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1.
(NH4)3HfF7: Crystallooptical and
calorimetric studies of a number of successive phase transitions / E. Pogoreltsev [et al.]> // J. Fluor. Chem. - 2017. -
Vol. 204
. - P. 45-49,
DOI
10.1016/j.jfluchem.2017.10.004. - Cited References: 14 . - ISSN 0022-1139
Перевод заглавия:
(NH4)3HfF7: Кристаллооптические и калориметрические исследования ряда последовательных фазовых переходов
Аннотация:
Single crystals of (NH4)3HfF7 were grown. Polarising optical observations as well as measurement of the heat capacity and birefringence Δn(Т) were performed in the temperature range of 200–310 K. Reversible phase transitions at temperatures T0 = 290 K, Т1 = 280.5 K, Т2 ≈ 273 K, Т3 = 266 K, Т4 = 259 K, Т5 = 231 K, Т6 = 229 K were found. Observations in polarised light make it possible to suggest a sequence of changes in the symmetry groups for these transitions: Fm3m ⟵Т0→ cub. ⟵Т1→ mmm (1) ⟵Т2→ mmm (2) ⟵Т3→ mmm (3) ⟵Т5→ 2/c. The T-p phase diagram was studied and the temperature boundaries of the stability of the distorted crystalline phases were determined. A significant change of the entropy at successive phase transitions ΣΔS = 10.6 J/mol K indicates a disordering of the initial cubic phase.
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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
Institute of Engineering Systems and Energy, Krasnoyarsk State Agrarian University, Krasnoyarsk, 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; Melnikova, S.V.; Мельникова, Светлана Владимировна; Flerov, I. N.;
Флёров
,
Игорь
Николаевич
; Laptash, N. M.
}
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2.
A study of
the phase diagrams of (NH4)(3)Ga1-xScxF6 ammonium cryolites / M. V. Gorev [et al.]> // Phys. Solid State. - 2002. -
Vol. 44
,
Is. 10
. - P. 1954-1960,
DOI
10.1134/1.1514787. - Cited References: 15 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
TRANSITIONS
Аннотация:
This paper reports on the results of analyzing p-T and x-T phase diagrams and calorimetric properties of solid solutions in (NH4)(3)Ga1 - xScxF6 cryolites with scandium concentrations x = 0.0, 0.1, 0.35, 0.4, 0.6, 0.8, and 1.0. The thermodynamic parameters of the phase transitions observed in the studied compounds are determined. The generalized phase diagram and successive structural transformations in a series of (NH4)(3)Me3+F6 ammonium cryolites are discussed. (C) 2002 MAIK "Nauka/Interperiodica".
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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Inst Chim Mat Condensee Bordeaux, F-33608 Pessac, France
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.;
Флёров
,
Игорь
Николаевич
; Tressaud, A.; Denu, D.; Zaitsev, A. I.; Зайцев, Александр Иванович; Fokina, V. D.; Фокина, Валентина Дмитриевна
}
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3.
Adiabatic calorimetric study
of the intense magnetocaloric effect and the heat capacity of (La(0.4)Eu(0.6))(0.7)Pb(0.3)MnO(3) / A. V. Kartashev [et al.]> // Phys. Solid State. - 2008. -
Vol. 50
,
Is. 11
. - P. 2115-2120,
DOI
10.1134/S1063783408110188. - Cited References: 15. - This study was supported by the Council on Grants from the President of the Russian Federation for the Support of Leading Scientific Schools of the Russian Federation (NSh-1011.2008.2) and the Siberian Branch of the Russian Academy of Sciences ( Lavrent'ev Competition of Young Scientists Projects, grant no. 51) within the framework of the Integration Project no. 3.7 of the Siberian Branch of the Russian Academy of Sciences. . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
LA0.7CA0.3MNO3
MANGANITES
Кл.слова (ненормированные):
75
--
30
--
Sg
--
75
--
40
--
Cx
Аннотация:
The temperature dependences of the intense magnetocaloric effect T (AD)(T, H) and the heat capacity C (p) (T) of the (La(0.4)Eu(0.6))(0.7)Pb(0.3)MnO(3) manganite are directly measured using adiabatic calorimetry. The experimental dependences T (AD)(T) are in satisfactory agreement with those calculated from the data on the behavior of the magnetization. The factors responsible for the absence of an anomaly in the experimental temperature dependence of the heat capacity C (p) (T) in the range of the magnetic phase transition are discussed.
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Держатели документа:
[Kartashev, A. V.
Flerov, I. N.
Volkov, N. V.
Sablina, K. A.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Flerov, I. N.
Volkov, N. V.] Siberian Fed Univ, Krasnoyarsk 660079, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, 660079, Russian Federation
Доп.точки доступа:
Kartashev, A. V.; Карташев, Андрей Васильевич; Flerov, I. N.;
Флёров
,
Игорь
Николаевич
; Volkov, N. V.; Волков, Никита Валентинович; Sablina, K. A.; Саблина, Клара Александровна
}
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4.
Anisotropy of piezocaloric
effect at ferroelectric phase transitions in ammonium hydrogen sulphate / E. V. Bogdanov, I. N. Flerov> //
E-MRS fall meeting : conference programme. - 2019. - Ст. E.P.4. - This work was supported by the Russian Science Foundation (RSF) grant (No. 19-72-00023)
Материалы конференции
Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Siberian Federal University, 660074 Krasnoyarsk, Russia
Far Eastern State Transport University, Khabarovsk, Russia 680021
Astafijev Krasnoyarsk State Pedagogical University, 660049 Krasnoyarsk, Russia
Доп.точки доступа:
Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Gorev, M. V.; Горев, Михаил Васильевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Kartashev, A. V.; Карташев, Андрей Васильевич; Flerov, I. N.;
Флёров
,
Игорь
Николаевич
; Fall Meeting, European Materials Research Society(2019 ; Sept. ; 16-19 ; Warsaw, Poland); European Materials Research Society; Warsaw University of Technology
}
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5.
Anisotropy of piezocaloric
effect at ferroelectric phase transitions in ammonium hydrogen sulphate / E. A. Mikhaleva, M. V. Gorev, M. S. Molokeev [et al.]> // J. Alloys Compd. - 2020. -
Vol. 839
. - Ст. 155085,
DOI
10.1016/j.jallcom.2020.155085. - Cited References: 31. - The reported study was supported by the Russian Science Foundation (project no. 19-72-00023 ). X-ray and dilatometric data were obtained using the equipment of Krasnoyarsk Regional Center of Research Equipment of Federal Research Center "Krasnoyarsk Science Center SB RAS" . - ISSN 0925-8388
Кл.слова (ненормированные):
Piezocaloric effect
--
Phase transition
--
Ferroelectrics
--
Thermal expansion
--
High-pressure
--
Entropy
Аннотация:
The role of anisotropy of the thermal expansion in formation of piezocaloric effect (PCE) near ferroelectric phase transitions in NH4HSO4 was studied. Strong difference in linear baric coefficients and as a result in intensive and extensive PCE associated with the different crystallographic axes was found. PCE giving the main contribution to the barocaloric effect were determined at both phase transitions. Rather strong effect of the lattice dilatation on the tuning of PCE was observed. Comparative analysis of PCE at the phase transitions in different materials showed that NH4HSO4 can be considered as a promising solid-state refrigerant. A hypothetical cooling cycle based on alternate using uniaxial pressure along two axes was considered.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Engineering Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk, 660074, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russian Federation
Astafijev Krasnoyarsk State Pedagogical University, Krasnoyarsk, 660049, Russian Federation
Доп.точки доступа:
Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Gorev, M. V.; Горев, Михаил Васильевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Kartashev, A. V.; Карташев, Андрей Васильевич; Flerov, I. N.;
Флёров
,
Игорь
Николаевич
}
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6.
Anomalous behaviour of
thermodynamic properties at successive phase transitions in (NH4)3GeF7 / E. V. Bogdanov [et al.]> // J. Solid State Chem. - 2017. -
Vol. 256
. - P. 162-167,
DOI
10.1016/j.jssc.2017.09.010. - Cited References: 23. - The reported study was partially supported by the Russian Foundation for Basic Research, research project no. 15-02-02009 a. . - ISSN 0022-4596
Кл.слова (ненормированные):
Phase transition
--
Fluorides
--
Heat capacity
--
Entropy
--
Thermal expansion
--
High pressure
Аннотация:
Heat capacity, thermal dilatation, susceptibility to hydrostatic pressure and dielectric properties associated with succession of three phase transitions below room temperature in double fluoride salt (NH4)3GeF7 were studied. A possible transformation into the parent Pm-3m cubic phase was not observed up to the decomposition of compound. Nonferroelectric nature of structural distortions was confirmed. The DTA under pressure studies revealed a high temperature stability of two phases: P4/mbm and Pbam. The entropies of the phase transitions agree well with the model of structural distortions. Analysis of the thermal properties associated with the individual phase transitions in the framework of thermodynamic equations has shown a high reliability of the data obtained. © 2017 Elsevier Inc.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Institute of Engineering Systems and Energy, Krasnoyarsk State Agrarian University, Krasnoyarsk, Russian Federation
Astafijev Krasnoyarsk State Pedagogical University, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Chemistry, Far Eastern Department of RAS, Vladivostok, Russian Federation
Доп.точки доступа:
Bogdanov, E. V.; Богданов, Евгений Витальевич; Kartashev, A. V.; Карташев, Андрей Васильевич; Pogoreltsev, E. I.; Погорельцев, Евгений Ильич; Gorev, M. V.; Горев, Михаил Васильевич; Laptash, N. M.; Flerov, I. N.;
Флёров
,
Игорь
Николаевич
}
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7.
Flerov, I. N.
Barocaloric and piezocaloric effects in ferroics - recent results / I. N. Flerov, M. V. Gorev> //
Abstracts of the 10th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity. - 2010. - P. 76
Материалы симпозиума
Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич;
Флёров
,
Игорь
Николаевич
; Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(10 ; 2010 ; June 20-25 ; Yokohama, Japan)
}
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8.
Flerov, I. N.
Barocaloric effect and phase transitions in ferroics / I. N. Flerov> // The 6th International Seminar on Ferroelastic Physics : abstract book. - Voronezh, 2009. - P. 5
Материалы конференции
Доп.точки доступа:
Флёров
,
Игорь
Николаевич
; Воронежский государственный технический университетРоссийская академия наук; International Seminar on ferroelastic physics (6 ; 2009 ; Sept. 22-25 ; Voronezh); Международный семинар по физике сегнетоэластиков (6(11) ; 2009 ; 22-25 сент. ; Воронеж)
}
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9.
Barocaloric effect and
phase transitions in oxyfluorides Rb2KTiOF5 and (NH4)2NbO5F / M. V. Gorev, E. V. Bogdanov, I. N. Flerov [et al.]> // The 6th International Seminar on Ferroelastic Physics : abstract book. - Voronezh, 2009. - P. 22
Материалы конференции
Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Bogdanov, E. V.; Богданов, Евгений Витальевич; Flerov, I. N.;
Флёров
,
Игорь
Николаевич
; Voronov, V. N.; Воронов, Владимир
Николаевич
; Laptev, Y. V.; Воронежский государственный технический университет; Российская академия наук; International Seminar on ferroelastic physics (6 ; 2009 ; Sept. 22-25 ; Voronezh); Международный семинар по физике сегнетоэластиков (6(11) ; 2009 ; 22-25 сент. ; Воронеж)
}
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10.
Flerov, I. N.
Barocaloric effect in ferroelastic fluorides and oxyfluorides / I. N. Flerov, E. V. Bogdanov, M. V. Gorev> //
Barocaloric effects in the solid-state. Materials and methods / ed. P. Lloveras : IOP Publishing, 2023. -
Chapt. 4
. - P. 4-1-4-23,
DOI
10.1088/978-0-7503-4690-0ch4. - Cited References: 68
Перевод заглавия:
Барокалорические эффекты в твердом теле: материалы и методы. Глава 4. "Барокалорический эффект в сегнетоэластичных фторидах и оксифторидах"
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC, SB RAS
Доп.точки доступа:
Lloveras, P. \ed.\; Bogdanov, E. V.; Богданов, Евгений Витальевич; Gorev, M. V.; Горев, Михаил Васильевич;
Флёров
,
Игорь
Николаевич
}
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11.
Barocaloric effect in
ferroelastic fluorides and oxyfluorides / I. N. Flerov [et al.]> // Ferroelectrics. - 2016. -
Vol. 500
,
Is. 1
. - P. 153-163,
DOI
10.1080/00150193.2016.1214525. - Библиогр.: 33. - The reported study was partially supported by the Russian Foundation for Basic Research (RFBR), research project No. 15-02-02009 a. . - ISSN 0015-0193
Кл.слова (ненормированные):
Phase transition
--
fluorides
--
oxyfluorides
--
thermal properties
--
barocaloric effect
Аннотация:
Using the data about the temperature - pressure phase diagram and the phase transition entropy at ambient and high pressure, intensive and extensive barocaloric effects were analyzed in the region of single and successive order-disorder phase transitions in fluorides and oxyfluorides with the elpasolites-cryolite structure. It was found that hydrostatic as well as chemical pressure are the effective tools to change the entropy of compounds with disordered ionic groups or atoms in structure and to realize the significant intensive and extensive barocaloric effects comparable with the values of baro- and magnetocaloric effects, characteristic for materials, considered as promising solid refrigerants. © 2016 Taylor & Francis Group, LLC.
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Держатели документа:
Kirensky Institute of Physics, Siberian Department of RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Krasnoyarsk State Agrarian University, Krasnoyarsk, Russian Federation
Institute of Chemistry, Far Eastern Department of RAS, Vladivostok, Russian Federation
Доп.точки доступа:
Flerov, I. N.;
Флёров
,
Игорь
Николаевич
; Gorev, M. V.; Горев, Михаил Васильевич; Bogdanov, E. V.; Богданов, Евгений Витальевич; Laptash, N. M.
}
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12.
Barocaloric effect near
the structural phase transition in the Rb2KTiOF5 oxyfluoride / M. V. Gorev [et al.]> // Phys. Solid State. - 2010. -
Vol. 52
,
Is. 2
. - P. 377-383,
DOI
10.1134/S1063783410020253. - Cited References: 21. - This study was supported by the Siberian Branch of the Russian Academy of Sciences (Interdisciplinary Integration Project no. 34), the Russian Foundation for Basic Research and the Krasnoyarsk Regional Scientific Foundation within the framework of the "Sibir'" Project (project no. 09-02-98001), and the Council on Grants from the President of the Russian Federation for Support of the Leading Scientific Schools of the Russian Federation (grant no. NSh-1011.2008.2). . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
HEAT-CAPACITY
PRESSURE
Аннотация:
The barocaloric effect (BCE) in the oxyfluoride Rb2KTiOF5 has been studied in the vicinity of the structural phase transition at a temperature of 215 K in the pressure range 0-0.6 GPa. It has been established that the extensive and intensive barocaloric effects are Delta S-BCE similar to -46 J/kg K and Delta T (AD) similar to 18 K, respectively, over a wide temperature range 215-280 K. The studies performed have shown that the external hydrostatic pressure is a very effective tool for changing the entropy and temperature of the crystals which undergo structural phase transitions accompanied by a large change in the entropy.
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Оригинал на русском языке
Барокалорический эффект в области структурного фазового перехода в оксифториде Rb2KTiOF5 [Текст] / М. В. Горев [и др.] // Физика твердого тела. - Санкт-Петербург : Федеральное государственное унитарное предприятие "Академический научно-издательский, производственно-полиграфический и книгораспространительский центр Российской академии наук "Издательство "Наука", 2010. - Т. 52 № 2. - С. 351-357
Держатели документа:
[Gorev, M. V.
Flerov, I. N.
Bogdanov, E. V.
Voronov, V. 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
[Laptash, N. M.] Russian Acad Sci, Inst Chem, Far Eastern Branch, Vladivostok 690022, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, pr. Svobody 79, Krasnoyarsk 660041, Russian Federation
Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, pr. Stoletiya, Vladivostoka 159, Vladivostok 690022, Russian Federation
Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.;
Флёров
,
Игорь
Николаевич
; Bogdanov, E. V.; Богданов, Евгений Витальевич; Voronov, V. N.; Воронов, Владимир
Николаевич
; Laptash, N. M.
}
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13.
Behaviour of thermal
expansion of (1-x)Pb(Ni1/3Nb2/3)O3-xPbTiO3 solid solutions / K. Bormanis [et al.]> // Proc. Est. Acad. Sci. - 2017. -
Vol. 66
,
Is. 4
. - P. 363-371,
DOI
10.3176/proc.2017.4.09. - Cited References: 25. - The publication costs of this article were covered by the Estonian Academy of Sciences and the University of Tartu. . - ISSN 1736-6046
Кл.слова (ненормированные):
Ferroelectrics
--
Relaxors
--
Ceramics
--
Solid solutions
--
Thermal expansion
--
Phase diagram
Аннотация:
The features of the dependence of the bulk coefficient of thermal expansion of the (1-x)Pb(Ni1/3Nb2/3)O3-xPbTiO3 solid solution studied in the series of x = 0-0.8 in the temperature range from 100 to 750 K are reported. The obtained data and observed anomalies of thermal expansion are compared with dielectric properties, heat capacity, and the phase diagram of concentration. The anomalous and lattice constituents of deformation and of the coefficient of thermal expansion are analysed and the data on deformation are used to estimate the Burns temperature and the mean square polarization of the samples found to decrease with the decrease of the PbTiO3 concentration.
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Держатели документа:
Institute of Solid State Physics, University of LatviaRiga, Latvia
L.V. Kirensky Institute of Physics, Siberian SC RAS, Krasnoyarsk, Russian Federation
Institute of Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Bormanis, K.; Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.;
Флёров
,
Игорь
Николаевич
; Sternberg, A.; Lace, L.; Ignatans, R.; Kalvane, A.; Antonova, M.
}
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14.
Caloric and multicaloric
effects in oxygen ferroics and multiferroics / I. N. Flerov [et al.]> // Phys. Solid State. - 2015. -
Vol. 57
,
Is. 3
. - P. 429-441,
DOI
10.1134/S1063783415030075. - Cited References:53. - This study was supported by the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools of the Russian Federation (grant no. NSh-924.2014.2). . - ISSN 1063. - ISSN 1090-6460. -
РУБ
Physics, Condensed Matter
Рубрики:
PHASE-TRANSITIONS
MAGNETOCALORIC MATERIALS
ELECTROCALORIC MATERIALS
REFRIGERATION
CERAMICS
OXYFLUORIDES
Аннотация:
The main problems of the current state-of-the-art research into the caloric effects observed in oxygen ferroics, multiferroics, and composites, as well as the influence of different factors (anisotropy, dimensional parameters, direct and indirect interferroic interactions) on these effects, have been considered. Possible ways to increase the caloric efficiency of materials have been analyzed.
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Публикация на русском языке
Калорические и мультикалорические эффекты в кислородных ферроиках и мультиферроиках [Текст] / И. Н.
Флёров
[и др.] // Физ. тверд. тела : Физико-технический институт им. А. Ф. Иоффе РАН, 2015. - Т. 57 Вып. 3. - С. 421-431
Доп.точки доступа:
Flerov, I. N.;
Флёров
,
Игорь
Николаевич
; Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Gorev, M. V.; Горев, Михаил Васильевич; Kartashev, A. V.; Карташев, Андрей Васильевич; Всероссийская конференция по физике сегнетоэлектриков(20 ; 2014 ; 18-22 авг. ; Красноярск)
}
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15.
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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16.
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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17.
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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18.
Caloric Effects in
Multiferroic Composites (x)La0.7Pb0.3MnO3 — (1-x)PbTiO3 / I. N. Flerov [et al.]> //
Joint 14th Rus./CIS/Baltic/Japan Symp. on Ferroelectricity (RCBJSF)/ Young sci. school on the spect. studies of critical dynamics at struct. phase trans. : Abstract book / org. comm. A. N. Vtyurin ; progr. comm. I. N. Flerov. - 2018. - P. 11. - Cited References: . - ISBN 978-5-9651-1144-2
Перевод заглавия:
Калорические эффекты в мультиферроидных композитах (x)La0.7Pb0.3MnO3 — (1-x)PbTiO3
Материалы конференции
Доп.точки доступа:
Vtyurin, A. N. \org. comm.\; Втюрин, Александр
Николаевич
; Flerov, I. N. \progr. comm.\;
Флёров
,
Игорь
Николаевич
; Flerov, I. N.; Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Kartashev, A. V.; Карташев, Андрей Васильевич; Gorev, M. V.; Горев, Михаил Васильевич; Joint Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(14 ; May 14-18, 2018 ; St. Perersburg); Young scientists school on the spectroscopic(May 14-18, 2018 ; St. Perersburg); Физико-технический институт им. А.Ф. Иоффе РАН; Санкт-Петербургский политехнический университет им. Петра Великого
}
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19.
Caloric Effects in
Some Ferroelectric and Ferroelastic Fluorides, Oxyfluorides and Oxides / I. N. Flerov [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. Invite-6. - References: 4. - The reported study was partially supported by RFBR, research project No. 15-02-02009 a
Перевод заглавия:
Калорические эффекты в некоторых сегнетоэлектрических и сегнетоэластических фторидах, оксифторидах и оксидах
Материалы конференции
Доп.точки доступа:
Flerov, I. N.;
Флёров
,
Игорь
Николаевич
; Gorev, M. V.; Горев, Михаил Васильевич; Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Kartashev, A. V.; Карташев, Андрей Васильевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; 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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20.
Calorimetric and dielectric
studies of the (NH4)(2)MoO2F4 oxyfluoride / V. D. Fokina [et al.]> // Phys. Solid State. - 2010. -
Vol. 52
,
Is. 1
. - P. 158-166,
DOI
10.1134/S1063783410010282. - Cited References: 22. - This study was supported by the Russian Foundation for Basic Research ( project no. 09-02-00062). . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
PHASE-TRANSITIONS
(NH4)(2)WO2F4
DIFFRACTION
MECHANISM
CRYSTALS
Аннотация:
The temperature dependences of the heat capacity, dielectric properties, and response to an external pressure and an electric field for the (NH4)(2)MoO2F4 oxyfluoride (space group Cmcm, Z = 4) have been studied. A comparative analysis of the data on the entropy of phase transitions, p-T phase diagrams, permittivity, and anomalous heat capacity in combination with the results of previous studies of the related compounds (NH4)(2)WO2F4 and (ND4)(2)WO2F4 has made it possible to establish that both [MO2F4](2-) anions and ammonium groups play a substantial role in the mechanism and nature of the structural transformations.
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Держатели документа:
[Fokina, V. D.
Bogdanov, E. V.
Bondarev, V. S.
Flerov, I. N.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Fokina, V. D.
Pogorel'tsev, E. I.
Bondarev, V. S.
Flerov, I. N.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Laptash, N. M.] Russian Acad Sci, Far Eastern Branch, Inst Chem, Vladivostok 690022, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, pr. Svobody 79, Krasnoyarsk 660041, Russian Federation
Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok 690022, Russian Federation
Доп.точки доступа:
Fokina, V. D.; Фокина, Валентина Дмитриевна; Bogdanov, E. V.; Богданов, Евгений Витальевич; Pogorel'tsev, E. I.; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Flerov, I. N.;
Флёров
,
Игорь
Николаевич
; Laptash, N. M.
}
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