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X-ray study of phase transitions in CS3Sb2I9 crystal / B. S. Bagautdinov [et al.] // Solid State Commun. - 1999. - Vol. 111, Is. 7. - P. 361-366, DOI 10.1016/S0038-1098(99)00217-3. - Cited References: 4 . - ISSN 0038-1098

РУБ Physics, Condensed Matter
Рубрики:
CS3BI2I9
Кл.слова (ненормированные):
ferroelectrics -- X-ray scattering -- phase transitions -- Crystal growth -- Ferroelectric materials -- Phase transitions -- Single crystals -- Thermal effects -- X ray scattering -- Trigonal symmetry -- Cesium compounds
Аннотация: An X-ray study of three phase transitions (PTs) at 86, 78 and 72 K has been carried out for the trigonal modification of the Cs3Sb2I9 crystal (space group P-3m1, a = 8.460 Angstrom, c = 10.398 Angstrom). The T-c1 = 86 K PT preserves the trigonal symmetry and is associated with the doubling of the c-parameter. At T-c2 = 72 K a doubling of a and b is observed. An intermediate incommensurate phase with q(1) = 1/2c*, q(2) = (1/2 - delta)a* + 1/2c* has been detected in the temperature range of 78-72 K. The lock-in PT at 72 K has a first order character. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

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Держатели документа:
Russian Acad Sci, Inst Crystallog, Moscow 117333, Russia
Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Helsinki, FIN-00014 Helsinki, Finland
Univ Lausanne, Inst Christallog, CH-1015 Lausanne, Switzerland
ИФ СО РАН
Institute of Solid State Physics, RAS, 142432, Chernogolovka, Russian Federation
Institute of Crystallography, Russ. Acad. Sci., Leninski P., Moscow, Russian Federation
L.V. Kirensky Institute of Physics, 660036, Krasnoyarsk, Russian Federation
University of Helsinki, FIN-00014, Helsinki, Finland
Universite de Lausanne, Institut de Christallographie, 1015, Lausanne-Dorigny, Switzerland

Доп.точки доступа:
Bagautdinov, B. S.; Novikova, M. S.; Aleksandrova, I. P.; Александрова, Инга Петровна; Blomberg, M. K.; Chapuis, G.
}
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Makarova, I. P.
X-ray diffraction study of RbLiCrO4 / I. P. Makarova, I. A. Verin, K. S. Aleksandrov // Ferroelectrics. - 1991. - Vol. 124, Is. 1. - P. 91-96, DOI 10.1080/00150199108209420. - Cited References: 12 . - ISSN 0015-0193

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
LITHIUM POTASSIUM-SULFATE
   THERMAL VIBRATIONS
   CRYSTALS
   PROGRAM
   KLISO4
   LIKSO4
Аннотация: Crystal structure of RbLiCrO4 was determined in G3 phase (sp. gr. P31c) at 293, 428, 493, 523 K and in G2 phase (sp. gr. P63) at 553, 583 K applying X-ray diffraction data. The investigated crystals exhibit ‘twinning by merohedry’. The analysis of intensities and influence of anomalous scattering on them allowed us to choose twin elements and atomic configurations of twin domains for all the investigated specimens.

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Доп.точки доступа:
Verin, I. A.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; European meeting on ferroelectricity(7 ; 1991 ; Jul ; 08-12 ; Dijon, France)
}
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Aleksandrov, K. S.
X-ray and optic investigations of phase-transition in cslicro4 crystal / K. S. Aleksandrov, S. V. Mel'nikova, A. I. Kruglik // Ferroelectrics. - 1988. - Vol. 81, Is. 1. - P. 153-156, DOI 10.1080/00150198808008833. - Cited References: 2 . - ISSN 0015-0193

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter

Аннотация: The study of optical properties and X-ray investigations were carried out in CsLiCrO4crystal. It was found (is discussed) an unusual 4 temperature dependence of optical indicatrix rotation and monoclinic angles.

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Доп.точки доступа:
Mel'nikova, S. V.; Мельникова, Светлана Владимировна; Kruglik, A. I.; Александров, Кирилл Сергеевич
}
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Vibrational spectroscopy study of temperature and high pressure phase transition in K3WO3F3 / A. A. Ekimov, A. S. Krylov [et al.] // The 12th International Meeting on Ferroelectricity and 18th IEEE International Symposium on Applications of Ferroelectrics (IMF-ISAF 2009) : Xi'an, China, August 23-27, 2009 . - 2009. - Ст. AP-077

Доп.точки доступа:
Ekimov, A.A.; Krylov, A.S.; Vtyurin, A.N.; Ivanenko, A.A.; Shestakov, N.P.; Goryainov, S.V.; Kocharova, A.G.; IEEE International Symposium on Applications of Ferroelectrics(18 ; 2009 ; Aug ; Xi'an, China); International Meeting on Ferroelectricity(12 ; 2009 ; Aug ; Xi'an, China)
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Vibrational spectroscopy studies of temperature phase transitions in K 3WO3F3 / A. A. Ekimov [et al.] // Ferroelectrics. - 2010. - Т. 401, № 1. - P. 168-172, DOI 10.1080/00150191003676280 . - ISSN 0015-0193. - ISSN 1563-5112

РИНЦ
Держатели документа:
L. V. Kirensky Institute of Physics,Siberian Branch of RAS

Доп.точки доступа:
Ekimov, A. A.; Krylov, A. S.; Крылов, Александр Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич; Ivanenko, A. A.; Иваненко, Александр Анатольевич; Shestakov, N. P.; Шестаков, Николай Петрович; Kocharova, A. G.; Кочарова, Алла Георгиевна
}
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Vibrational spectra of PrF3 crystals / A. A. Ershov [et al.] // Joint 13th Russia/CIS/Baltic/Japan Symp. on Ferroelectricity and Int. Workshop on Relaxor Ferroelectrics (RCBJSF-IWRF 2016) : book of abstracts. - 2016. - Ст. P-78. - References: 3

Материалы конференции

Доп.точки доступа:
Ershov, A. A.; Ершов, Александр Андреевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Shestakov, N. P.; Шестаков, Николай Петрович; Vtyurin, A. N.; Втюрин, Александр Николаевич; Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(13 ; 2016 ; Jun. ; 19-23 ; Matsue, Japan); International Workshop on Relaxor Ferroelectrics(2016 ; Jun. ; 19-23 ; Matsue, Japan)
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Vibrational spectra of NdF3 crystal / A. S. Oreshonkov [et al.] // Ferroelectrics. - 2016. - Vol. 501, Is. 1. - P. 15-19, DOI 10.1080/00150193.2016.1198201. - Cited References: 15. - The reported study was funded by RFBR according to the research project No. 16-32-00351 mol_a. It was partially supported by the Ministry of Education and Science of the Russian Federation and the “Krasnoyarsky regional fund of scientific support and scientific-technical activity.” . - ISSN 0015-0193
Кл.слова (ненормированные):
Trifluorides -- tysonite structure -- Raman spectroscopy -- Infrared spectroscopy
Аннотация: The vibrational spectroscopy investigation of phase transitions in NdF3 crystal is reported. Spectra were obtained in temperature range from 300 to 10 K. It has been shown that, down to 10 K, the trigonal tysonite structure of NdF3 trifluoride remains stable. © 2016 Taylor & Francis Group, LLC.

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Держатели документа:
Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Shestakov, N. P.; Шестаков, Николай Петрович; Voronov, V. N.; Воронов, Владимир Николаевич; Ershov, A. A.; Ершов, Александр Андреевич; Strikina, E. A.; Стрикина, Екатерина Андреевна; Vtyurin, A. N.; Втюрин, Александр Николаевич
}
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Uniaxial mechanical stresses and their influence on the parameters of the ferroelectric phase transition in pressure-treated barium titanate / A. M. Pugachev [et al.] // Ferroelectrics. - 2017. - Vol. 508, Is. 1. - P. 161-166, DOI 10.1080/00150193.2017.1289769. - Cited References: 22 . - ISSN 0015-0193
Кл.слова (ненормированные):
BaTiO3 -- second harmonic generation -- residual mechanical stresses -- ferroelectric phase transition
Аннотация: The dependence of the E(TO) line in Raman spectrum of a BaTiO3 powder on applied uniaxial pressure up to 14 GPa are obtained and the values of residual mechanical stresses are evaluated. The second harmonic generation technique is used to obtain the width and temperature of the cubic-to-tetragonal phase transition in the powder treated by uniaxial pressures. The interrelations between the phase transition width, temperatures, and residual mechanical stresses are established. These interrelations differ from expectations based on known hydrostatic pressure-induced effects in BaTiO3.

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Держатели документа:
Institute of Automation and Electrometry RAS, Novosibirsk, Russian Federation
Novosibirsk State University, Novosibirsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
V. S. Sobolev Institute of Geology and Mineralogy RAS, Novosibirsk, Russian Federation

Доп.точки доступа:
Pugachev, A. M.; Zaytseva, I. V.; Krylov, A. S.; Крылов, Александр Сергеевич; Malinovsky, V. K.; Surovtsev, N. V.; Borzdov, Y. M.; Kovalevsky, V. I.
}
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Flerov, I. N.
Thermodynamic properties of ferroelastics with octahedral ionic groups in structure / I. N. Flerov, M. V. Gorev, K. S. Aleksandrov // Ferroelectrics. - 1990. - Vol. 106, Is. 1. - P. 207-212, DOI 10.1080/00150199008214584. - Cited References: 32 . - ISSN 0015-0193

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter

Аннотация: Analysis of heat capacity, entropy and dTo/dp was carried out for perovskites and related crystals with elpasolite, K2MgF4 and TlAlF4 structures. Role of anharmonic effects is discussed.

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Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Флёров, Игорь Николаевич; International meeting on ferroelectricity(7 ; 1989 ; 28 Aug.-1 Sept. ; Saarbrucken, Fed. Rep. Ger.)
}
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10.

Thermodynamic investigations of ferroelastic phase transitions in K 2ZnCl4 and K2CoCl4 / I. N. Flerov [et al.] // Journal of the Physical Society of Japan. - 1992. - Vol. 61, Is. 5. - P. 1606-1608, DOI 10.1143/JPSJ.61.1606 . - ISSN 0031-9015
Кл.слова (ненормированные):
(NH4) 2SO4 family ferroelectrics -- Ferroelasticity -- Ferroelectricity -- Heat capacity -- Hydrostatic pressure -- K2CoCl4 -- K2ZnCl4 -- Rb2ZnCl 4group ferroelectrics
Аннотация: Using the adiabatic calorimeter the heat capacity of K2ZnCl 4 and K2CoCl4 crystals was measured in temperature range 100?300 K. The entropy change for ferroelastic phase transition was estimated to be ? S=0.34 (Zn) and 0.33 (Co) JВ·mol-1K-1. The effect of hydrostatic pressure on the phase transition was investigated for both crystals.

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Держатели документа:
L. V. Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation
Department of Electrical Engineering, College of Science and Engineering, Meisei University, 2-1-1 Hodokubo, Hino-shi, Tokyo 191, Japan
Department of Electronic Engineering, College of Science and Engineering, Iwaki Meisei University, 5-5-1 Iino, Chuohdai, Iwaki-shi, Fukushima-ken 970, Japan

Доп.точки доступа:
Flerov, I. N.; Флёров, Игорь Николаевич; Yamaguchi, T.; Sawada, S.; Горев, Михаил Васильевич; Gorev, M. V.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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11.

    Thermal properties of (NH4)2MeF6·NH4F (Me: Ti, Sn) crystals undergoing transformation between two cubic phases / E. I. Pogoreltsev [et al.] // Ferroelectrics. - 2016. - Vol. 501, Is. 1. - P. 20-25, DOI 10.1080/00150193.2016.1198659. - Cited References: 9. - The reported study was partially supported by RFBR, research project No 15-02-02009-a . - ISSN 0015-0193
   Перевод заглавия: Тепловые свойства кристаллов (NH4)2MeF6ћNH4F (Me: Ti, Sn) претерпевающих трансформацию между двумя кубическими фазами
Кл.слова (ненормированные):
Phase transitions -- fluorides -- heat capacity -- entropy -- phase diagram
Аннотация: The heat capacity, thermal expansion, and T-p phase diagrams of (NH4)3TiF7 and (NH4)3SnF7 were studied in wide temperature and pressure ranges. The total excess entropies at successive Pa-3 ↔ P4/mnc ↔ 4/m (Ti) and single Pa-3 ↔ Pm-3m (Sn) phase transitions are close to each other and characteristic for the order–disorder processes. The Pm-3m cubic phase and direct Pa-3 ↔ Pm-3m transformation were found at high pressure in (NH4)3TiF7. The different sign of baric coefficients for phase transition between two cubic phases in (NH4)3TiF7 and (NH4)3SnF7 was supposed due to nonlinear phase boundary with pressure in the latter fluoride.

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Держатели документа:
Kirensky Institute of Physics, Siberian Department of RAS, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radioelectronic, Siberian State University, Krasnoyarsk, Russian Federation
Krasnoyarsk State Agrarian University, Krasnoyarsk, Russian Federation
Far Eastern State Transport University, Khabarovsk, Russian Federation
Institute of Chemistry, Far Eastern Department of RAS, Vladivostok, Russian Federation

Доп.точки доступа:
Pogoreltsev, E. I.; Погорельцев, Евгений Ильич; Bogdanov, E. V.; Богданов, Евгений Витальевич; Kartashev, A. V.; Карташев, Андрей Васильевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Flerov, I. N.; Флёров, Игорь Николаевич; Laptash, N. M.
}
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12.

Thermal expansion, polarization and phase diagrams of Ba1-yBi2y/3Ti1-xZrxO3 and Ba1-yLayTi1-y/4O3 compounds / M. . Gorev [et al.] // J. Phys.: Condens. Matter. - 2009. - Vol. 21, Is. 7. - Ст. 75902. - P., DOI 10.1088/0953-8984/21/7/075902. - Cited References: 28. - This work was supported by the Russian Foundation for Basic Research ( project no. 07-02-00069) and the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools ( project no. NSh-1011.2008.2). . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
HEAT-CAPACITY
   CERAMICS
   BA(TI1-XZRX)O-3
   FERROELECTRICS
   BEHAVIOR
   BATIO3
   BATI0.65ZR0.35O3
   CONDUCTIVITY
   PEROVSKITES
   CHEMISTRY
Кл.слова (ненормированные):
Barium -- Dielectric properties -- Lanthanum -- Phase diagrams -- Polarization -- Thermal stress -- Zirconium -- Ceramic compositions -- Root mean squares -- Temperature ranges -- Temperature-dependent measurements -- Thermal expansion co-efficient -- Thermal-expansion properties -- Thermal expansion
Аннотация: The thermal expansion properties of the ceramic compositions Ba1-yLayTi1-y/4O3 (y = 0.0, 0.026, 0.036, 0.054) and Ba1-yBi2y/3Ti1-xZrxO3 (y = 0.10; x = 0.0, 0.04, 0.05, 0.10, 0.15) were determined in the temperature range 120-700 K. We report the temperature- dependent measurements of the strain, thermal expansion coefficient and the magnitude of root mean square polarization. The results obtained are discussed together with the data on the structure and dielectric properties.

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Держатели документа:
[Gorev, Michail
Bondarev, Vitaly
Flerov, Igor] Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Gorev, Michail
Bondarev, Vitaly
Flerov, Igor] Siberian Fed Univ, Inst Engn Phys, Krasnoyarsk 660041, Russia
[Maglione, Mario
Simon, Annie] Univ Bordeaux 1, ICMCB CNRS, F-33608 Pessac, France
[Sciau, Philippe] Univ Toulouse, CEMES CNRS, F-31055 Toulouse, France
[Boulos, Madona
Guillemet-Fritsch, Sophie] Univ Toulouse, CIRIMAT CNRS UPS INPT, F-31062 Toulouse, France
ИФ СО РАН
L v Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Institute of Engineering Physics, Siberian Federal University, av. Svobodny 79, Krasnoyarsk, 660041, Russian Federation
ICMCB-CNRS, Universite de Bordeaux i, 87 avenue A Schweitzer, 33608 Pessac, France
CEMES-CNRS, Universite de Toulouse, 29 rue Jeanne Marvig, 31055 Toulouse, France
CIRIMAT CNRS/UPS/INPT, Universite de Toulouse, Batiment 2R1, 118 route de Narbonne, 31062 Toulouse, France

Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Flerov, I. N.; Флёров, Игорь Николаевич; Maglione, M.; Simon, A.; Sciau, P.; Boulos, M.; Guillemet-Fritsch, S.; Russian Foundation for Basic Research [07-02-00069]; Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools [NSh-1011.2008.2]
}
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13.

Thermal expansion of (Ba1-x La (x) )Ti1-x/4O3 solid solutions / M. V. Gorev [et al.] // Phys. Solid State. - 2009. - Vol. 51, Is. 4. - P. 790-796, DOI 10.1134/S106378340904026X. - Cited References: 22. - This work was supported by the Russian Foundation for Basic Research (project no. 07-02-00069) and the Council on Grants from the President of the Russian Federation for the Support of Leading Scientific Schools of the Russian Federation (grant NSh-1011.2008.2). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
CERAMICS
   BATIO3
   BA(TI1-XZRX)O-3
   FERROELECTRICS
   CONDUCTIVITY
   BEHAVIOR
   SYSTEM
   PHASE
   HEAT
Аннотация: Deformation and the thermal expansion coefficient of ceramic samples of (Ba1 - x La (x) )Ti1 - x/4O3 solid solutions (x = 0, 0.026, 0.036, 0.054) were studied in the temperature range 120-700 K. Based on an analysis of the data obtained, the temperature-composition phase diagram is refined, and the temperature dependence of the polarization is calculated. The results are discussed in combination with the dielectric measurement data.

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Держатели документа:
[Gorev, M. V.
Flerov, I. N.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Gorev, M. V.
Flerov, I. N.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Sciau, Ph.] Univ Toulouse, CNRS, CEMES, Toulouse, France
[Guillemet-Fritsch, S.] Univ Toulouse, CNRS, INPT, CIRIMAT,UPS, Toulouse, France
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Svobodny pr. 79, Krasnoyarsk 660041, Russian Federation
CEMES-CNRS, Universite de Toulouse, Toulouse, France
CIRIMAT CNRS/UPS/INPT, Universite de Toulouse, Toulouse, France

Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.; Флёров, Игорь Николаевич; Sciau, P.; Guillemet-Fritsch, S.; Russian Foundation for Basic Research [07-02-00069]; Russian Federation [NSh-1011.2008.2]
}
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14.

    Thermal expansion and polarization of (1-x)PNN-xPT solid solutions / M. V. Gorev [et al.] // Integr. Ferroelectr. - 2019. - Vol. 196, Is. 1. - P. 60-63, DOI 10.1080/10584587.2019.1591957. - Cited References: 6 . - ISSN 1058-4587. - ISSN 1607-8489
   Перевод заглавия: Тепловое расширение и поляризация твердых растворов (1-x)PNN-xPT

РУБ Engineering, Electrical & Electronic + Physics, Applied + Physics, Condensed Matter
Рубрики:
BEHAVIOR
Кл.слова (ненормированные):
thermal expansion -- polarization -- relaxors -- perovskites
Аннотация: The paper presents the results of detailed studies of the thermal expansion of (1-x)he paper presents the results of detailed studies of the thermal expansion of (1-x)PbNi1/3Nb2/3O3-xPbTiO3 solid solutions with x = 0-0.8. The anomalous and lattice contributions to deformation and the thermal expansion coefficient are analyzed and the mean square polarization Pd is determined. The results obtained are discussed within the framework of the thermodynamic theory and the Landau 2-4-6 coefficients for solid solutions are estimated.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia.
Siberian Fed Univ, Inst Phys & Radioelect, Krasnoyarsk, Russia.
Univ Latvia, Inst Solid State Phys, LV-1063 Riga, Latvia.

Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.; Флёров, Игорь Николаевич; Bormanis, K.; Kalvane, A.; International Scientific Conference on Functional Materials and Nanotechnologies(12 ; 2018 ; Oct. 02-05 ; Riga, Latvia)
}
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15.

Thermal expansion and permittivity of (Ba1-xBi2x/3)TiO3 solid solutions / M. V. Gorev [et al.] // Phys. Solid State. - 2011. - Vol. 53, Is. 10. - P. 2073-2079, DOI 10.1134/S1063783411100143. - Cited References: 24. - This study was supported by the Council on Grants from the President of the Russian Federation for the Support of Leading Scientific Schools (grant NSh-4645.2010.2). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
BARIUM-TITANATE
   CERAMICS
   BATIO3
   BEHAVIOR
   PHASE
   FERROELECTRICS
Аннотация: The strain, the thermal expansion coefficient, and the permittivity of ceramic samples of (Ba1 - x Bi-2x/3)TiO3 solid solutions with x = 0, 0.01, 0.03, and 0.05 have been studied in the temperature range 120-700 K. Based on an analysis of the results, the temperature-composition phase diagram has been refined, and the temperature dependence of the polarization has been calculated.

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Держатели документа:
[Gorev, M. V.
Flerov, I. N.
Bondarev, V. S.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Gorev, M. V.
Bondarev, V. S.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Maglione, M.
Simon, A.] Univ Bordeaux 1, ICMCB CNRS, Pessac, France
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Science, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk 660041, Russian Federation
ICMCB-CNRS, Universite de Bordeaux 1, Pessac, France

Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.; Флёров, Игорь Николаевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Maglione, M.; Simon, A.
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16.

Zinenko, V. I.
The theory of the phase transitions in the crystals MeIMeIIBX4 / V. I. Zinenko, D. H. Blat, K. S. Aleksandrov // Ferroelectrics. - 1980. - Vol. 29, Is. 1. - P. 201-204, DOI 10.1080/00150198008008480. - Cited References: 7 . - ISSN 0015-0193

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter

Аннотация: The model of the order-disorder phase transitions in crystals MeIMeIIBX4 is investigated in a mean field approximation. It is supposed in the model that group BX4 in the α-phase (D46h) moves in four-well potential.

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Доп.точки доступа:
Blat, D. H.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Зиненко, Виктор Иванович
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17.

The study of phase-transitions in single-crystals with elpasolite structure / K. S. Aleksandrov [et al.] // Ferroelectrics. - 1984. - Vol. 54, Is. 1. - P. 237/577-240/580, DOI 10.1080/00150198408215859. - Cited References: 7. - В WoS указаны стр. 577-580 . - ISSN 0015-0193

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter

Аннотация: Structural distortions and physical properties of some fluorides with the elpasolite structure were studied. Different types of distortions at ferroelastic phase transitions for fluorides and chlorides are discussed.

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Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Flerov, I. N.; Флёров, Игорь Николаевич; Bovina, A. F.; Бовина, Ася Федоровна; Voronov, V. N.; Воронов, Владимир Николаевич; Gorev, M. V.; Горев, Михаил Васильевич; Melnikova, S. V.; Мельникова, Светлана Владимировна; Misjul, S. V.; Мисюль, Сергей Валентинович
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18.

Aleksandrov, K. S.
The sequences of structural phase transitions in perovskites / K. S. Aleksandrov // Ferroelectrics. - 1976. - Vol. 14, Is. 1. - P. 801-805DOI 10.1080/00150197608237799
Аннотация: A classification of the octahedral tilt systems in perovskites is given, based on the work of Glazer1 but extending it and using a new notation; this leads to a simple description of the sequences of phase transitions, and shows how they are related to the soft modes M3 and R25. Examples from the literature are discussed.

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Александров, Кирилл Сергеевич
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19.

Flerov, I. N.
The role of chemical pressure in the formation of the piezocaloric effect in fluorine–oxygen ferroics / I. Flerov, M. Gorev // Ferroelectrics. - 2020. - Vol. 567, Is. 1 : Special Issue in Honor of Professor Stanislav A. Grindev on the Occasion of His 83rd Birthday. - P. 1-12, DOI 10.1080/00150193.2020.1791581. - Cited References: 25 . - ISSN 0015-0193
Кл.слова (ненормированные):
Fluorides -- phase transitions -- entropy -- high pressure -- caloric effect
Аннотация: We performed an analysis of the phase diagrams and piezocaloric properties of fluorine–oxygen ferroics (NH4)2MeOxF6-x (Me: W, Mo, Nb; x: 1, 2) with orthorhombic symmetry. The nature of the influence of chemical pressure on the caloric efficiency has been elucidated. Substitutions of central atoms, Mo → W and Nb → W, lead to an increase in absolute and integral piezocaloric effects.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Флёров, Игорь Николаевич
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20.

The properties of Cs2NaB3+Cl6 single crystals near their curie points / K. S. Aleksandrov [et al.] // Ferroelectrics. - 1980. - Vol. 26, Is. 1. - P. 653-656, DOI 10.1080/00150198008008141. - Cited References: 7 . - ISSN 0015-0193

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter

Аннотация: The investigations of thermal expansion, elasticity and X-ray analysis of some elpasolite type crystals were carried out. The thermodynamical description of the structural phase transitions is discussed.

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Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Anistratov, A. T.; Анистратов, Анатолий Тихонович; Zinenko, V. I.; Зиненко, Виктор Иванович; Iskornev, I. M.; Искорнев, Игорь Михайлович; Misyul, S. V.; Мисюль, Сергей Валентинович; Shabanova, L. A.; Шабанова Л. А.
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