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(La0.4Eu0.6)0.7Pb0.3MnO3 single crystal: magnetic and transport properties; electron magnetic resonance measurements / K. G. Patrin [et al.] // Workshop INTAS - Sib. Branch of the RAS Sci. Cooperation on the Res. Project “New Layered 3d-Materials for Spintronics” / chairman G. A. Petrakovskii. - 2007. - P. 15
Аннотация: INTAS (The International Association for the Promotion of Cooperation with Scientists from the New Independent States of the Former Soviet Union) — международная ассоциация по содействию сотрудничеству с учёными новых независимых государств бывшего Советского Союза. Некоммерческая организация, финансировалась главным образом из бюджета Европейского Союза. Являлась крупнейшим фондом, поддерживающим научное сотрудничество между учёными стран бывшего СССР и Европейского Союза с 1993 г. Программы INTAS охватывали широкий круг научно-исследовательских проблем. 22 сентября 2006 года было принято решение о прекращении осуществления программы на основании рекомендации Европейской Комиссии. С 1 апреля 2007 года прекратилось распределение новых грантов.

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Доп.точки доступа:
Petrakovskii, G. A. \chairman\; Петраковский, Герман Антонович; Patrin, K. G.; Патрин, Константин Геннадьевич; Volkov, N. V.; Волков, Никита Валентинович; Petrakovskii, G. A.; Boni, P.; Clementyev, E.; Sablina, K. A.; Саблина, Клара Александровна; Eremin, E. V.; Еремин, Евгений Владимирович; Vasilev, V.; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; "New Layered 3d-Materials for Spintronics", Workshop INTAS - Siberian Branch of the Russian Academy of Sciences Scientific Cooperation on the Research Project(2007 ; March 20-23 ; Krasnoyarsk)
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A tool to investigate the spatial magnetic phase separation phenomena in manganites [Text] / O. Martyanov, V. Yudanov, R. Lee [et al.] // Physics of the Solid State. - 2006. - P. 1–3

Доп.точки доступа:
Martyanov, O.; Yudanov, V.; Lee, R.; Volkov, N. V.; Волков, Никита Валентинович; Sablina, K. A.; Саблина, Клара Александровна
}
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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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Analysis of the exchange magnetic structure in Pb3Mn7O15 / E. V. Eremin [et al.] // J. Exp. Theor. Phys. - 2017. - Vol. 124, Is. 5. - P. 792-804, DOI 10.1134/S1063776117040112. - Cited References: 16 . - ISSN 1063-7761
Кл.слова (ненормированные):
Crystallography -- Magnetic properties -- Magnetic structure -- Magnetism -- Manganese -- Indirect couplings -- Manganese ions -- Structural and magnetic properties -- Single crystals
Аннотация: The indirect-coupling model is used to analyze the exchange magnetic structure of Pb3Mn7O15 in the hexagonal setting. The ratios of manganese ions Mn4+/Mn3+ in each nonequivalent position are determined. Pb3(Mn0.95Ge0.05)7O15 and Pb3(Mn0.95Ga0.05)7O15 single crystals are grown by the solution–melt method in order to test the validity of the proposed model. The structural and magnetic properties of the single crystals are studied. The magnetic properties of the grown single crystals are compared with those of nominally pure Pb3Mn7O15. © 2017, Pleiades Publishing, Inc.

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Публикация на русском языке Анализ обменной магнитной структуры Pb3Mn7O15 [Текст] / Е. В. Еремин [и др.] // Журн. эксперим. и теор. физ. : Наука, 2017. - Т. 151 Вып. 5. - С. 930-943

Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent’eva 3, Novosibirsk, Russian Federation
Novosibirsk State University, ul. Pirogova 2, Novosibirsk, Russian Federation

Доп.точки доступа:
Eremin, E. V.; Еремин, Евгений Владимирович; Volkov, N. V.; Волков, Никита Валентинович; Sablina, K. A.; Саблина, Клара Александровна; Bayukov, O. A.; Баюков, Олег Артемьевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Komarov, V. Y.
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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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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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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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DC-EFFECT ON THE MICROWAVE RESPONSE IN THE SUPERCONDUCTING CERAMICS HO-BA-CU-O / G. A. PETRAKOVSKII [et al.] // Solid State Commun. - 1989. - Vol. 72, Is. 8. - P. 759-762, DOI 10.1016/0038-1098(89)90903-4. - Cited References: 18 . - ISSN 0038-1098

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
PETRAKOVSKII, G. A.; Петраковский, Герман Антонович; PATRIN, G. S.; Патрин, Геннадий Семёнович; USTYUZHANIN, Y. N.; SABLINA, K. A.; Саблина, Клара Александровна; STEPANOV, G. N.
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Dielectric properties of a mixed-valence Pb3Mn7O15 manganese oxide / N. V. Volkov [et al.] // J. Phys.: Condens. Matter. - 2010. - Vol. 22, Is. 37. - Ст. 375901, DOI 10.1088/0953-8984/22/37/375901. - Cited References: 14. - This study was supported by the Russian Foundation for Basic Research 'Siberia', project No. 09-02-98003, and the Siberian Branch of the Russian Academy of Sciences, integration project No. 101. . - ISSN 0953-8984

РУБ Physics, Condensed Matter

Кл.слова (ненормированные):
cation -- lead -- manganese derivative -- oxide -- article -- chemical model -- chemistry -- crystallization -- electric conductivity -- electronics -- methodology -- temperature -- Cations -- Crystallization -- Electric Conductivity -- Electronics -- Lead -- Manganese Compounds -- Models, Chemical -- Oxides -- Temperature -- AC electric field -- Analysis of resistivity -- Carrier hopping -- Charge ordering -- Complex dielectric constant -- Crystal site -- Debye models -- Dielectric constants -- Dielectric spectra -- Frequency windows -- Lattice sites -- Low frequency -- Manganese ions -- Mixed valence -- Mixed valence state -- Relaxation behaviors -- Temperature range -- Electric fields -- Manganese -- Manganese oxide -- Permittivity -- Single crystals -- Crystal symmetry
Аннотация: We investigated the low-frequency dielectric properties of a Pb3Mn7O15 single crystal with manganese ions in the mixed-valence state (Mn3+/Mn4+). Dielectric relaxation was found in the frequency window from 20 to 100 kHz in the temperature range 110-180 K. The dielectric spectra of the crystal were analyzed using a Debye model. Estimations made within the model and analysis of resistivity data suggest that the relaxation behavior of the dielectric constant is related to polaronic charge carrier hopping. Around 250 K, charge ordering occurs in the crystal when the Mn3+ and Mn4+ ions are arranged in a specific order among the crystal sites. With a decrease in temperature, an ac electric field can induce a charge hop between the equivalent lattice sites available, related to crystal symmetry. This hopping is equivalent to the reorientation of an electric dipole that yields Debye-type behavior of the complex dielectric constant. The observed anisotropy in the behavior of the dielectric properties and resistivity can be attributed to a pronounced two-dimensional character of the crystal structure.

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Держатели документа:
[Volkov, N. V.
Eremin, E. V.
Sablina, K. A.
Sapronova, N. V.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
L V Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russia.
L V Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Volkov, N. V.; Волков, Никита Валентинович; Eremin, E. V.; Еремин, Евгений Владимирович; Sablina, K. A.; Саблина, Клара Александровна; Sapronova, N. V.
}
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10.

Effect of Ni-substitution on magnetic phase transition in CuB 2O4 / G. A. Petrakovskii [et al.] // Journal of Magnetism and Magnetic Materials. - 2006. - Т. 300, № 1. - P. e476-e478, DOI 10.1016/j.jmmm.2005.10.198. - Библиогр.: 10. - Грант РФФИ 03-02-16701 . - ISSN 0304-8853

ГРНТИ

45.09

Аннотация: The single crystals Cu1 xNixB2O4 with x ¼ 0:002; 0.005; 0.009; 0.014 were grown by spontaneous crystallization and the magnetic properties of these crystals have been studied. The strong influence of substitution on the value of critical fields H?c at which the modulated states transform into a weak ferromagnetic one was observed in the temperature range 9.5–20 K. The essential change of temperature dependence of a paramagnetic susceptibility w for Ni-doped samples in comparison with pure CuB2O4 was revealed. The modulated state was not observed in the temperature range 9.5–20 K for Ni content more than x ¼ 0:009.

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Держатели документа:
Institute of Physics,Polish Academy of Sciences
L.V. Kirensky Institute of Physics,SB,RAS

Доп.точки доступа:
Petrakovskii, G. A.; Петраковский Герман Антонович; Sablina, K. A.; Саблина Клара Александровна; Udod, L. V.; Удод Любовь Викторовна; Pankrats, A. I.; Панкрац Анатолий Иванович; Velikanov, D. A.; Великанов Дмитрий Анатольевич; Bondarenko, G. V.; Бондаренко Геннадий Васильевич; Szymczak, R. ; Baran, M.
}
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11.

Effect of substitution on magnetic properties of CuB2O4 / Sablina K.A., Udod L.V., Pankrats A.I., Velikanov D.A., Vasilev A.D., A.F. Bovina, Bondarenko G.V. // Moscow International Symposium on Magnetism, Moscow, 2008, p.687

Доп.точки доступа:
Sablina, K. A.; Саблина, Клара Александровна; Udod, L. V.; Удод, Любовь Викторовна; Pankrats, A. I.; Панкрац, Анатолий Иванович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Bovina, A. F.; Бовина, Ася Федоровна; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич
}
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12.

Elastic and inelastic neutron study of CuGeO3 / B. Roessli [et al.] // J. Phys.: Condens. Matter. - 1994. - Vol. 6, Is. 41. - P. 8469-8477, DOI 10.1088/0953-8984/6/41/009. - Cited References: 18 . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
SPIN-PEIERLS TRANSITION
CHAINS
Аннотация: Elastic and inelastic neutron scattering was used to probe the structural and magnetic properties of polycrystalline CuGeO3. The diffraction data show that the chemical lattice remains stable in the measured temperature range 1.5 K less-than-or-equal-to T less-than-or-equal-to 296 K. At low temperature the inelastic experiments revealed a well defined magnetic excitation at 15 meV, which persists up to T = 50 K. The analysis of the spin-wave spectrum is based on a one-dimensional Heisenberg model within the spin-wave theory. On the other hand, no evidence of energy-gap opening, which would result from a dimerization of the Cu chains, could be found at low temperature.

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Держатели документа:
PAUL SCHERRER INST,CH-5232 VILLIGEN,SWITZERLAND
ACAD SCI,KRASNOYARSK 660036,RUSSIA
BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973
ETH ZURICH,NEUTRON SCATTERING LAB,CH-5232 VILLIGEN,SWITZERLAND
КНЦ СО РАН

Доп.точки доступа:
Roessli, B.; Fischer, P.; Schefer, J.; Buhrer, W.; Furrer, A.; Vogt, T.; Petrakovskii, G. A.; Петраковский, Герман Антонович; Sablina, K. A.; Саблина, Клара Александровна
}
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13.

EPR study of the Jahn-Teller effect of Cu2+ ions in ZnGa2O4 / A. M. Vorotynov [et al.] // Phys. Solid State. - 2010. - Vol. 52, Is. 11. - P. 2415-2418, DOI 10.1134/S1063783410110314. - Cited References: 12 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
MAGNETIC-PROPERTIES
PARTICLES
CUFE2O4
Аннотация: The Jahn-Teller effect in the ZnGa2O4 spinel single crystal has been investigated using electron paramagnetic resonance of Cu2+ ions in the temperature range 110-560 K. It has been shown that copper ions occupy octahedral sites 16d in the ZnGa2O4 crystal with cubic symmetry O (h) (7) (Fd-3m). At T 560 K, the octahedra undergo tetragonal distortions (predominantly tension) and rotation around the fourfold axes by the angle theta a parts per thousand 2.6A degrees. The parameters of the spin Hamiltonian, which characterize the prolate (g (aEuro-)

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Держатели документа:
[Vorotynov, A. M.
Petrakovskii, G. A.
Sablina, K. A.
Bovina, A. F.
Vasil'ev, A. D.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Vorotynov, A. M.; Воротынов, Александр Михайлович; Petrakovskii, G. A.; Петраковский, Герман Антонович; Sablina, K. A.; Саблина, Клара Александровна; Bovina, A. F.; Бовина, Ася Федоровна; Vasil'ev, A. D.; Васильев, Александр Дмитриевич
}
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14.

SABLINA, K. A.
ESR INVESTIGATION OF AN AMORPHOUS COMPOUNDS FEGEO3, MNGEO3, CUGEO3 / K. A. SABLINA, A. M. VOROTINOV // Solid State Commun. - 1990. - Vol. 76, Is. 4. - P. 453-455, DOI 10.1016/0038-1098(90)90648-U. - Cited References: 7 . - ISSN 0038-1098

РУБ Physics, Condensed Matter

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Доп.точки доступа:
VOROTINOV, A. M.; Саблина, Клара Александровна
}
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15.

Ferromagnetism and strong magnetic anisotropy of the orthoborate PbMnBO4 single crystals / A. I. Pankrats [et al.] // VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016) : abstracts / ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk : KIP RAS SB, 2016. - Ст. P1.25. - P. 85. - References: 3. - This work is supported by the RFBR grant No. 16-02-00563 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
ferromagnet -- resonance -- single crystal

Доп.точки доступа:
Pankrats, A. I.; Панкрац, Анатолий Иванович; Sablina, K. A.; Саблина, Клара Александровна; Balaev, A. D.; Балаев, Александр Дмитриевич; Eremin, M.; Kolkov, M. I.; Колков, Максим Игоревич; Tugarinov, V. I.; Тугаринов, Василий Иванович; Bovina, A. F.; Бовина, Ася Федоровна; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН

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16.

Ferromagnetism and strong magnetic anisotropy of the PbMnBO4 orthoborate single crystals / A. Pankrats [et al.] // J. Magn. Magn. Mater. - 2016. - Vol. 414. - P. 82-89, DOI 10.1016/j.jmmm.2016.04.042. - Cited References: 20. - We acknowledge the assistance of A. Dubrovsky in magnetic measurements. - This work was supported by the Russian Foundation for Basic Research, Projects nos. 13-02-00897 and 16-02-00563. MVE thanks for support the Russian Government Program of Competitive Growth of the Kazan Federal University, decision no. 930_p, May 22, 2015. . - ISSN 0304-8853

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
PbMBO4 M
   Resonance
   Symmetry
   Mn
   Fe
   Cr
Кл.слова (ненормированные):
Strong ferromagnetic anisotropy -- Ferromagnetic resonance -- Exchange interactions
Аннотация: The PbMnBO4 orthoborate single crystals were first grown and their magnetic properties and ferromagnetic resonance were studied. It was found that the ferromagnetic state below the Curie temperature TC=31 K is characterized by the strong magnetic anisotropy. The significant effective anisotropy fields of PbMnBO4 determine the energy gap in the FMR spectrum, which is extraordinary large for ferromagnets (112 GHz at T=4.2 K). It was shown that the static Jahn-Teller effect characteristic of the Mn3+ ion leads to both the ferromagnetic ordering and the strong magnetic anisotropy in the crystal. In the strong external magnetic field the induced ferromagnetic ordering is retained in the crystal above the Curie temperature up to the temperatures multiply higher than TC. A weak anomaly of the dielectric permittivity was observed in PbMnBO4 at the Curie temperature at which the long-range ferromagnetic order is established. © 2016 Elsevier B.V. All rights reserved.

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Держатели документа:
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Physics, Kazan Federal University, Kazan, Russian Federation

Доп.точки доступа:
Pankrats, A. I.; Панкрац, Анатолий Иванович; Sablina, K. A.; Саблина, Клара Александровна; Eremin, M.; Balaev, A. D.; Балаев, Александр Дмитриевич; Kolkov, M.; Колков, Максим Игоревич; Tugarinov, V. I.; Тугаринов, Василий Иванович; Bovina, A. F.; Бовина, Ася Федоровна
}
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17.

    Giant magnetostriction of CuGeO3 / L. . Gladczuk [et al.] // Czech. J. Phys. - 1996. - Vol. 46. - P. 1969-1970, DOI 10.1007/BF02570976. - Cited References: 10 . - ISSN 0011-4626
Рубрики:
SPIN-PEIERLS TRANSITION
   COMPOUND CUGEO3
   SYSTEM CUGEO3
   STATE
Аннотация: The magnetostriction of CuGcO(3) single crystals has been measured in the temperature range from 5 to 16 K in magnetic fields up to 12 T. Giant values of the magnetostrictive strains along the b-axis is observed near the phase transition from the dimerized phase to the high field magnetic phase. The field induced magnetostriction in the antiferromagnetic phase is considerably smaller than in the dimerized phase.

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Доп.точки доступа:
Gladczuk, L.; Szymczak, R.; Nabialck, A.; Krynetskii, I.; Petrakovskii, G. A.; Петраковский, Герман Антонович; Sablina, K. A.; Саблина, Клара Александровна; Vorotynov, A. M.; Воротынов, Александр Михайлович; Szymczak, H.; International Conference on Low Temperature Physics(21 ; 1996 ; Aug. 8-14 ; Prague)
}
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18.

Heat capacity and magnetocaloric effect in manganites (La1-yEuy)(0.7)Pb0.3MnO3 (y:0.2; 0.6) / A. V. Kartashev [et al.] // J. Magn. Magn. Mater. - 2010. - Vol. 322, Is. 6. - P. 622-627, DOI 10.1016/j.jmmm.2009.10.026. - Cited Reference Count: 17. - Гранты: This work was supported by the Krasnoyarsk's regional sciences foundation and RFBR in the framework of project "Siberia''(Grant no. 09-02-98001), by Integrational project of Siberian and Far Eastern Departments of RAS(no. 101) and by Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools(Projectno. NSh-1011.2008.2). Dr Maxim S. Molokeev is acknowledged for the X-raycharacterization of the samples. - Финансирующая организация: Krasnoyarsk's regional sciences foundation [09-02-98001]; Siberian and Far Eastern Departments [101]; Russian Federation [NSh-1011.2008.2] . - MAR. - ISSN 0304-8853
Рубрики:

Кл.слова (ненормированные):
Manganites -- Magnetic phase transition -- Heat capacity -- Magnetocaloric effect -- Heat capacity -- Magnetic phase transition -- Magnetocaloric effect -- Manganites -- Adiabatic calorimeters -- Heat capacities -- Magnetic phase transitions -- Magneto-caloric effects -- Magnetocaloric effect -- Multi-element -- Nonmagnetics -- Relative cooling power -- Temperature range -- Europium -- Lead -- Manganese compounds -- Oxide minerals -- Specific heat -- Phase transitions
Аннотация: Heat capacity and intensive magnetocaloric effect (MCE) in manganites (La1-yEuy)(0.7)Pb0.3MnO3[y=0.2; 0.6] (LEPM) were investigated by means of adiabatic calorimeter. The heat capacity anomaly as well as the values of both the intensive (Delta T-AD) and the extensive (Delta S-MCE) MCE were found to decrease upon increased replacement of La with nonmagnetic Eu. However, because of widening of the MCE peaks, the LEPM compounds show the relative cooling power, RCP/Delta H, comparable to other solid solutions of manganites. Owing to strong effect of Eu -> La substitution on the Curie temperature, LEPM might have potential as the solid state refrigerants in multi-element cooling apparatus operating in a wide temperature range. (C) 2009 Elsevier B.V. All rights reserved.

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Держатели документа:
SB RAS, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660079, Russia

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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19.

Heat capacity and magnetocaloric effect in manganites (La1-yEuy)0.7Pb0.3MnO3 (y = 0.2; 0.6) / Kartasev A.V. [и др.] // Moscow Int. Symp. on Magnet. (MISM-2008) : June 20-25, 2008, Moscow : book of abstract. - 2008. - Ст. 24PO-7-25. - p. 639-640. - Библиогр.: 1. - Support by the Council of Grants from the President of the Russian Federation for Support of Leading Scientific Schools (project no. NSh -1011.2008.2) is acknowledged

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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; Moscow International Symposium on Magnetism(4 ; 2008 ; Jun. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
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20.

Heat capacity of a mixed-valence manganese oxide Pb(3)Mn(7)O(15) / N. V. Volkov [et al.] // J. Phys.: Condens. Matter. - 2008. - Vol. 20, Is. 44. - Ст. 445214, DOI 10.1088/0953-8984/20/44/445214. - Cited References: 11. - This study was supported by the INTAS (project No 061000013-9002), the Division of Physical Sciences of RAS, program `Spin-dependent Effects in Solids and Spintronics' (project No. 2.4.2 of SB RAS), the President of the Russian Federation, grant for Support of Leading Scientific Schools (project No. NSh-1011.2008.2), KRSF-RFBR `Enisey2007', project No. 07-02-96801-a, and the Siberian Branch of RAS, Integration project No. 3.7. . - ISSN 0953-8984

РУБ Physics, Condensed Matter

Кл.слова (ненормированные):
Antiferromagnetism -- Crystallography -- Entropy -- Lead alloys -- Magnetic materials -- Magnetism -- Manganese -- Manganese compounds -- Powders -- Single crystals -- Specific heat -- Spin dynamics -- Antiferromagnetic orders -- Charge localizations -- Entropy losses -- Excess heat capacities -- Experimental datums -- Heat capacities -- Magnetic contributions -- Magnetic orders -- Magnetic states -- Magnetic subsystems -- Magnetic transitions -- Manganese oxides -- Nonmagnetic -- Spin systems -- Temperature curves -- Temperature dependences -- Temperature intervals -- Temperature ranges -- Manganese alloys
Аннотация: We present the results of a heat capacity study of Pb(3)Mn(7)O(15) single crystals with approximately equal concentrations of Mn(3+) and Mn(4+) ions. In the temperature interval between 210 and 260 K, an excess heat capacity of nonmagnetic origin, most likely associated with the process of charge localization, has been observed. Also, three pronounced anomalies corresponding to the changes in a magnetic subsystem of the crystal have been observed in the temperature dependence of the heat capacity. A broad hump near 150 K is related to the formation of a short-range magnetic order. This process of short-range ordering is rather prominent, considering the appreciable value of the entropy loss accompanying the change in the magnetic state. A clear lambda-shaped peak at 70 K marks the onset of a long-range antiferromagnetic order. Another anomalous contribution to the heat capacity of magnetic origin has been revealed at temperatures below 20 K. This contribution is associated with a magnetic transition of an unknown nature, which is also clearly evident in magnetization versus temperature curves. The total magnetic contribution to the entropy deduced from the actual experimental data over the entire temperature range is much smaller than is expected for a completely ordered Mn spin system in the crystal. We suggest several possible reasons that may account for this `missing' entropy.

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Держатели документа:
[Volkov, N. V.
Sablina, K. A.
Eremin, E. V.
Flerov, I. N.
Kartashev, A.] RAS, SB, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Volkov, N. V.
Flerov, I. N.] Siberian Fed Univ, Dept Phys, Krasnoyarsk 660041, Russia
[Boeni, P.] Tech Univ Munich, Dept Phys E21, D-85747 Garching, Germany
[Shah, V. R.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA
[Rasch, J. C. E.
Boehm, M.] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France
[Rasch, J. C. E.
Schefer, J.] Swiss Fed Inst Technol, Neutron Scattering Lab, CH-5232 Villigen, Switzerland
[Rasch, J. C. E.
Schefer, J.] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
ИФ СО РАН
Kirensky Institute of Physics, SB, RAS, 660036 Krasnoyarsk, Russian Federation
Department of Physics, Siberian Federal University, 660041 Krasnoyarsk, Russian Federation
Physics Department E21, Technical University of Munich, D-85747 Garching, Germany
Physics Department, Indiana University, Bloomington, IN 47405, United States
Institut Laue-Langevin, 6 rue Jules Horowitz, 38042 Grenoble, Cedex 9, France
Laboratory for Neutron Scattering, ETH Zurich, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland

Доп.точки доступа:
Volkov, N. V.; Волков, Никита Валентинович; Sablina, K. A.; Саблина, Клара Александровна; Eremin, E. V.; Еремин, Евгений Владимирович; Boni, P.; Shah, V. R.; Flerov, I. N.; Флёров, Игорь Николаевич; Kartashev, A.; Rasch, JCE; Boehm, M.; Schefer, J.
}
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