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    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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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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    Intensive electrocaloric effect in triglycine sulfate under nonequilibrium thermal conditions and periodic electric field / V. S. Bondarev [et al.] // Phys. Status Solidi B. - 2016. - Vol. 253, Is. 10. - P. 2073-2078, DOI 10.1002/pssb.201600339. - Cited References:29. - The reported study was funded by RFBR and Government of Krasnoyarsk Territory according to the research project no. 16-42-240428 p_a. . - ISSN 0370-1972. - ISSN 1521-3951
   Перевод заглавия: Интенсивный электрокалорический эффект в триглицинсульфате в неравновесных тепловых условиях и периодическом электрическом поле

РУБ Physics, Condensed Matter

Кл.слова (ненормированные):
electrocaloric effect -- ferroelectrics -- nonequilibrium processes -- phase -- transitions
Аннотация: We present the results of both direct measurements and modeling of the intensive electrocaloric effect ΔTAD in ferroelectric triglycine sulfate under nonequilibrium thermal conditions and periodically varying electric field. In the narrow region around the phase transition temperature TC, a visible difference was observed between the electrocaloric responses at applying ΔTON and removal ΔTOFF of the constant electric field: |ΔTON| <|ΔTOFF| and |ΔTON| > |ΔTOFF| at T < TC and T > TC, respectively. The variation of the frequency and profile of the periodic electric field at T < TC allowed one to obtain the gradual decrease in the average temperature of the top of the sample compared to the bottom kept at the constant temperature. At low frequency electric field, qualitative agreement was found between the time dependences of the measured experimentally and calculated ΔT values. Experimental and modeling studies of electrocaloric effect ΔTAD in triglycine sulfate showed that the applying/removal of a periodic electric field to/from the bulk sample decreases the average value of the waiving temperature of the top Ttop compared to T ≃ const of the bottom. Both frequency and duty cycle of the electric field impulses strongly affect Ttop.

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Держатели документа:
Kirensky Inst Phys, Siberian Branch RAS, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660074, Russia.

Доп.точки доступа:
Bondarev, V. S.; Бондарев, Виталий Сергеевич; Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.; Флёров, Игорь Николаевич; RFBR; Government of Krasnoyarsk Territory [16-42-240428 p_a]
}
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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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Raman scattering study of δ-BiB3O6 crystal / E. A. Strikina [et al.] // Ferroelectrics. - 2016. - Vol. 501, Is. 1. - P. 26-31, DOI 10.1080/00150193.2016.1198661. - Cited References: 12. - This study was partially supported by the Ministry of Education and Science of the Russian Federation, the “Krasnoyarsky regional fund of scientific support and scientific-technical activity,” and the Russian Foundation for Basic Research Grant “15-42-04347 r_siberia_a.” . - ISSN 0015-0193
Кл.слова (ненормированные):
Orthorhombic bismuth triborate -- Raman spectroscopy -- lattice dynamics
Аннотация: The total set of polarized Raman spectra have been obtained at room temperature, and an assignment of observed modes based on the lattice dynamics simulation and polarization selection rules is proposed. An LO-TO splitting of A1 Raman bands have been observed. © 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:
Strikina, E. A.; Стрикина, Екатерина Андреевна; Krylov, A. S.; Крылов, Александр Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич
}
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Investigation of structural and magnetic phase transitions in multiferroic rare-earth tetraborate crystals with huntite structure by Raman spectroscopy / A. S. Krylov [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. Oral-15. - References: 4

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Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Moshkina, E. M.; Мошкина, Евгения Михайловна; Sofronova, S. N.; Софронова, Светлана Николаевна; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович; 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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    Effect of a restricted geometry on thermal and dielectric properties of NH4HSO4 ferroelectric / E. A. Mikhaleva [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-18. - References: 2
   Перевод заглавия: Влияние ограниченной геометрии на тепловые и диэлектрические свойства сегнетоэлектрика NH4HSO4

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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; Bogdanov, E. V.; Богданов, Евгений Витальевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Korotkov, L. N.; Коротков Л. Н.; Dotsenko, I. I.; Доценко И. И.; Rysiakiewicz-Pasek, E.; 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 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

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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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Determination of gruneisen parameters in δ-BiB3O6 crystal / E. A. Strikina [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-57. - References: 2

Материалы конференции

Доп.точки доступа:
Strikina, E. A.; Стрикина, Екатерина Андреевна; Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylov, A. S.; Крылов, Александр Сергеевич; Oreshonkov, A. S.; Орешонков, Александр 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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10.

The Pockels effect in TmAl3(BO3)4 / V. A. Bedarev [et al.] // Ferroelectrics. - 2017. - Vol. 506, Is. 1. - P. 152-158, DOI 10.1080/00150193.2017.1282298. - Cited References: 5 . - ISSN 0015-0193
Кл.слова (ненормированные):
Electric field -- Pockels effect -- birefringence -- refractive indexes
Аннотация: The Pockels effect was studied in TmAl3(BO3)4 crystal. The electro-optic coefficient of the compound was determined. The principal refractive indexes of the crystal were determined by measuring the Brewster angles. Both contributions to the electric field induced birefringence associated with the redistribution of connected charges and deformation were estimated. © 2017 Taylor & Francis Group, LLC.

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Держатели документа:
B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkov, Ukraine
L.V. Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Bedarev, V. A.; Merenkov, D. N.; Pashchenko, M. I.; Gnatchenko, S. L.; Gudim, I. A.; Гудим, Ирина Анатольевна; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Temerov, V. L.; Темеров, Владислав Леонидович
}
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11.

    Influence of thermal conditions on the electrocaloric effect in a multilayer capacitor based on doped BaTiO3 / V. S. Bondarev [et al.] // J. Adv. Dielectr. - 2017. - Vol. 7, Is. 6. - Ст. 1750041, DOI 10.1142/S2010135X17500412. - Cited References: 32. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research, project no. 16-42-240428 r_a, and partially financially supported by Government of Russian Federation, Grant 074-U01. . - ISSN 2010-135X. - ISSN 2010-1368
   Перевод заглавия: Влияние тепловых свойств на электрокалорический эффект в мультислойном конденсаторе на основе допированного BaTiO3
Кл.слова (ненормированные):
Electrocaloric effect -- ferroelectrics -- layered structures -- nonequilibrium conditions -- phase transitions
Аннотация: We present the results of studies of thermal expansion, heat capacity, permittivity, polarization and the influence of different thermal conditions on the intensive electrocaloric effect (ECE), ΔTAD, in a commercial multilayer capacitor based on doped BaTiO3. Investigations in a wide temperature range revealed one anomaly in the behavior of the physical properties at about 290K characteristic for the relaxors. Direct measurements showed a high reversibility of ECE under equilibrium thermal conditions. Good agreement was found between the values of ΔTAD determined by direct and indirect measurements at the electric field up to 15.4 kV/cm. Quasi-isothermal conditions lead, firstly, to decrease of large ΔTAD ≈0.94K obtained in adiabatic conditions under E = 308 kV/cm to 0.87 K, and, secondly, the appearance of a difference between the values of ΔTON and ΔTOFF determined when the electric field is applied and removed. Using this phenomenon and changing the frequency of the periodic electric field, E = 15.4 kV/cm, the effect of cooling was obtained equal to [(ΔTON + ΔT OFF)/2]max = -0,032 K. The results obtained are useful for further development of the electrocaloric refrigeration technique without thermal switches.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Siberian Federal University, Krasnoyarsk 660074, Russia
International Laboratory “Materials and Structures for Electro- and Magnetocaloric Energy Conversion”, ITMO University, St. Petersburg 197101, Russia

Доп.точки доступа:
Bondarev, V. S.; Бондарев, Виталий Сергеевич; Flerov, I. N.; Флёров, Игорь Николаевич; Gorev, M. V.; Горев, Михаил Васильевич; Pogoreltsev, E. I.; Погорельцев, Евгений Ильич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Shabanov, A. V.; Шабанов, Александр Васильевич; Es'kov, A. V.
}
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12.

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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13.

    Investigation of ferroelectrics with general formula Me1Me11BX4 / K. S. Aleksandrov [et al.] // Journal of the Physical Society of Japan. - 1969. - Vol. 28, Supplement. - P. S162 . - ISSN 0031-9015
   Перевод заглавия: Исследование сегнетоэлектриков с общей формулой Me1Me11BX4

Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Aleksandrova, I. P.; Zherebtsova, L. I.; Zaitseva, M. P.; Зайцева, Мария Пантелеймоновна; Anistratov, A. T.; International Meeting on ferroelectricity(2 ; 1969 ; 4-9 Sept. ; Kyoto, Japan)
}
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14.

Ishibashi, Y.
A personal memory of the first Soviet-Japan symposium on ferroelectricity / Y. Ishibashi // Ferroelectrics. - 2017. - Vol. 511, Is. 1, Pt. 1. - P. 1-4, DOI 10.1080/00150193.2017.1332950 . - ISSN 0015-0193. - ISSN 1563-5112

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Доп.точки доступа:
Александров, Кирилл Сергеевич \о нем\; Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(13 ; 2016 ; Jun. ; 19-23 ; Matsue, Japan)International Conference Functional Materials and Nanotechnologies(9 ; 2014 ; Sept. 29 - Oct. 2 ; Riga); \о нем\; \о нем\
}
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15.

Intensive electrocaloric effect in the multilayer capacitor under equilibrium and nonequilibrium thermal conditions / V. S. Bondarev [et al.] // Scripta Mater. - 2018. - Vol. 146. - P. 51-54, DOI 10.1016/j.scriptamat.2017.11.017. - Cited References: 27. - The reported study was funded by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research, project no. 16-42-240428 r_a. A. V. Es'kov acknowledges the support from the Government of Russian Federation under grant 074-U01. . - ISSN 1359-6462
Кл.слова (ненормированные):
Electrocaloric effect -- Phase transition -- Ferroelectrics
Аннотация: Precise direct measurements of the intensive electrocaloric effect (ECE) in commercial multilayer capacitor based on doped BaTiO3 were performed using an adiabatic calorimeter. High reversibility of ECE studied under equilibrium thermal conditions was observed. The nonequilibrium thermal conditions caused by fixing the temperature of one of the ends of the linear EC element lead to the predominance of ECE when the electric field is turned off. The heat flow through the EC element appearing under the influence of a periodic electric field and depending on its frequency makes it possible to create a cooling cycle without thermal keys.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
International Laboratory Materials and Structures for Electro- and Magnetocaloric Energy Conversion, ITMO University, St. Petersburg, Russian Federation

Доп.точки доступа:
Bondarev, V. S.; Бондарев, Виталий Сергеевич; Flerov, I. N.; Флёров, Игорь Николаевич; Gorev, M. V.; Горев, Михаил Васильевич; Pogoreltsev, E. I.; Погорельцев, Евгений Ильич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Shabanov, A. V.; Шабанов, Александр Васильевич; Es'kov, A. V.
}
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16.

    Low-temperature features of Raman spectra below magnetic transitions in multiferroic Ho1–xNdxFe3(BO3)4 and Sm1–yLayFe3(BO3)4 single crystals / A. Krylov [et al.] // Ferroelectrics. - 2017. - Vol. 509, Is. 1. - P. 92-96, DOI 10.1080/00150193.2017.1294040. - Cited References: 12 . - ISSN 0015-0193
   Перевод заглавия: Низкотемпературные особенности спектров комбинационного рассеяния ниже магнитных переходов в монокристаллах мультиферроиков Ho1-xNdxFe3 (BO3) 4 и Sm1-yLayFe3 (BO3)4
Кл.слова (ненормированные):
Raman spectra -- magnetic ordering -- huntite -- rare-earth ferroborates
Аннотация: Raman spectra changes in multiferroic Ho1–xNdxFe3(BO3)4 (x = 0, 0.25, 0.5, 0.75) and Sm1–yLayFe3(BO3)4 (y = 0, 0.75) single crystals at low temperatures have been analyzed. The anomalies corresponding to the phase transition of the second order have been detected at the temperatures of magnetic phase transitions, being consistent with previously reported results of the magnetization study. A number of anomalies in the temperature dependences of the spectral lines associated with the occurrence of magnetic order. A mode corresponding to two-magnon scattering was revealed. Comparison of the features of low-temperature low-frequency spectra of solid solutions Ho-Nd and Sm-La has been carried out.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Moshkina, E. M.; Мошкина, Евгения Михайловна; Sofronova, S. N.; Софронова, Светлана Николаевна; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович; Vtyurin, A. N.; Втюрин, Александр Николаевич
}
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17.

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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18.

    Effect of a restricted geometry on thermal and dielectric properties of NH4HSO4 ferroelectric / E. A. Mikhaleva [et al.] // Ferroelectrics. - 2017. - Vol. 513, Is. 1. - P. 44-50, DOI 10.1080/00150193.2017.1350436. - Cited References:17. - The reported study was partially supported by the Russian Foundation for Basic Research (RFBR), research project No. 16-32-00092 mol_a. . - ISSN 0015-0193. - ISSN 1563-5112
   Перевод заглавия: Влияние ограниченной геометрии на тепловые и диэлектрические свойства сегнетоэлектриков NH4HSO4

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
PHASE-TRANSITIONS
   AMMONIUM
   CAPACITY
   SULFATE
   KH2PO4
Кл.слова (ненормированные):
Ferroelectric -- phase transition -- porous glass -- nanocomposite
Аннотация: Heat capacity, thermal dilatation, sensitivity to pressure and permittivity of NH4HSO4 embedded into glass matrices with a pore size of 320 nm and 46 nm were studied. Large difference in the thermal expansion of both glass and ferroelectric leads to a "clamped" state of NH4HSO4 in nanocomposites and to the phase transition temperatures change. The restricted geometry does not effect on the order of successive transformations in NH4HSO4 but is accompanied by a significant reduction in entropy of phase transitions. The behavior of DTA-signal and permittivity show the expansion of the temperature range of the ferroelectric phase under hydrostatic pressure.

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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; Bogdanov, E. V.; Богданов, Евгений Витальевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Korotkov, L. N.; Rysiakiewicz-Pasek, E.; Russian Foundation for Basic Research (RFBR) [16-32-00092 mol_a]; Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(13 ; 2016 ; Jun. ; 19-23 ; Matsue, Japan)
}
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19.

Raman scattering and phase transitions in fluorides with elpasolite structure / A. Vtyurin [et al.] // Ferroelectrics : Proceedings of the Joint International Symposium. - 2017. - Vol. 512, Is. 1. - P. 58-64, DOI 10.1080/00150193.2017.1349863. - Cited References: 22 . - ISSN 0015-0193
Кл.слова (ненормированные):
Ferroelectric materials -- Ferroelectricity -- Elpasolite -- First-order phase transitions -- Fluorescence process -- Raman lines -- Raman scattering spectra -- Temperature phase -- Temperature range -- Raman scattering
Аннотация: Raman scattering spectra of Rb2KHoF6 and Rb2KDyF6 crystals have been studied in temperature range from 20 K to 399 K and from 7 K to 500 K respectively. Raman spectra of Rb2KHoF6 crystal are distorted due to the fluorescence process. Parameters of Raman lines have been quantitatively analyzed. The investigation points to the considerable role of CX6 groups in the temperature phase transition in Rb2KHoF6 and Rb2KDyF6 crystals. The anomalies of spectra changes with temperature testify the first order phase transitions in these crystals. © 2017 Taylor & Francis Group, LLC.

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Доп.точки доступа:
Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylov, A. S.; Крылов, Александр Сергеевич; Voronov, V. N.; Воронов, Владимир Николаевич; Krylova, S. N.; Крылова, Светлана Николаевна; Joint Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(13 ; 2016 ; June 19-24 ; Matsue, Japan); International Workshop on Relaxor Ferroelectrics(8 ; June 19-24, 2016 ; Matsue, Japan)
}
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20.

    Raman scattering and phase transitions in fluorides with elpasolite structure / A. N. Vtyurin [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. Oral-29. - References: 8
   Перевод заглавия: Комбинационное рассеяние света и фазовые переходы в фторидах со структурой эльпасолита

Материалы конференции

Доп.точки доступа:
Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylov, A. S.; Крылов, Александр Сергеевич; Voronov, V. N.; Воронов, Владимир Николаевич; Goryainov, S. V.; Горяйнов, Сергей Владимирович; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Krylova, S. N.; Крылова, Светлана Николаевна; 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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