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1.
Synthesis, crystal structure,
and magnetic properties of the YbFeTi2O7
compound
/ T. V. Drokina [et al.]> // Phys. Solid State. - 2018. -
Vol. 60
,
Is. 3
. - P. 532-536,
DOI
10.1134/S1063783418030095. - Cited References:13 . - ISSN 1063-7834. - ISSN 1090-6460
РУБ
Physics, Condensed Matter
Рубрики:
STATE
Аннотация:
We report on the synthesis conductions and results of experimental investigations of the crystal structure and magnetic properties of a new magnetic
compound
YbFeTi2O7. According to the X-ray diffractometry data, the crystal structure of the investigated
compound
is described by the rhombic space group Pcnb with unit cell parameters of a = 9.8115(1) Å, b = 13.5106(2) Å, and c = 7.31302(9) Å and atomic disordering in the distribution of iron ions Fe3+ over five structural sites. The magnetic measurements in the lowtemperature region revealed a kink in the temperature dependence of the magnetic moment and its dependence on the sample magnetic prehistory. The experimental results obtained suggest that with a decrease in temperature the sample passes from the paramagnetic state to the spin-glass-like magnetic state characterized by a freezing temperature of T f = 4.5 K at the preferred antiferromagnetic exchange coupling in the sample spin system. The chemical pressure variation upon replacement of rare-earth ion R by Yb in the RFeTi2O7 system does not change the crystal lattice symmetry and magnetic state.
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Публикация на русском языке
Синтез, кристаллическая структура и магнитные свойства соединения YbFeTi2O7 [Текст] / Т. В. Дрокина [и др.] // Физ. тверд. тела. - 2018. - Т. 60 Вып. 3. - С. 526–530
Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Khabarovsk 680000, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Доп.точки доступа:
Drokina, T. V.; Дрокина, Тамара Васильевна; Petrakovskii, G. A.; Петраковский, Герман Антонович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич
}
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2.
Kirenskii, L. V.
Domain structure of double layer single crystal films of iron / L. V. Kirensky, V. G. Pynko, L. M. Obrastsova> // Czech. J. Phys. - 1971. -
Vol. B21
,
no. 4-5
. - P. 513-515 . - ISSN 0011-4626
Перевод заглавия:
Доменная структура двухслойных монокристаллических пленок железа
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:
Pynko, V. G.; Пынько, Виталий Григорьевич; Obrastsova, L. M.; Киренский, Леонид Васильевич
}
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3.
Spin glass magnetic
behavior in GdFeTi2O7
compound
/ A. Arauzo [et al.]> //
Moscow International Symposium on Magnetism (MISM-2017) : 1-7 July 2017 : book of abstracts. - 2017. - Ст. 4PO-I1-34. - P. 889
РИНЦ
,
Материалы конференции
,
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Доп.точки доступа:
Arauzo, A.; Bartolomé, J.; Drokina, T. V.; Дрокина, Тамара Васильевна; Petrakovskii, G. A.; Петраковский, Герман Антонович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Moscow International Symposium on Magnetism(7 ; 2017 ; Jul. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
Нет сведений об экземплярах (Источник в БД не найден)
}
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4.
Vasiliev, A. D.
Structure of the oxonium
compound
of pefloxacinium hexachloridostannate(IV) / A. D. Vasiliev, N. N. Golovnev> // J. Struct. Chem. - 2018. -
Vol. 59
,
Is. 3
. - P. 641-645,
DOI
10.1134/S0022476618030198. - Cited References: 13. - The work was performed within the State Contact of the Ministry of Education of the Russian Federation and the Siberian Federal University in 2017-2019 (4.7666.2017/BCh) . - ISSN 0022-4766. - ISSN 1573-8779
РУБ
Chemistry, Inorganic & Nuclear + Chemistry, Physical
Рубрики:
ANTIBACTERIAL AGENTS
QUINOLONE
Кл.слова (ненормированные):
pefloxacinium cation
--
oxonium cation
--
chloride ion
--
hexachloridostannate(IV) anion
--
ionic
compound
--
crystal structure
Аннотация:
The structure of tris{hexachloridostannate(IV)}-hexachloride-tetrakis(pefloxacinium)-tetraoxonium undecahydrate (CCDC 1551760) 4PefH 3 2+ , 4H3O+, 3SnCl 6 2− , 6Cl−, 11H2O (I), (PefH is pefloxacin) is determined. The I crystals are triclinic: a = 13.5474(10) Å, b = 15.2859(11) Å, c = 15.6586(11) Å, α = 94.467(1)°, β = 105.477(1)°, γ = 111.560(1)°, V = 2849.9(4) Å3, space group Pī, Z = 1. The structure is stabilized by multiple intermolecular hydrogen bonds and π–π-interactions between the PefH32+ ions.
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Публикация на русском языке
Держатели документа:
Siberian Fed Univ, Krasnoyarsk, Russia.
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Res Ctr KSC, Krasnoyarsk, Russia.
Доп.точки доступа:
Golovnev, N. N.; Васильев, Александр Дмитриевич; Ministry of Education of the Russian Federation [4.7666.2017/BCh]; Siberian Federal University [4.7666.2017/BCh]
}
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5.
Electro-optical and dielectric
properties of polymer-stabilized blue phase liquid crystal impregnated with a fluorine-containing
compound
/ P. C. Wu [et al.]> // J. Mol. Liq. - 2018. -
Vol. 267
. - P. 138-143,
DOI
10.1016/j.molliq.2017.12.062. - Cited References: 47. - The authors are indebted to Prof. Mon-Juan Lee of Chang-Jung Christian University for valuable discussions on photopolymerization. This work was financially supported by the Ministry of Science and Technology, Taiwan, through Grant Nos. 104-2112-M-009-008-MY3 and 106-2923-M-009-002-MY3, and by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research projects 16-42-240704 and 17-42-240464. . - ISSN 0167-7322. - ISSN 1873-3166
РУБ
Chemistry, Physical + Physics, Atomic, Molecular & Chemical
Рубрики:
HYSTERESIS
TEMPERATURE
MONOMERS
Кл.слова (ненормированные):
Polymer-stabilized blue phase
--
Liquid crystal
--
Fluorine-containing
--
compound
--
Operating voltage
--
Ionic effect
Аннотация:
The effects of a fluorine-containing
compound
(4,4′-difluorobenzophenone; DF) on the electro-optical and dielectric properties of polymer-stabilized blue phase (PSBP) liquid crystals were investigated. When a PSBP cell was driven by an in-plane electric field, the addition of DF up to 2.7 wt% effectively reduced the operation voltage by ~ 30%. Further inspection by dielectric spectroscopy indicated that the ionic concentration in PSBP decreased with increasing loading of DF. This finding can be ascribed to the complexation of impurity ions near the ketone group and carbon–fluorine bonds of the DF
compound
that restrained the ion transport after photopolymerization. As a result, the DF
compound
can be regarded as a superior ion-suppressor, enabling the reduction in the ionic effect and, in turn, the promotion of the electro-optical response of a PSBP.
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Держатели документа:
Natl Chiao Tung Univ, Coll Photon, Inst Imaging & Biomed Photon, Tainan 71150, Taiwan.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660041, Russia.
Доп.точки доступа:
Wu, Po-Chang; Chen, Hsin-Li; Rudakova, Natalya V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Lee, Wei; Ministry of Science and Technology, Taiwan [104-2112-M-009-008-MY3, 106-2923-M-009-002-MY3]; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [16-42-240704, 17-42-240464]
}
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6.
Zharkov, S. M.
L10 ordered phase formation at solid state reactions in Cu/Au and Fe/Pd thin films / S. M. Zharkov, E. T. Moiseenko, R. R. Altunin> // J. Solid State Chem. - 2019. -
Vol. 269
. - P. 36-42,
DOI
10.1016/j.jssc.2018.09.009. - Cited References: 36. - The investigation of Cu/Au system was conducted under the financial support of the Russian Science Foundation (Grant #18-13-00080) and the investigation of Fe/Pd system was supported by the Russian Foundation for Basic Research (Grant #18-03-01173). . - ISSN 0022-4596
Перевод заглавия:
Формирование атомно-упорядоченной фазы L1_0 при твердофазной реакции в тонких пленках Cu/Au и Fe/Pd
Кл.слова (ненормированные):
Thin film solid state reaction
--
Intermetallic
compound
--
L10 type ordered structure
--
Order/disorder transformation
--
In situ ED
Аннотация:
To understand the mechanism of mass transfer during solid state reactions and order-disorder transitions the formation processes of CuAuI and L10-FePd ordered structures at solid state reactions in Cu/Au и Fe/Pd bilayer thin films have been carried out using the method of in situ electron diffraction (ED). The value of the long-range order (LRO) parameter has been estimated for the L10 type ordered structures being formed; the order-disorder transition temperatures have been determined. The formation mechanism of the L10 type ordered structures formed at the initial stages of the solid state reaction in the Cu/Au and Fe/Pd thin films has been suggested. In the case of Cu/Au it has been shown that the interdiffusion of copper and gold at the initial stage of the solid state reaction results in the reduced size of the grains of the initial materials, as a result, nanocrystalites of the Cu-Au solid solution are formed, and further, grains of the CuAuI ordered solid solution appear and their growth begins.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50/38, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, 660041, Russian Federation
Доп.точки доступа:
Moiseenko, E. T.; Altunin, R. R.; Жарков, Сергей Михайлович
}
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7.
Study of the
new two-dimensional
compound
CoC / K. V. Larionov [et al.]> // JETP Letters. - 2018. -
Vol. 108
,
Is. 1
. - P. 13-17,
DOI
10.1134/S0021364018130106. - Cited References: 24. - We are grateful to Prof. Gotthard Seifert, Prof. B.P. Sorokin, and Prof. L.A. Chernozatonskii for the discussion of the results. This work was supported by the Russian Science Foundation (project no. 17-72-20223). The calculations were performed with the use of resources of the Computer Cluster, Materials Modeling and Development Laboratory, National University of Science and Technology MISiS (supported by the Ministry of Education and Science of the Russian Federation, project no. 14.Y26.31.0005), and the Joint Supercomputer Center, Russian Academy of Sciences. . - ISSN 0021-3640. - ISSN 1090-6487
Рубрики:
TOTAL-ENERGY CALCULATIONS
WAVE BASIS-SET
AB-INITIO
DYNAMICS
Аннотация:
A novel quasi-two-dimensional monolayer structure with orthorhombic symmetry based on cobalt carbide, o-CoC, has been considered. This structure supplements a recently discovered family of quasi-two-dimensional compounds based on transition metals. The dynamic stability of a monolayer has been demonstrated. Its mechanical and electronic characteristics have been studied.
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Публикация на русском языке
Исследование нового двумерного соединения CoC [Текст] / К. В. Ларионов [и др.] // Письма в Журн. эксперим. и теор. физ. - 2018. - Т. 108 Вып. 1. - С. 14-18
Держатели документа:
Natl Univ Sci & Technol MISiS, Moscow 119049, Russia.
Technol Inst Superhard & Novel Carbon Mat, Troitsk 108840, Russia.
Russian Acad Sci, Kirensky Inst Phys, Fed Res Ctr KSC, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Emanuel Inst Biochem Phys, Moscow 119334, Russia.
Доп.точки доступа:
Larionov, K. V.; Ларионов, Константин В.; Popov, Z. I.; Vysotin, M. A.; Высотин, Максим Александрович; Kvashnin, D. G.; Sorokin, P. B.; Russian Science Foundation [17-72-20223]; Ministry of Education and Science of the Russian Federation [14.Y26.31.0005]; Joint Supercomputer Center, Russian Academy of Sciences
}
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8.
Tuning the peak
effect by in Y1-xNdxBa2Cu3O7-δ
compound
by Nd doping / S. V. Semenov [et al.]> //
Moscow International Symposium on Magnetism (MISM-2017) : 1-7 July 2017 : book of abstracts. - 2017. - Ст. 3PO-I-19. - P. 576. - Библиогр.: 4
РИНЦ
,
Материалы симпозиума
,
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Доп.точки доступа:
Semenov, S. V.; Семёнов, Сергей Васильевич; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Balaev, D. A.; Балаев, Дмитрий Александрович; Yakimov, I. S.; Petrov, M. I.; Петров, Михаил Иванович; Moscow International Symposium on Magnetism(7 ; 2017 ; Jul. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
}
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9.
Hydrates [Na2(H2O)x](2-thiobarbiturate)2 (x
= 3, 4, 5): crystal structure, spectroscopic and thermal properties / N. N. Golovnev [et al.]> // J. Coord. Chem. - 2016. -
Vol. 69
,
Is. 21
. - P. 3219-3230,
DOI
10.1080/00958972.2016.1228914. - Cited References:33. - This work was supported by the the Ministry of Education and Science of the Russian Federation for research engineering of the Siberian Federal University [grant number 3049]. . - ISSN 0095-8972. - ISSN 1029-0389
Перевод заглавия:
Гидраты [Na2(H2O)x](2-thiobarbiturate)2 (x = 3, 4, 5): кристаллическая структура, спектроскопические и термические свойства
РУБ
Chemistry, Inorganic & Nuclear
Рубрики:
2-THIOBARBITURIC ACID
COMPLEXES
1,3-DIETHYL-2-THIOBARBITURATE
TRANSFORMATION
CESIUM
Na
Li
Кл.слова (ненормированные):
2-Thiobarbituric acid
--
Sodium
--
coordination
compound
--
X-ray diffraction
--
infrared spectroscopy
--
thermal analysis
Аннотация:
The hydrates [Na2(H2O)3(Htba)2] (1) and [Na2(H2O)4(Htba)2] (2), where H2tba is 2-thiobarbituric acid, were obtained under different thermal conditions from aqueous solutions and were structurally characterized. The molecular and supramolecular structures were compared to the known structure of [Na2(H2O)5(Htba)2] (3). In polymeric 1–3, the Htba− ions are linked to Na+ through O and S forming octahedra. The decrease of the number of coordination water molecules led to an increase of the total number of bridge ligands (μ2-H2O, Htba−) and a change of the Htba− coordination. These factors induced higher distortion of the octahedra. It was assumed that hydrates, with a different number of coordinated water molecules, are more probable when the central metal has weaker bonds with O water molecules and with other ligands. The net topologies of 1–3 were compared. Thermal decomposition and IR spectra were analyzed for 1 and 2.
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Держатели документа:
Siberian Fed Univ, Dept Chem, Krasnoyarsk, Russia.
Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk, Russia.
Irkutsk Favorsky Inst Chem, Lab Phys Chem, Irkutsk, Russia.
Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk, Russia.
Tomsk State Univ, Funct Elect Lab, Tomsk, Russia.
Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk, Russia.
Доп.точки доступа:
Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Sterkhova, Irina V.; Atuchin, V. V.; Sidorenko, Maxim Y.; Ministry of Education and Science of the Russian Federation [3049]
}
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10.
Synthesis and structural,
magnetic, and resonance properties of the LiCuFe2(VO4)3
compound
/ T. V. Drokina [et al.]> // Phys. Solid State. - 2016. -
Vol. 58
,
Is. 10
. - P. 1981-1988,
DOI
10.1134/S1063783416100139. - Cited References: 15 . - ISSN 1063-7834
Аннотация:
Complex studies have been performed for the structural, static magnetic, and resonance properties of a new magnet LiCuFe2(VO4)3 prepared by solid-phase synthesis. The temperature dependence of the susceptibility has an anomaly at temperature Tmax = 9.6 K. At high temperatures, the LiCuFe2(VO4)3 sample is in the paramagnetic state described by the Curie–Weiss law at T 50 K and mainly determined by iron ions with effective magnetic moment μeff(exp) = 8.6μB per formula unit. At low temperatures, a long-range magnetic order is observed in the magnetic subsystem of the sample; the order is predominantly characterized by the antiferromagnetic exchange interaction and high frustration level. The exchange interaction parameters are estimated in a six-sublattice representation of the LiCuFe2(VO4)3 magnet. It is shown that the LiCuFe2(VO4)3
compound
is an antiferromagnet with strong intrachain and frustrating interchain exchange interactions.
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Публикация на русском языке
Синтез, структурные, магнитные и резонансные свойства соединения LiCuFe2(VO4)3 [Текст] / Т. В. Дрокина [и др.] // Физ. тверд. тела : Физико-технический институт им. А. Ф. Иоффе РАН, 2016. - Т. 58 Вып. 10. - С. 1913–1920
Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, building 38, Krasnoyarsk, Russian Federation
Far Eastern State Transport University, ul. Serysheva 47, Khabarovsk, Russian Federation
Доп.точки доступа:
Drokina, T. V.; Дрокина, Тамара Васильевна; Petrakovskii, G. A.; Петраковский, Герман Антонович; Bayukov, O. A.; Баюков, Олег Артемьевич; Vorotynov, A. M.; Воротынов, Александр Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Molokeev, M. S.; Молокеев, Максим Сергеевич
}
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11.
Solid-state transformations in
Mn/Bi and Bi/Mn nanofilms: structural and magnetic properties / L. E. Bykova [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. P10.1. - P. 469. - References: 1. - This study was supported by the RFBR (grants ## 15-02-00948, 16-03-00069) and partially by «UMNIK» program . - ISBN 978-5-904603-06-9
Перевод заглавия:
Твердофазные превращения в Mn / Bi и Bi / Mn наноплёнках: структурные и магнитные свойства
Кл.слова (ненормированные):
solid-state transformation
--
compound
MnBi
--
magnetic anisotropy
--
nanofilms
Доп.точки доступа:
Bykova, L. E.; Быкова, Людмила Евгеньевна; Myagkov, V. G.; Мягков, Виктор Григорьевич; Yakovchuk, V. Yu.; Яковчук, Виктор Юрьевич; Zhigalov, V. S.; Жигалов, Виктор Степанович; Volochaev, M. N.; Волочаев, Михаил Николаевич; Мацынин, Алексей Александрович; Matsynin, A. A.; Tambasov, I. A.; Тамбасов, Игорь Анатольевич; Patrin, G. S.; Патрин, Геннадий Семёнович; Bondarenko, G. N.; Бондаренко, Галина Николаевна; 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
Нет сведений об экземплярах
}
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12.
Hydrothermal crystallization of
a Ln2(OH)4SO4·nH2O layered
compound
for a wide range of Ln (Ln = La-Dy), thermolysis, and facile transformation into oxysulfate and oxysulfide phosphors / X. Wang [et al.]> // RSC Adv. - 2017. -
Vol. 7
,
Is. 22
. - P. 13331-13339,
DOI
10.1039/c7ra00645d. - Cited References: 54. - This work was partly supported by the National Natural Science Foundation of China (Grants No. 51672039, 51172038, and 51302032), the Fundamental Research Fund for the Central Universities (Grant No. N140204002), the Grants-in-Aid for Scientific Research (KAKENHI No. 26420686), and the Russian Foundation for Basic Research (15-52-53080). Xuejiao Wang acknowledges the financial support received from the China Scholarship Council for her overseas Ph. D. study at the National Institute of Materials Science (Contract No. 201406080035). . - ISSN 2046-2069
Перевод заглавия:
Гидротермальная кристаллизация слоистых соединений Ln2(OH)4SO4·nH2O с широким диапазоном Ln (Ln = La-Dy), термолиз и плавный переход в оксисульфатные и оксисульфидные люминофоры
Кл.слова (ненормированные):
Dysprosium
--
Hydrothermal synthesis
--
Light emission
--
Phase structure
--
Phosphors
--
Rare earth elements
--
Acceleration voltages
--
Chemical compositions
--
Electron beam irradiation
--
Hydrothermal conditions
--
Hydrothermal crystallization
--
Lanthanide contraction
--
Photoluminescence properties
--
Structure refinements
--
Dysprosium compounds
Аннотация:
The synthesis of a layered Ln2(OH)4SO4·nH2O material (Ln-241) with a smaller lanthanide ion (Dy3+) was successfully achieved through the optimization of the hydrothermal conditions, and the effect of lanthanide contraction on the chemical composition, phase structure, and crystallite/particle morphology of the products was investigated and discussed. Structure refinement showed that the lattice parameters (a, b, and c), cell volume, and axis angle across the series (Ln = La-Dy) monotonously decrease as the size of Ln3+ decreases. Comparative TG/DTA analysis in air indicated that the dehydroxylation temperature of Ln-241 tends to increase, whereas the dehydration and desulfurization temperatures decrease as the size of Ln3+ decreases, thus narrowing the stable temperature range for Ln2O2SO4. Taking advantage of the fact that Ln-241 has exactly the same Ln/S molar ratio as Ln2O2SO4 and Ln2O2S, the latter two groups of important compounds (excluding Ce) were facilely transformed from the former via the removal of water by calcination. The photoluminescence properties of Eu3+ and Tb3+, in terms of excitation, emission, fluorescence decay, quantum yield, and emission color, were investigated and compared for the two hosts Gd2O2S and Gd2O2SO4, and the (Gd0.99Tb0.01)2O2S phosphor was shown to be stable under electron beam irradiation in the studied range and exhibited an increasingly higher emission brightness as the acceleration voltage (up to 7 kV) or beam current (up to 50 μA) increased.
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Держатели документа:
Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang, Liaoning, China
Institute of Ceramics and Powder Metallurgy, School of Materials Science and Engineering, Northeastern University, Shenyang, Liaoning, China
Research Centre for Functional Materials, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
College of New Energy, Bohai University, Jinzhou, Liaoning, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation
School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, Jiangsu, China
World Premier International Centre for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, Tsukuba, Ibaraki, Japan
Доп.точки доступа:
Wang, X.; Li, J. -G.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Liu, W.; Zhu, Q.; Tanaka, H.; Suzuta, K.; Kim, B. -N.; Sakka, Y.
}
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13.
Role of Fe
magnetic subsystems to form a magnetic spin glass state in RFeTi2O7 / T. V. Drokina [et al.]> // J. Magn. Magn. Mater. - 2017. -
Vol. 440
. - P. 41-43,
DOI
10.1016/j.jmmm.2016.12.088. - Cited References:6. - This work has been partially financed by projects MECOM (MAT2014-53921-R) and DGA (IMANA E34) . - ISSN 0304-8853. - ISSN 1873-4766
РУБ
Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
COMPOUND
Кл.слова (ненормированные):
Oxide materials
--
Solid state reaction
--
Cation substitution
--
Spin glasses
Аннотация:
The experimental studies on R3+Fe3+Ti2O7 (R=Sm, Gd, Tb, Tm, Dy) magnetic properties evidence the low temperature spin glass state in all compounds. The possibility of rare-earth cation substitution allows the investigation of the role of magnetic iron Fe3+ ions and rare earth R3+ ions subsystems in a ground state formation in these oxide compounds.
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Доп.точки доступа:
Drokina, T. V.; Дрокина, Тамара Васильевна; Petrakovskii, G. A.; Петраковский, Герман Антонович; Bayukov, O. A.; Баюков, Олег Артемьевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Bartolome, J.; Arauzo, A.; project MECOM [MAT2014-53921-R]; project DGA [IMANA E34]; 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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14.
Tuning the peak
effect in the Y1−xNdxBa2Cu3O7−δ
compound
/ D. M. Gokhfeld [et al.]> // Ceram. Int. - 2017. -
Vol. 43
,
Is. 13
. - P. 9985-9991,
DOI
10.1016/j.ceramint.2017.05.011. - Cited References: 37. - This work was supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project no. 16-48-243018 and the Russian Foundation for Basic Research, project no. 16-38-00400. . - ISSN 0272-8842
Перевод заглавия:
Управление пик-эффектом в соединении Y1−xNdxBa2Cu3O7−δ
Кл.слова (ненормированные):
Peak effect
--
Bulk superconductors
--
Critical current
--
Pinning
--
Characterization
--
YBCO
Аннотация:
Polycrystalline Y1−xNdxBa2Cu3O7−δ (x=0.02, 0.11, and 0.25) superconductors are synthesized. Nd atoms are uniformly distributed over grains. The magnetization loops of the samples have a pronounced second peak in a wide temperature range. The magnetization data are analyzed using the extended critical state model. It is found that the order-disorder transition of the vortex lattice is affected by doping with neodymium and temperature; the second-peak field and width decrease monotonically with increasing x value. The undoped polycrystalline YBa2Cu3O7−δ
compound
is assumed to exhibit the peak effect in higher magnetic fields.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Balaev, D. A.; Балаев, Дмитрий Александрович; Yakimov, I. S.; Petrov, M. I.; Петров, Михаил Иванович; Semenov, S. V.; Семёнов, Сергей Васильевич
}
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15.
Bis(μ3-barbiturato−O,O,O′)-(μ2-aqua)- aqua-barium(II): crystal
structure, spectroscopic and thermal properties / L. A. Solovyov [et al.]> // J. Coord. Chem. - 2017. -
Vol. 70
,
Is. 12
. - P. 1984-1993,
DOI
10.1080/00958972.2017.1319943. - Cited References: 21 . - ISSN 0095-8972
Перевод заглавия:
Бис(μ3-барбитурат-O,O,O')-(μ2-аква)-аква-бария(II): Кристаллическая структура, спектроскопические и термические свойства
Кл.слова (ненормированные):
Barbituric acid
--
barium
--
coordination
compound
--
X-ray diffraction
--
infrared spectroscopy
--
thermal analysis
Аннотация:
A polymeric coordination
compound
, [Ba(H2O) 2(Hba)2] (1) (H2ba – barbituric acid, C4H4N2O3), was obtained. The structure of 1 was solved using powder X-ray diffraction methods. The Ba2+ ion in 1 formed a three-capped trigonal prism. The BaO9 polyhedra, connected with each other by the edges and faces, formed a chain. Several 4- and 12-membered cycles due to the bridging μ2-H2O and bridging μ3-Hba– also formed implementing a 3-D polymer structure. The structures of 1 and other thiobarbiturate complexes were compared. The replacement of a S atom by an O atom in the heterocyclic ligand Htba− (thiobarbiturate ion) of the
compound
Ba(H2O)2(Htba)2 resulted in changes of the coordination number Ba(II) and supramolecular structure. The intermolecular hydrogen bonds O–H⋯O and N–H⋯O formed a 3-D net where pronounced 2-D layers of Hba– ions could be found. A new topological net in 1 was observed. The IR and thermal stability were investigated.
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Держатели документа:
Institute of Chemistry and Chemical Technology, SB RAS, FRC “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
Department of Chemistry, Siberian Federal University, Krasnoyarsk, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation
Доп.точки доступа:
Solovyov, L. A.; Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Lesnikov, M. K.
}
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16.
Antioxidant Activity and
Toxicity of Fullerenols via Bioluminescence Signaling: Role of Oxygen Substituents / E. S. Kovel [et al.]> // Int. J. Mol. Sci. - 2019. -
Vol. 20
,
Is. 9
. - Ст. 2324,
DOI
10.3390/ijms20092324. - Cited References: 74. - This work was supported by PRAN-32, Program: 'Nanostructures: physics, chemistry, biology, technological basis'; RFBR 18-29-19003; RFBR-Krasnoyarsk Regional Foundation 18-44-240004, Tomsk Polytechnic University CE Program. . - ISSN 1422-0067
Кл.слова (ненормированные):
bioactive
compound
--
fullerenol
--
antioxidant activity
--
toxicity
--
reactive oxygen species
--
bioluminescence bioassay
Аннотация:
Fullerenols are nanosized water-soluble polyhydroxylated derivatives of fullerenes, a specific allotropic form of carbon, bioactive compounds, and perspective basis for drug development. Our paper analyzes the antioxidant activity and toxicity of a series of fullerenols with different number of oxygen substituents. Two groups of fullerenols were under investigation: (1) C60Oy(OH)(x), C60,70Oy(OH)(x), where x+y = 24-28 and (2) C60,70Oy(OH)(x), Fe0,5C60Oy(OH)(x), Gd@C82Oy(OH)(x), where x+y = 40-42. Bioluminescent cellular and enzymatic assays (luminous marine bacteria and their enzymatic reactions, respectively) were applied to monitor toxicity in the model fullerenol solutions and bioluminescence was applied as a signaling physiological parameter. The inhibiting concentrations of the fullerenols were determined, revealing the fullerenols' toxic effects. Antioxidant fullerenol' ability was studied in solutions of model oxidizer, 1,4-benzoquinone, and detoxification coefficients of general and oxidative types (D-GT and D-OxT) were calculated. All fullerenols produced toxic effect at high concentrations (>0.01 g L-1), while their antioxidant activity was demonstrated at low and ultralow concentrations (<0.001 g L-1). Quantitative toxic and antioxidant characteristics of the fullerenols (effective concentrations, concentration ranges, D-GT, and D-OxT) were found to depend on the number of oxygen substituents. Lower toxicity and higher antioxidant activity were determined in solutions of fullerenols with fewer oxygen substituents (x+y ⋍ 24-28). The differences in fullerenol properties were attributed to their catalytic activity due to reversible electron acceptance, radical trapping, and balance of reactive oxygen species in aqueous solutions. The results provide pharmaceutical sciences with a basis for selection of carbon nanoparticles with appropriate toxic and antioxidant characteristics. Based on the results, we recommend, to reduce the toxicity of prospective endohedral gadolinium-fullerenol preparations Gd@C82Oy(OH)(x), decreasing the number of oxygen groups to x+y ⋍ 24-28. The potential of bioluminescence methods to compare toxic and antioxidant characteristics of carbon nanostructures were demonstrated.
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Держатели документа:
Institute of Biophysics SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Physics SB RAS, Krasnoyarsk, 660036, Russian Federation
National Research Tomsk Polytechnic University, Tomsk, 634050, Russian Federation
Institute of Physics SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute of Biophysics SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Доп.точки доступа:
Kovel, E. S.; Ковель, Екатерина Сергеевна; Sachkova, A. S.; Vnukova, N. G.; Внукова, Наталья Григорьевна; Churilov, G. N.; Чурилов, Григорий Николаевич; Knyazeva, E. M.; Kudryasheva, N. S.
}
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17.
Formation of Cu6Sn5
intermetallic in Cu/Sn thin films / L. E. Bykova, S. M. Zharkov, V. G. Myagkov [et al.]> // Phys. Solid State. - 2022. -
Vol. 64
,
Is. 14
. - P. 2414-2418,
DOI
10.21883/PSS.2022.14.54350.139. - Cited References: 16. - This research was supported financially by the Russian Foundation for Basic Research (grant No. 19-43-240003). Electron microscopic studies were carried out at the Krasnoyarsk Regional Research Equipment Sharing Center of the Federal Research Center Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences and the Electron Microscopy Laboratory of the Research Equipment Sharing Center of the Siberian Federal University, supported under the state assignment of the Ministry of Science and Higher Education of the Russian Federation (scientific topic code FSRZ-2020-0011) . - ISSN 1063-7834. - ISSN 1090-6460
Кл.слова (ненормированные):
thin films
--
Cu6Sn5 intermetallic
compound
--
transmission electron microscopy
--
electron diffraction
Аннотация:
The study of the formation of the Cu6Sn5 intermetallic
compound
in Sn(55 nm)/Cu(30 nm) thin bilayer films was carried out directly in the column of a transmission electron microscope (electron diffraction mode) by heating the film sample from room temperature to 300oC and recording the electron diffraction patterns. The thin films formed as a result of a solid state reaction were monophase and consisted of the η-Cu6Sn5 hexagonal phase. The temperature range for the formation of the η-Cu6Sn5 phase was determined. The estimate of the effective interdiffusion coefficient of the reaction suggests that the main mechanism for the formation of the Cu6Sn5 intermetallic is diffusion along the grain boundaries and dislocations.
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Публикация на русском языке
Формирование интерметаллида Cu6Sn5 в тонких пленках Cu/Sn [Текст] / Л. Е. Быкова, С. М. Жарков, В. Г. Мягков [и др.] // Физ. тверд. тела. - 2021. - Т. 63 Вып. 12. - С. 2205-2209
Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia
Доп.точки доступа:
Bykova, L. E.; Быкова, Людмила Евгеньевна; Zharkov, S. M.; Жарков, Сергей Михайлович; Myagkov, V. G.; Мягков, Виктор Григорьевич; Balashov, Yu. Yu.; Балашов, Юрий Юрьевич; Patrin, G. S.; Патрин, Геннадий Семёнович
}
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18.
EPR study of
solid solutions, based on the
compound
ScF3 [Text] / V. N. Voronov, E. A. Petrakovskaya, A. V. Alexandrovskaya> //
International Conference "Functional Materials" (ICFM-09) : book of abstracts : october 5-10, Ukraine, Crimea, Partenit. - 2009. - P61
Доп.точки доступа:
Voronov, V.N.; Petrakovskaya, E.A.; Alexandrovskaya, A.V.; "Functional Materials", International Conference(4 ; 2009 ; OCT ; Partenit, Crimea, Ukraine)
}
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19.
EPR Study of
Solid Solutions Based on the
Compound
ScF3 [Text] / Voronov V.N., Petrakovskaya E.A., Alexandrovskaya A.V.> // Functional Materials. - 2010. -
Vol. 17
,
Is. 3
. - P324-328
Доп.точки доступа:
Voronov, V. N.; Воронов Владимир Николаевич; Petrakovskaya, E. A.; Петраковская Элеонора Анатольевна; Alexandrovskaya, A. V.
}
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20.
Phase transitions in
a polycrystalline
compound
Ho0.1Mn0.9S / O. B. Romanova, S. S. Aplesnin, M. N. Sitnikov [et al.]> // Solid State Commun. - 2023. -
Vol. 364
. - Ст. 115134,
DOI
10.1016/j.ssc.2023.115134. - Cited References: 35. - The investigation of microstructural properties of the samples was carried out using equipment's (SEM) the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center « Krasnoyarsk Science Center SB RAS». This work was supported by the Russian Science Foundation, the Government of the Krasnoyarsk Territory, and the Krasnoyarsk Science Foundation project no. 23-22-10016 «The colossal Nernst-Ettingshausen effect in manganese chalcogenides with rare earth substitution» . - ISSN 0038-1098. - ISSN 1879-2766
Кл.слова (ненормированные):
Semiconductors
--
Structural transitions
--
Electronic transitions
--
Mott - Anderson model
Аннотация:
Sequence of structural transitions in the magnetically ordered region and a displacement-type structural transition at T = 220 K accompanied by the variation in the thermal expansion coefficient, ultrasound attenuation coefficient, g factor, and polarization current in the polycrystalline
compound
Ho0.1Mn0.9S was found. The electronic transitions above room temperature were established on the basis of the measurements of the conductivity, ultrasound attenuation maxima, and IR spectra.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok, 50, Krasnoyarsk, 660036, Russia
Reshetnev Siberian State University of Science and Technology, Krasnoyarsky Rabochy Av., 31, Krasnoyarsk, 660014, Krasnoyarsk, Russia
Доп.точки доступа:
Romanova, O. B.; Романова, Оксана Борисовна; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Sitnikov, M. N.; Udod, L. V.; Удод, Любовь Викторовна; Zelenov, F. V.
}
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