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1.


   
    Magnetic properties of Pb2Fe2Ge2O9 single crystals / G. A. Petrakovskii [et al.] // Phys. Solid State. - 2009. - Vol. 51, Is. 9. - P. 1853-1858, DOI 10.1134/S1063783409090145. - Cited References: 10 . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
MULTIFERROICS
Аннотация: Single crystals of Pb2Fe2Ge2O9 have been grown. They were subjected to X-ray diffraction, magnetic, neutron diffraction, Mossbauer and spin resonance studies. It has been established that Pb2Fe2Ge2O9 is a weak ferromagnet with a N,el temperature T (N) = 46 K, and the exchange and spin-flop transition fields have been estimated. It has been demonstrated that the weak ferromagnetic moment is actually the result of the single-ion anisotropy axes for the magnetic moments of different magnetic sublattices being not collinear.

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Держатели документа:
[Petrakovskii, G. A.
Popov, M. A.
Balaev, A. D.
Sablina, K. A.
Bayukov, O. A.
Velikanov, D. A.
Vorotynov, A. M.
Bovina, A. F.
Vasil'ev, A. D.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Petrakovskii, G. A.
Popov, M. A.
Bayukov, O. A.
Vasil'ev, A. D.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Boehm, M.] Inst Laue Langevin, F-38042 Grenoble 9, France
ИФ СО РАН

Доп.точки доступа:
Petrakovskii, G. A.; Петраковский, Герман Антонович; Popov, M. A.; Balaev, A. D.; Балаев, Александр Дмитриевич; Sablina, K. A.; Саблина, Клара Александровна; Bayukov, O. A.; Баюков, Олег Артемьевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Vorotynov, A. M.; Воротынов, Александр Михайлович; Bovina, A. F.; Бовина, Ася Федоровна; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Boehm, M.
}
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2.


   
    Heat capacity, structural disorder, and the phase transition in cryolite (NH4)(3)Ti(O-2)F-5 / I. N. Flerov [et al.] // Phys. Solid State. - 2006. - Vol. 48, Is. 8. - P. 1559-1567, DOI 10.1134/S1063783406080221. - Cited References: 18 . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
PEROVSKITE-LIKE OXYFLUORIDES
   CRYSTAL-STRUCTURES

   (NH4)(3)TIOF5

   (NH4)(3)WO3F3

   DIFFRACTION

Аннотация: The heat capacity, T-p phase diagrams, and unit cell parameters of cryolite (NH4)(3)Ti(O-2)F-5 were studied over a wide temperature range. A phase transition was found near 226 K, and its thermodynamic characteristics and their dependence on the crystallization conditions were determined. The coordinates and thermal parameters of atoms in the Fm3m phase were refined. An analysis of the electron density distribution and the transition entropy showed that the mechanism of the structural transition involves, above all, rotation of the Ti(O-2)F-5 octahedra. Possible models of disordering of tetrahedral ammonium groups are considered.

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Chem, Far E Div, Vladivostok 690022, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Institute of Chemistry, Far East Division, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022, Russian Federation

Доп.точки доступа:
Flerov, I. N.; Флёров, Игорь Николаевич; Gorev, M. V.; Горев, Михаил Васильевич; Fokina, V. D.; Фокина, Валентина Дмитриевна; Molokeev, M. S.; Молокеев, Максим Сергеевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Bovina, A. F.; Бовина, Ася Федоровна; Laptash, N. M.
}
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3.


   
    New magnetically ordered CoBO3 crystal / M. L. Afanas'ev [et al.] // JETP Letters. - 2001. - Vol. 74, Is. 2. - P. 82-83, DOI 10.1134/1.1405889. - Cited References: 5 . - ISSN 0021-3640
РУБ Physics, Multidisciplinary

Аннотация: Crystals of a new CoBO3 compound were synthesized from a solution in melt. According to the X-ray diffraction data, CoBO3 crystallizes in the calcite structure with lattice parameters a(H) = 4.631 +/- 0.005, c(H) = 14.51 +/- 0.01 Angstrom. Measurements on SQUID and vibrating-coil magnetometers suggested that CoBO3 is a magnetically ordered crystal with a saturation magnetization of 50 emu/g in the basal plane at 4.2 K and a Neel temperature of 53 K. (C) 2001 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Kirenskii Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirenskii Inst. of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Afanas'ev, M. L.; Balaev, A. D.; Балаев, Александр Дмитриевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Petrakovskii, G. A.; Петраковский, Герман Антонович; Rudenko, V. V.; Руденко, Валерий Васильевич
}
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4.


   
    Violation of axial symmetry of optical properties in the trigonal crystal Nd:GdFe2.1Ga0.9(BO3)(4) / A. V. Malakhovskii [et al.] // Phys. Lett. A. - 2009. - Vol. 373, Is. 18-19. - P. 1683-1686, DOI 10.1016/j.physleta.2009.03.019. - Cited References: 16. - The work was supported by the Russian Foundation for Basic Researches, grant No 07-02-00704. . - ISSN 0375-9601
РУБ Physics, Multidisciplinary
Рубрики:
IRON BORATE GDFE3(BO3)(4)
Кл.слова (ненормированные):
Optical anisotropy -- Spectroscopy -- Rare earth compounds -- Transition metal compounds -- Optical anisotropy -- Rare earth compounds -- Spectroscopy -- Transition metal compounds
Аннотация: Strong dependence of birefringence and absorption spectra of d-d, f-f and charge transfer transitions on the direction of light beam in the plane perpendicular to the threefold crystallographic axis has been found out in trigonal crystal Nd:GdFe2.1Ga0.9(BO3)(4). X-ray measurements have shown that the crystal consists of inversion twins, whose formation is stimulated by the partial substitution of Fe by Ga. Observed violation of axial symmetry of the trigonal crystal optical properties is accounted for on the basis of assumption about stripe domain structure of the inversion twins. (c) 2009 Elsevier B.V. All rights reserved.

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Держатели документа:
L.V. Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 660036 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Malakhovskii, A. V.; Малаховский, Александр Валентинович; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Zabluda, V. N.; Заблуда, Владимир Николаевич; Leont'ev, A. A.; Temerov, V. L.; Темеров, Владислав Леонидович; Gudim, I. A.; Гудим, Ирина Анатольевна; Russian Foundation for Basic Researches [07-02-00704]
}
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5.


    Головнев, Николай Николаевич.
    Структура двух новых соединений фторхинолоновых антибиотиков с минеральными кислотами / Н. Н. Головнев, А. Д. Васильев // Журн. неорг. химии. - 2016. - Т. 61, № 11. - С. 1472-1475, DOI 10.7868/S0044457X16110076. - Библиогр.: 19 . - ISSN 0044-457X

РИНЦ,
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Переводная версия Golovnev N. N. Structure of two new compounds of fluoroquinolone antibiotics with mineral acids [Текст] / N. N. Golovnev, A. D. Vasil’ev // Russ. J. Inorg. Chem. : Maik Nauka-Interperiodica Publishing, 2016. - Vol. 61 Is. 11.- P.1419-1422

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Васильев, Александр Дмитриевич; Vasil'ev, A. D.
}
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6.


    Golovnev, N. N.
    Structure of two new compounds of fluoroquinolone antibiotics with mineral acids / N. N. Golovnev, A. D. Vasil’ev // Russ. J. Inorg. Chem. - 2016. - Vol. 61, Is. 11. - P. 1419-1422, DOI 10.1134/S0036023616110073. - Cited References: 19 . - ISSN 0036-0236
Кл.слова (ненормированные):
Single crystals -- X ray diffraction -- Crystallographic data -- Fluoroquinolone antibiotics -- Intra- and intermolecular hydrogen bonds -- Levofloxacin -- Mineral acid -- Pi interactions -- Space Groups -- Sparfloxacin -- Hydrogen bonds
Аннотация: New compounds of sparfloxacin (C19H22F2N4O3, SfH) and levofloxacin (C18H20FN3O4, LevoH) with mineral acids, namely, sparfloxacinium bromide (SfH · HBr, I) and levofloxacindium diperchlorate (LevoH · 2HClO4, II), have been synthesized and characterized by X-ray diffraction. Crystallographic data are a = 7.7151(7) Å, , b = 26.109(3) Å,с = 10.008(1) Å, β = 103.556(1)°, V = 1959.7(3) Å3, space group P21/n, Z = 4 for I and a = 9.727(6) Å, b = 20.440(12) Å, с = 12.286(7) Å, β = 104.327(8)°, V = 2367(2)Å3, space group P21, Z = 4 for II. The structures of these compounds are stabilized by intra- and intermolecular hydrogen bonds and π–π interaction between SfH2 + or LevoH3 2+ ions. © 2016, Pleiades Publishing, Ltd.

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Публикация на русском языке Головнев, Николай Николаевич. Структура двух новых соединений фторхинолоновых антибиотиков с минеральными кислотами [Текст] / Н. Н. Головнев, А. Д. Васильев // Журн. неорг. химии : Наука, 2016. - Т. 61 № 11. - С. 1472-1475

Держатели документа:
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/38, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Головнев, Николай Николаевич
}
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7.


    Васильев, Александр Дмитриевич.
    Кристаллическая структура [Bi(N-этилтиомочевина)4(ClO4)2]ClO4 / А. Д. Васильев, Н. Н. Головнев, М. К. Лесников // Журн. неорг. химии. - 2016. - Т. 61, № 6. - С. 740-743, DOI 10.7868/S0044457X16060222. - Библиогр.: 21 . - ISSN 0044-457X

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Переводная версия Vasil'ev A. D. Crystal structure of [Bi(N-ethylthiourea)4(ClO4)2]ClO4 [Текст] / A. D. Vasil’ev, N. N. Golovnev, M. K. Lesnikov // Russ. J. Inorg. Chem. : MAIK Nauka-Interperiodica / Springer, 2016. - Vol. 61 Is. 6.- P.704-707

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Головнев, Николай Николаевич; Лесников, М. К.; Vasil'ev, A. D.
}
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8.


   
    Highly textured bismuth-containing high-temperature superconductor ceramics obtained by uniaxial pressing in liquid medium: Fabrication and properties / M. I. Petrov [et al.] // Tech. Phys. Lett. - 2007. - Vol. 33, Is. 9. - P. 740-743, DOI 10.1134/S1063785007090088. - Cited References: 12 . - ISSN 1063-7850
РУБ Physics, Applied
Рубрики:
MICROSTRUCTURE
   MAGNETIZATION

Аннотация: A new method of fabricating textured ceramics with a composition of Bi1.8Pb0.3Sr1.9Ca2Cu3Ox is described, according to which the initial low-density ceramics is subjected to uniaxial pressing in a liquid medium followed by drying and annealing. Analysis of the X-ray diffraction and scanning electron microscopy data show evidence for a high degree of texture in high-temperature superconductor ceramics fabricated using the proposed method. The results of magnetic measurements indicate that the obtained material possesses anisotropy of the magnetic moment for the magnetic field H oriented parallel and perpendicular to the direction of uniaxial pressing. The textured ceramics also show high diamagnetic response for H parallel to the c axis of grains, which makes these ceramics promising materials for practical applications.

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk, Russia
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk, Russia
Russian Acad Sci, Siberian Div, Boreskov Inst Catalysis, Novosibirsk, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Petrov, M. I.; Петров, Михаил Иванович; Balaev, D. A.; Балаев, Дмитрий Александрович; Belozerova, I. L.; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Gokhfel'd, D. M.; Гохфельд, Денис Михайлович; Mart'yanov, O. N.; Popkov, S. I.; Попков, Сергей Иванович; Shaihutdinov, K. A.
}
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9.


   
    Preparation, microstructure, magnetic and transport properties of bulk textured Bi(1.8)Pb(0.3)Sr(1.9)Ca(2)Cu(3)O(x) and Bi(1.8)Pb(0.3)Sr(1.9)Ca(2)Cu(3)O(x)+Agceramics / M. I. Petrov [et al.] // Supercond. Sci. Technol. - 2008. - Vol. 21, Is. 10. - Ст. 105019, DOI 10.1088/0953-2048/21/10/105019. - Cited References: 22. - This work is supported by program of RAS 'Quantum macrophysics' No. 3.4 and integration project of SB RAS No. 3.4 and in part by Krasnoyarsk Regional Scientific Foundation (KRSF), Grants 17G057, 18G148 and 18G011. DAB and AAD acknowledge the Russian Science Support Foundation. . - ISSN 0953-2048
РУБ Physics, Applied + Physics, Condensed Matter
Рубрики:
HIGH-TEMPERATURE SUPERCONDUCTORS
   CRITICAL-CURRENT DENSITY

   BI-2223 TAPES

   BI2223

   SILVER

   DISCS

   (BI

Кл.слова (ненормированные):
Building materials -- Calcium -- Copper -- Crystallites -- Diamagnetic materials -- Lead -- Lead alloys -- Magnetic anisotropy -- Magnetic properties -- Nanocrystalline alloys -- Silver -- Textures -- Transport properties -- Bi-2223 -- Bulk samples -- Degree of textures -- Diamagnetic responses -- Liquid mediums -- Magnetic and transport properties -- Magnetic measurements -- Room temperatures -- Ceramic materials
Аннотация: A new method of preparation of bulk textured Bi2223 ceramics and Bi2223 + Ag composites, based on room temperature pressing of foamed precursor (Bi2223, Bi2223 + Ag) in a liquid medium, is proposed. SEM and XRD data prove a high degree of texture of the bulk samples obtained. Magnetic measurements performed in directions H parallel to c-axis and H parallel to a-b-planes of Bi2223 crystallites demonstrates anisotropy of magnetization confirming the texture of the ceramics. The materials obtained possess large diamagnetic response in the direction H parallel to a-b-planes of Bi2223 crystallites at both 77.4 and 4.2 K.

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Держатели документа:
[Petrov, M. I.
Shaikhutdinov, K. A.
Balaev, D. A.
Dubrovskii, A. A.
Popkov, S. I.
Vasil'ev, A. D.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Belozerova, I. L.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk, Russia
[Mart'yanov, O. N.] Boreskov Inst Catalysis, Novosibirsk 630090, Russia
ИФ СО РАН
Kirensky Institute of Physics, 660036, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Boreskov Institute of Catalysis, 630090, Novosibirsk, Russian Federation

Доп.точки доступа:
Petrov, M. I.; Петров, Михаил Иванович; Belozerova, I. L.; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Balaev, D. A.; Балаев, Дмитрий Александрович; Dubrovskii, A. A.; Дубровский, Андрей Александрович; Popkov, S. I.; Попков, Сергей Иванович; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Mart'yanov, O. N.
}
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10.


   
    Investigation of the structure, physical properties, and phase transition in SrAlF5 / S. V. Mel'nikova [et al.] // Phys. Solid State. - 2010. - Vol. 52, Is. 3. - P. 509-514, DOI 10.1134/S1063783410030108. - Cited References: 16. - This study was supported by the Russian Foundation for Basic Research (project no. 07-02-00442) and the Siberian Branch of the Russian Academy of Sciences within the framework of the Interdisciplinary Integration Project No. 34. . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
CRYSTAL-STRUCTURE
   BEHAVIOR

   GROWTH

   SRAIF5

Аннотация: Crystals of SrAlF5 have been grown by the Bridgman method from the melt and by sintering of the components. Optical polarization studies and measurements of the thermal expansion and birefringence coefficients have been carried out over a wide temperature range. The electromechanical coefficient d (33) has been measured, and the optical second harmonic, dielectric hysteresis loop, and optical quality of the crystal have been assessed. X-ray diffraction investigations have been performed to identify the revealed compounds. It has been demonstrated that the SrAlF5 crystals obtained under the growth conditions chosen have I4(1)/a symmetry and do not undergo structural phase transitions in the temperature range 100-800 K. Crystalline inclusions of the AlOF oxyfluoride have been revealed in crystals grown with an AlF3 excess. The birefringence of the AlOF crystal is an order of magnitude higher than that of SrAlF5, does not depend on temperature, and has no anomalies up to 800 K.

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Держатели документа:
[Mel'nikova, S. V.
Gorev, M. V.
Vasil'ev, A. D.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Isaenko, L. I.
Lobanov, S. I.] Russian Acad Sci, Trofimuk United Inst Geol Geophys & Mineral, Siberian Branch, Novosibirsk 630090, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Trofimuk United Institute of Geology, Geophysics, and Mineralogy, Siberian Branch, Russian Academy of Sciences, pr. Koptyuga 3, Novosibirsk 630090, Russian Federation

Доп.точки доступа:
Mel'nikova, S. V.; Мельникова, Светлана Владимировна; Isaenko, L. I.; Gorev, M. V.; Горев, Михаил Васильевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Lobanov, S. I.
}
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