Gorev, M. V.; Горев, Михаил Васильевич; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Davydova, T. N.; Давыдова, Тамара Николаевна; European Meeting on Ferroelectricity(12 ; 2011 ; 26 June - 1 July ; Bordeaux, France)
}
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10.
Synthesis and spectroscopic
properties of multiferroic β΄-Tb2(MoO4)3 / V. V. Atuchin [et al.]> // Opt. Mater. - 2014. -
Vol. 36
,
Is. 10
. - P. 1631–1635,
DOI
10.1016/j.optmat.2013.12.008. - Cited References: 43. - This study was partly supported by SB RAS under Projects 28.13 and 24.31, and by the PSB RAS Project No. 3.9.5b, and RFBR Projects . - ISSN 0925-3467. - ISSN 1873-1252
Перевод заглавия:
Синтез и спектроскопические свойства мультиферроика β'-Tb2(MoO4)3
Рубрики:
FERROELECTRIC
-FERROELASTIC Tb2(MoO4)3
STIMULATED RAMAN-SCATTERING
TRANSITION-METAL MOLYBDATES
RARE-EARTH MOLYBDATES
CRYSTAL-STRUCTURE
VIBRATIONAL PROPERTIES
LUMINESCENCE PROPERTIES
Tb-2(MoO4)3 CRYSTALS
TERBIUM MOLYBDATE
PHASE-TRANSITIONS
Кл.слова (ненормированные):
Terbium molybdate
--
Raman spectrum
--
Optical properties
Аннотация:
Orthorhombic terbium molybdate, β΄-Tb2(MoO4)3, microcrystals have been fabricated by solid state synthesis at T = 750-1270 K for t = 290 h. The crystal structure β΄-Tb2(MoO4)3 has been refined by Rietveld method in space group Pba2 with cell parameters of a = 10.35387(6), b = 10.38413(6) and c = 10.65695(7) A (RB = 1.83%). About 40 narrow Raman lines have been observed in the Raman spectrum recorded for the β΄-Tb2(MoO4)3 powder sample. The luminescence spectrum of β΄-Tb2(MoO4)3 has been measured under the excitation at 355 nm, and the intensive photoluminescence band at 540-550 nm has been found. В© 2013 Elsevier Ltd. All rights reserved.
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Доп.точки доступа:
Grinberg, M. \ed.\; Bojarski, P. \ed.\; Suchocki, A. \ed.\; Atuchin, V. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Chimitova, O. D.; Krylov, A. S.; Крылов, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Bazarov, B. G.; Bazarova, J. G.; Xia, Zhiguo; International Workshop on Advanced Spectroscopy and Optical Materials (4th ; 14–19 July 2013 ; Gdańsk, Poland)
}
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11.
Zhandun, V. S.
Lattice dynamics and the
ferroelectric
and antiferrodistorsive instabilities in a bulk crystal and thin films of SrZrO3 / V. S. Zhandun, V. I. Zinenko> // Phys. Solid State. - 2012. -
Vol. 54
,
Is. 7
. - P. 1388-1396,
DOI
10.1134/S1063783412070359. - Cited References: 9. - This study was supported by the Russian Foundation for Basic Research (project no. 09-02-00067) and the Council on Grants from the President of the Russian Federation in Support of Leading Scientific Schools of the Russian Federation (grant no. NSh-4645.2010.2). . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
SRTIO3
Аннотация:
The lattice dynamics and energies of phases related to antiferrodistorsive and
ferroelectric
distortions of bulk crystals and thin films of the SrZrO3 crystal have been calculated within the framework of the ab initio model of an ionic crystal. In the case of a bulk crystal, it has been found that the most energetically favorable phases are related to antiferrodistorsive lattice distortions. Ferroelectricity in the SrZrO3 crystal is suppressed by structural lattice distortions. In the case of thin films, it has been found that the
ferroelectric
instability is retained after the "rotation" of the oxygen octahedron and the film remains polar both in the case of a free surface and with the inclusion of the SrTiO3 substrate in the calculation. The spontaneous polarization of thin films of different thicknesses in the
ferroelectric
phase has been calculated.
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Публикация на русском языке
Жандун, Вячеслав Сергеевич. Динамика решетки, сегнетоэлектрическая и антиферродисторсионная неустойчивость в объемном кристалле и тонких пленках SrZrO3 [Текст] / В. С. Жандун, В. И. Зиненко // Физ. тверд. тела : ФТИ РАН, 2012. - Т. 54 Вып. 7. - С. 1309-1315
Держатели документа:
[Zhandun, V. S.
Zinenko, V. I.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Zinenko, V. I.; Зиненко, Виктор Иванович; Жандун, Вячеслав Сергеевич
}
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12.
Zamkova, N. G.
Effect of Ca 2+ ion substitution by the trivalent ions (Sc 3+, In 3+, La 3+, Bi 3+) on the
ferroelectric
instability in orthorhombic CaTiO3 / N. G. Zamkova, V. I. Zinenko, A. S. Shinkorenko> // Ferroelectrics : Special Issue: Professor Wolfgang Kleemann in honor of his 70th birthday. - 2012. -
Vol. 426
. - P. 132-138,
DOI
10.1080/00150193.2012.671657. - Cited References: 9. - This work was supported by the Russian Foundation for Basic Research (project no. 09-02-00067) . - ISSN 0015-0193. - ISSN 1563-5112
РУБ
Materials Science, Multidisciplinary + Physics, Condensed Matter
Кл.слова (ненормированные):
Ferroelectric
--
polarization
--
lattice dynamics
Аннотация:
Vibration frequencies of instable
ferroelectric
modes, as well as dependencies of crystal energy on ion's displacement amplitudes of these modes in doped compounds Ca1–x A x Ti1–x/4□ x /4O3 (space group Pbmn) with А–Sc3+, In3+, La3+, Bi3+ (□–vacancy) have been calculated in the framework of generalized nonparametric Gordon–Kim model. To compensate excessive positive charge the vacancies were considered to be at Ti4+ sites. Calculations were carried out in the «average» crystal approximation for the impurity concentration x = 0.25. For this purpose 40 atoms’ supercell sets with the different ordering of the heterovalent ions Ca2+ and impurity А3+ have been considered. Every type of impurity has been found to induce
ferroelectric
instability in doped compounds.
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Держатели документа:
[Zamkova, N. G.
Zinenko, V. I.
Shinkorenko, A. S.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk, Russia
Доп.точки доступа:
Zinenko, V. I.; Зиненко, Виктор Иванович; Shinkorenko, A. S.; Шинкоренко, Алексей Сергеевич; Замкова, Наталья Геннадьевна
}
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13.
Ferroelectric
and structural
instability in double perovskites Me1+Bi3+Me3+Nb5+O6 (Me1+ = Na, K, Rb; Me3+ = Sc, Ga, In, Lu) / V. I. Zinenko [et al.]> // J. Exp. Theor. Phys. - 2012. -
Vol. 114
,
Is. 6
. - P. 955-962,
DOI
10.1134/S1063776112040188. - Cited References: 7. - This work was supported by the Russian Foundation for Basic Research (project no. 09-02-00067) and by the program for the support of leading scientific schools (project no. NSh-4645.2010.2). . - ISSN 1063-7761
РУБ
Physics, Multidisciplinary
Аннотация:
Within the Gordon-Kim generalized model with regard to the polarizabilities of ions, the lattice constants, the high-frequency permittivity, the Born dynamic charges, and the vibration constants of the crystal lattice are calculated for cation-ordered double perovskites Me1+Bi3+Me3+Nb5+O6. The vibration spectra of all the compounds exhibit two types of instabilities: instability associated with the rotation of the oxygen octahedron and
ferroelectric
instability. Various combinations of distortions with respect to the rotation mode yield five energetically most favorable distorted phases. The symmetry and the energy characteristics of these phases are discussed. In four of the five phases, the distortions associated with the oxygen octahedron rotation lead to polar phases, thus allowing one to speak of improper ferroelectricity in these compounds. One phase turns out to be nonpolar; however, it contains unstable polar modes such that a displacement along the eigenvectors of these modes gives rise to polarization in the crystal.
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Публикация на русском языке
Сегнетоэлектрическая и структурная неустойчивости в двойных перовскитах Me1+Bi3+Me3+Nb5+O6 (Me1+ = Na, K, Rb; Me3+ = Sc, Ga, In, Lu) [Текст] / В. И. Зиненко [и др.] // Ж. эксперим. и теор. физ. : Наука, 2012. - Т. 141 Вып. 6. - С. 1093-1101
Держатели документа:
[Zinenko, V. I.
Zamkova, N. G.
Zhandun, V. S.
Pavlovskii, M. S.] Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Zinenko, V. I.; Зиненко, Виктор Иванович; Zamkova, N. G.; Замкова, Наталья Геннадьевна; Zhandun, V. S.; Жандун, Вячеслав Сергеевич; Pavlovskii, M. S.; Павловский, Максим Сергеевич
}
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14.
Studies of
ferroelectric
and magnetic phase transitions in multiferroic PbFe0.5Ta0.5O3-PbTiO3 solid solution ceramics / I. P. Raevski [et al.]> // J. Mater. Sci. - 2014. -
Vol. 49
,
Is. 18
. - P. 6459-6466,
DOI
10.1007/s10853-014-8376-z. - Cited References: 35. - This study is partially supported by the Russian Foundation for Basic Research (RFBR) Project 12-08-00887_a and Research Committee of the University of Macau under Research and Development Grant for Chair Professor. . - ISSN 0022-2461. - ISSN 1573-4803
РУБ
Materials Science, Multidisciplinary
Рубрики:
MOSSBAUER
CRYSTALS
BEHAVIOR
NIOBATE
Аннотация:
Dielectric, X-ray, Mossbauer and magnetization studies of (1 − x)PbFe0.5Ta0.5O3–(x)PbTiO3 ceramics with 0 ≤ x ≤ 0.3 have been carried out to determine the compositional evolution of
ferroelectric
and magnetic phase transition temperatures. Addition of PbTiO3 to PbFe0.5Ta0.5O3 increases the temperature T m of the dielectric permittivity maximum, decreases both the diffusion of this maximum and its frequency dependence. However, the Curie–Weiss temperature exceeds T m for all the compositions studied, indicating that the phase transition still remains diffused. Dilution of the (Fe, Ta)-sublattice by Ti lowers the Neel temperature T N but above a certain compositional threshold (x ≈ 0.1) fast lowering of T N stops and a new magnetic state stable in a rather wide compositional range appears. Large difference between the zero-field-cooled (ZFC) and FC magnetization–temperature curves as well as between the temperatures of magnetic phase transition determined from Mossbauer and magnetization studies for compositions with x 0.1 implies that this state is a spin-glass phase.
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Держатели документа:
Southern Fed Univ, Fac Phys, Rostov Na Donu 344090, Russia
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Univ Macau, Fac Sci & Technol, Taipa, Peoples R China
Natl Taiwan Univ Sci & Technol, Taipei 106, Taiwan
Доп.точки доступа:
Raevski, I. P.; Titov, V. V.; Malitskaya, M. A.; Eremin, E. V.; Еремин, Евгений Владимирович; Kubrin, S. P.; Blazhevich, A. V.; Chen, H.; Chou, C.-C.; Raevskaya, S. I.; Zakharchenko, I. N.; Sarychev, D. A.; Shevtsova, S. I.; Russian Foundation for Basic Research (RFBR) [12-08-00887_a]; Research Committee of the University of Macau
}
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15.
Aver'yanov, E. M.
Anisotropy of dipole-dipole interactions in
ferroelectric
langmuir films of poly(vinylidene fluoride-trifluoroethylene) / E. M. Aver'yanov> // JETP Letters. - 2014. -
Vol. 99
,
Is. 10
. - P. 590-593,
DOI
10.1134/S0021364014100026. - Cited References: 12 . - ISSN 0021-3640. - ISSN 1090-6487
РУБ
Physics, Multidisciplinary
Рубрики:
LOCAL-FIELD
BLODGETT-FILMS
COPOLYMER
Аннотация:
The Lorentz tensor components L (j) for poly(vinylidene fluoride-trifluoroethylene, 70/30) Langmuir-Blodgett films in the
ferroelectric
phase are determined experimentally. The results indicate that intralayer dipole-dipole interaction between the segments of the polymer is stronger than interlayer interaction. This conclusion agrees with the absence of the critical film thickness below which ferroelectricity would cease to exist.
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Публикация на русском языке
Аверьянов, Евгений Михайлович. Анизотропия диполь-дипольных взаимодействий в сегнетоэлектрических лэнгмюровских пленках поли(винилиденфторид-трифторэтилена) [Текст] / Е. М. Аверьянов // Письма в Журн. эксперим. и теор. физ. : Наука, 2014. - Т. 99 Вып. 10. - С. 679-682
Доп.точки доступа:
Аверьянов, Евгений Михайлович
}
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16.
Studies of
ferroelectric
and magnetic phase transitions in multiferroic PbFe0.5 B 0.5O3–PbTiO3 (B = Nb, Ta) solid solution ceramics / I. P. Raevski [et al.]> // Advanced materials: Physics, mechanics and applications : Springer, 2014. -
Part II
. - P. 109-120. - (Springer Proceedings in Physics ; Vol. 152),
DOI
10.1007/978-3-319-03749-3_9. - Cited References: 35 . - ISBN 0930-8989. - ISBN 978-3-319-03748-6. - ISBN 978-3-319-03749-3 (eIBSN)
Перевод заглавия:
Исследования сегнетоэлектрических и магнитных фазовых переходов в керамических мультиферроиках PbFe0.5B0.5O3-PbTiO3 (B = Nb, Ta)
Аннотация:
Dielectric, X-ray, Mössbauer and magnetization studies of (1−x)PbFe0.5 B 0.5O3–(x)PbTiO3 (B = Nb, Ta) ceramics from the 0 x 0.3 range have been carried out. Addition of PbTiO3 to PbFe0.5 B 0.5O3 increases the temperature T m of the permittivity maximum, decreases the diffusion of this maximum and lowers the Neél temperature T N . However above a certain compositional threshold (x ≈ 0.1) fast lowering of T N stops and a new magnetic state stable in a rather wide compositional range appears. Large difference between the zero-field cooled and field-cooled magnetization-temperature curves as well as between the temperatures of magnetic phase transition determined from Mössbauer and magnetization studies for compositions with x 0.1 implies that this state is a spin glass phase.
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Доп.точки доступа:
Raevski, I. P.; Kubrin, S. P.; Blazhevich, A. V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Misjul, S. V.; Eremin, E. V.; Еремин, Евгений Владимирович; Chen, H.; Chou, C.-C.; Sitalo, E. I.; Raevskaya, S. I.; Titov, V. V.; Sarychev, D. A.; Malitskaya, M. A.; Zakharchenko, I. N.; International Symposium on Physics and Mechanics of New Materials and Underwater Applications (5-8 June 2013 ; Kaohsiung, Taiwan)
}
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17.
Multicaloric efficiency of
ferroelectric
-ferromagnetic volume composites(x)La0.7Pb0.3MnO3 - (1-x)PbTiO3 [Текст] / E. A. Mikhaleva [и др.]> //
Joint 12th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity. 9th International Conference Functional Materials and Nanotechnologies / International Conference Functional Materials and Nanotechnologies (9 ; 2014 ; Sept. 29 – Oct. 2 ; Riga). - 2014. - Ст. R-11. - P. 172
Перевод заглавия:
Мультикалорические эффекты в объемных композитах сегнетоэлектрик-ферромагнетик (x)La0.7Pb0.3MnO3 - (1-x)PbTiO3
Материалы конференции
,
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Доп.точки доступа:
Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Gorev, M. V.; Горев, Михаил Васильевич; Kartashev, A. V.; Карташев, Андрей Васильевич; Flerov, I. N.; Флёров, Игорь Николаевич; Sablina, K. A.; Саблина, Клара Александровна; Mikhashenok, N. V.; Михашенок, Наталья Владимировна; Joint Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(12 ; 2014 ; Sept. 29 - Oct. 2 ; Riga); International Conference Functional Materials and Nanotechnologies(9 ; 2014 ; Sept. 29 - Oct. 2 ; Riga)
}
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18.
Temperature Structural Changes
in Relaxor
Ferroelectric
BBN Ceramics [Текст] / A. S. Krylov [и др.]> // International conference «Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials» (PFM-2014). - 2014. - Ст. P-39. - P. 126
Перевод заглавия:
Температурные и структурные изменения в керамическом сегнетоэлектрическом релаксоре BBN
Материалы конференции
Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Adamczyk, M.; Kozielski, L.; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Shabanov, A. V.; Шабанов, Александр Васильевич; Pugachev, A.; Krylova, S. N.; Крылова, Светлана Николаевна; Уральский Федеральный университет им. Первого Президента России Б.Н. Ельцина; "Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials", International conference (2014 ; 14-17 July ; Ekaterinburg, Russa)
}
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19.
Structural and electronic
parameters of
ferroelectric
K3WO3F3 / V. V. Atuchin [et al.]> // Solid State Commun. - 2010. -
Vol. 150
,
Is. 43-44
. - P. 2085-2088,
DOI
10.1016/j.ssc.2010.09.023. - Cited References: 34. - This study was partly supported by RFBR (Grant 09-02-00062) and SB RAS (Grant 34). . - ISSN 0038-1098
РУБ
Physics, Condensed Matter
Рубрики:
CORE-LEVEL SPECTROSCOPY
PHASE-TRANSITIONS
RHEED ANALYSIS
SURFACE
OXYFLUORIDE
ELPASOLITE
(NH4)(2)KWO3F3
SUBSTITUTION
TEMPERATURE
DIFFRACTION
Кл.слова (ненормированные):
Ferroelectrics
--
Chemical synthesis
--
Electronic structure
--
Photoelectron spectroscopies
Аннотация:
The low-temperature
ferroelectric
G2 polymorph of K3WO3F3 oxyfluoride is formed by chemical synthesis. The electronic parameters of G2-K3WO3F3 have been measured by X-ray photoelectron spectroscopy under excitation with Al K alpha radiation (1486.6 eV). Detailed spectra have been recorded for all element core levels and Auger lines. The chemical bonding effects in the WO3 F-3 and WO6 octahedrons are considered by using the binding energy difference Delta BE(O-W) = BE(O 1s) BE(W 4f(7/2)). (C) 2010 Elsevier Ltd. All rights reserved.
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Держатели документа:
[Atuchin, V. V.] SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia
[Gavrilova, T. A.] SB RAS, Inst Semicond Phys, Lab Nanolithog & Nanodiagnost, Novosibirsk 630090, Russia
[Kesler, V. G.] SB RAS, Inst Semicond Phys, Lab Phys Principles Integrated Microelect, Novosibirsk 630090, Russia
[Molokeev, M. S.
Aleksandrov, K. S.] SB RAS, Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Доп.точки доступа:
Atuchin, V. V.; Gavrilova, T. A.; Kesler, V. G.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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20.
Peculiarities of electromechanical
properties of
ferroelectric
NH4HSeO4 / V. S. Krasikov [et al.]> // Ferroelectrics. - 1984. -
Vol. 54
,
Is. 1
. - P. 91-94,
DOI
10.1080/00150198408215823. - Cited References: 6. - В WoS указ. стр. 431-434 . - ISSN 0015-0193
РУБ
Materials Science, Multidisciplinary + Physics, Condensed Matter
Аннотация:
Dielectric, piezoelectric and elastic properties of NH4HSeO4 crystal were studied in temperature range 180–300 K. Some anomalies of the properties near Tc=250 K and Ti=261 K were found. These anomalies are caused by high dielectric permeability along b-axis above Ti and the symmetry-forbidden piezoelectric coupling. An effort of phenomenological description of the successive phase transitions is made.
WOS
Доп.точки доступа:
Krasikov, V. S.; Zaitseva, M. P.; Зайцева, Мария Пантелеймоновна; Shabanova, L. A.; Шабанова Л. А.; Zrazhevsky, V. M.; Zherebtsova, L. I.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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