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Bayukov, O. A.
Magnetic and mossbauer studies of anion-substituted nickel ferrites / O. A. Bayukov, V. P. IKONNIKOV, A. F. SAVITSKII // Phys. Status Solidi B. - 1989. - Vol. 151, Is. 1. - P. 269-274, DOI 10.1002/pssb.2221510131. - Cited References: 14 . - ISSN 0370-1972

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
IKONNIKOV, V. P.; SAVITSKII, A. F.; Баюков, Олег Артемьевич
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Balaev, A. D.
Magnetic and mossbauer studies of magnesium-chromium ferrites / A. D. Balaev, O. A. Bayukov, A. F. Savitskii // Phys. Status Solidi B. - 1989. - Vol. 152, Is. 2. - P. 639-644, DOI 10.1002/pssb.2221520226. - Cited References: 10 . - ISSN 0370-1972

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
Bayukov, O. A.; Баюков, Олег Артемьевич; Savitskii, A. F.; Балаев, Александр Дмитриевич
}
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MOSSBAUER STUDY OF POTASSIUM FERRITES / O. A. BAYUKOV [и др.] // Fiz. Tverd. Tela. - 1993. - Vol. 35, Is. 6. - P. 1449-1456. - Cited References: 16 . - ISSN 0367-3294

РУБ Physics, Condensed Matter
Рубрики:
BETA-ALUMINA

WOS

Доп.точки доступа:
BAYUKOV, O. A.; PETRAKOVSKII, G. A.; SABLINA, K. A.; MATVEIKO, E. N.
}
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Mossbauer study of copper ferrite / O. A. Bayukov [и др.] // Fiz. Tverd. Tela. - 1995. - Vol. 37, Is. 8. - P. 2409-2412. - Cited References: 9 . - ISSN 0367-3294

РУБ Physics, Condensed Matter
Рубрики:
CU-ZN FERRITE

WOS

Доп.точки доступа:
Bayukov, O. A.; Баюков, Олег Артемьевич; Petrakovskii, G. A.; Петраковский, Герман Антонович; Sablina, K. A.; Саблина, Клара Александровна; Savitskii, A. F.
}
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Electron-microscopy and mossbauer study of superlattices in iron films / G. I. Frolov, O. A. Bayukov, V. S. Zhigalov [et al.] // JETP Letters. - 1995. - Vol. 61, Is. 1. - P. 63-67. - Cited References: 6 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary

WOS
Доп.точки доступа:
Frolov, G. I.; Фролов, Георгий Иванович; Bayukov, O. A.; Баюков, Олег Артемьевич; Zhigalov, V. S.; Жигалов, Виктор Степанович; Kveglis, L. I.; Квеглис, Людмила Иосифовна; Myagkov, V. G.; Мягков, Виктор Григорьевич
}
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Frolov, G. I.
Phase composition of nanocrystalline iron films deposited in a nitrogen atmosphere / G. I. Frolov, V. S. Zhigalov, O. A. Bayukov // Phys. Solid State. - 1999. - Vol. 41, Is. 10. - P. 1669-1671, DOI 10.1134/1.1131050. - Cited References: 14 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
ELECTRON-MICROSCOPY
MOSSBAUER
Аннотация: The phase composition of iron films prepared by pulsed-plasma deposition in a controlled nitrogen atmosphere is investigated by Mossbauer spectroscopy. The observed changes in the phase composition are dictated by the nanocrystalline structure of the samples and the dynamics of the substrate temperature during film deposition. (C) 1999 American Institute of Physics. [S1063-7834(99)02110-3].

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Публикация на русском языке Фролов, Георгий Иванович. Фазовый состав нанокристаллических пленок железа, осажденных в атмосфере азота [Текст] / Г. И. Фролов, В. С. Жигалов, О. А. Баюков // Физ. тверд. тела. - Санкт-Петербург, 1999. - Т. 41 Вып. 10. - С. 1819-1821

Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Zhigalov, V. S.; Жигалов, Виктор Степанович; Bayukov, O. A.; Баюков, Олег Артемьевич; Фролов, Георгий Иванович
}
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Analysis of the electrical and optical properties of VBO3 single crystals and Fe1-xVxBO3 solid solutions on the basis of a many-electron model of energy band structure / N. B. Ivanova [et al.] // Phys. Solid State. - 2004. - Vol. 46, Is. 8. - P. 1462-1468, DOI 10.1134/1.1788779. - Cited References: 32. - One of the authors (M.M.A.) would like to thank the Deutsche Forschungsgemeinschaft (SFB608) for financial support. This study was supported by the Russian Foundation for Basic Research (project no. 03-02-16286), the program "Integration" (project no. B0017), and the program of the Division of Physical Sciences of the Russian Academy of Sciences "Strongly Correlated Electrons" . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
MAGNETIC-PROPERTIES
   CALCITE STRUCTURE
   PHASE-TRANSITION
   FERRIC BORATE
   HIGH-PRESSURE
   FEBO3
   FE1-XCRXBO3
   FERROMAGNET
   MOSSBAUER
   SPECTRA
Аннотация: A many-electron model of the energy band structure of VBO3 and of Fe1 - xVxBO3 solid solutions is proposed with strong electron correlations taken into account. Experimental optical absorption spectra and data on the resistivity are discussed in the framework of the suggested model. Variation in the magnetic and electronic properties of VBO3 and Fe1 - xVxBO3 under high pressure is predicted. For VBO3, a Mott-Hubbard (insulator-metal) transition is expected in the high-pressure phase. In Fe1 - xVxBO3 solid solutions, a nontrivial variation in the properties is predicted, leading to the appearance of a different magnetic state. (C) 2004 MAIK "Nauka / Interperiodica".

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Публикация на русском языке Анализ электрических и оптических свойств монокристаллов VBO[3] и твердых растворов Fe[1-x]V[x]BO[3] на основе многоэлектронной модели из зонной структуры [Текст] / Н. Б. Иванова [и др.] // Физ. тверд. тела. - 2004. - Т. 46 Вып. 8. - С. 1422-1427

Держатели документа:
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany
ИФ СО РАН
Krasnoyarsk State Tech. University, Krasnoyarsk, 660074, Russian Federation
II. Physikalisches Institut, Universitat zu Koln, Koln, 50937, Germany

Доп.точки доступа:
Ivanova, N. B.; Иванова, Наталья Борисовна; Kazak, N. V.; Казак, Наталья Валерьевна; Markov, V. V.; Марков, Владимир Витальевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Rudenko, V. V.; Руденко, Валерий Васильевич; Abd-Elmeguid, M. M.
}
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Mossbauer effect study in Fe1-xVxBO3 solid solutions / O. A. Bayukov [et al.] ; Translated by G. Skrebtsov // Phys. Solid State. - 2004. - Vol. 46, Is. 6. - P. 1088-1094, DOI 10.1134/1.1767250. - Cited References: 28. - One of the authors (M.M. A.-E.) would like to thank the Deutsche Forschungsgemeinschaft for financial support (SFB 608). This study was supported by the Russian Foundation for Basic Research (project no. 03-02-16286) and the federal program “Integration” (project no. Б0017) . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
MAGNETO-OPTICAL PROPERTIES
   FEBO3 SINGLE-CRYSTALS
   FERRIC BORATE
   CALCITE STRUCTURE
   IRON BORATE
   TEMPERATURE
   FIELD
   SPECTRA
   FE3BO6
   CRBO3
Аннотация: The Mossbauer effect in the Fe1 - xVxBO3 solid solutions has been measured at 130 and 300 K. The Fe0.05V0.95BO3 composition was studied in the interval 4.2-300 K. The experimental data obtained are described in terms of the model of a dilute magnetic insulator in which atoms of the first coordination sphere provide a major contribution to the hyperfine field at iron nucleus sites. It was found that, at low temperatures, the field H-hf is generated primarily by the iron ion itself and depends only weakly on substitution. The hyperfine interaction parameters in the discrete configuration series 6Fe, 5Fe1V, 4Fe2V, 3Fe3V, and 2Fe4V were determined. The magnitude of the isomer shift suggests that iron in the crystal resides in the trivalent state. (C) 2004 MAIK "Nauka/Interperiodica".

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Публикация на русском языке Эффект Мессбауэра в твердых растворах Fe[1-x]V[x]BO[3] [Текст] / О. А. Баюков [и др.] // Физ. тверд. тела. - 2004. - Т. 46 Вып. 6. - С. 1058-1064

Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Cologne, Inst Phys, D-50937 Cologne, Germany
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
ИФ СО РАН
Physikalisches Institut, Universitat zu Koln, Koln, 50937, Germany
Krasnoyarsk Stt. Tech. University, Krasnoyarsk, 660074, Russian Federation

Доп.точки доступа:
Bayukov, O. A.; Баюков, Олег Артемьевич; Abd-Elmeguid, M. M.; Ivanova, N. B.; Иванова, Наталья Борисовна; Kazak, N. V.; Казак, Наталья Валерьевна; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Rudenko, V. V.; Руденко, Валерий Васильевич; Skrebtsov, G. \пер.\
}
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Spin reorientation effects in GdFe3(BO3)(4) induced by applied field and temperature / S. A. Kharlamova [et al.] // J. Exp. Theor. Phys. - 2005. - Vol. 101, Is. 6. - P. 1098-1105, DOI 10.1134/1.2163925. - Cited References: 14 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
RM(3)(BO3)(4) CRYSTALS
GROWTH
Кл.слова (ненормированные):
Antiferromagnetism -- Ground state -- Magnetic moments -- Magnetic properties -- Mossbauer spectroscopy -- Single crystals -- Temperature distribution -- Spin orientation -- Static magnetic measurements -- Gadolinium compounds
Аннотация: Magnetic properties of GdFe3(BO3)(4) single crystals were investigated by Fe-57-Mossbauer spectroscopy and static magnetic measurements. In the ground state, the GdFe3(BO3)(4) crystal is an easy-axis compensated antiferromagnet, but the easy axis of iron moments does not coincide with the crystal C-3 axis, deviating from it by about 20 degrees. The spontaneous and field-induced spin reorientation effects were observed and studied in detail. The specific directions of iron magnetic moments were determined for different temperatures and applied fields. Large values of the angle between the Fe3+ magnetic moments and the C-3 axis in the easy-axis phase and between Fe3+ moments and the a(2) axis in the easy-plane phase reveal the tilted antiferromagnetic structure. (c) 2005 Pleiades Publishing, Inc.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Liverpool, Liverpool L69 3BX, Merseyside, England
Inst Crystallog, Moscow 119333, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
University of Liverpool, L69 3BX, Liverpool, United Kingdom
Institute of Crystallography, Moscow, 119333, Russian Federation

Доп.точки доступа:
Kharlamova, S. A.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Balaev, A. D.; Балаев, Александр Дмитриевич; Thomas, M. F.; Lyubutin, I. S.; Gavriliuk, A. G.
}
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10.

Studies of magnetic and optic properties of rare-earth gallo-ferroborates by Mossbauer and optical spectroscopy / O. A. Bayukov [et al.] // Physica B. - 2005. - Vol. 359: International Conference on Strongly Correlated Electron Systems (SCES 04) (JUL 26-30, 2004, Karlsruhe, GERMANY). - P. 1321-1323, DOI 10.1016/j.physb.2005.01.397. - Cited References: 3 . - ISSN 0921-4526

РУБ Physics, Condensed Matter

Кл.слова (ненормированные):
strongly correlated electron system -- antiferromagnets -- borates -- Antiferromagnets -- Borates -- Strongly correlated electron system -- Antiferromagnetism -- Cryostats -- Energy gap -- Magnetic moments -- Magnetic properties -- Mossbauer spectroscopy -- Optical properties -- Single crystals -- Borates -- Coulomb correlations -- Liquid helium -- Strongly correlated electron systems -- Gadolinium compounds
Аннотация: Magnetic and optical properties of GdFe3-xGax(BO3)(4) single crystals are investigated by Mossbauer and optical spectroscopy. The GdFe3(BO3)(4) multielectron band structure model is derived. A high- and low-spin crossover of Fe3+ ion, a collapse of the magnetic moment, the suppression of Coulomb correlations, and insulator-semiconductor transition are predicted. The jump of an energy gap is measured at pressure 43 GPa. (c) 2005 Elsevier B.V. All rights reserved.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk, Russia
Inst High Pressure Phys, Troitsk 142190, Russia
Inst Crystallog, Moscow 117333, Russia
Univ Liverpool, Liverpool L69 3BX, Merseyside, England
ИФ СО РАН
LV Kirensky Institute of Physics, Siberian Branch of RAS, Krasnoyarsk, Russian Federation
Institute of High Pressure Physics, 142190, Troisk, Moscow region, Russian Federation
Institute of Crystallograhy, Leninsky Av. 59, 117333, Moscow, Russian Federation
The University of Liverpool, Liverpool L69 3BX, United Kingdom

Доп.точки доступа:
Bayukov, O. A.; Баюков, Олег Артемьевич; Gavrilyuk, A. M.; Zabluda, V. N.; Заблуда, Владимир Николаевич; Lyubutin, I. S.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Potseluyko, A. M.; Tomas, M.; Trojan, I. A.; Kharlamova, S. A.
}
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11.

Mossbauer magnetization and resistivity studies of Fe1.91V0.09BO4 / N. V. Kazak [et al.] // Physica B. - 2005. - Vol. 359: International Conference on Strongly Correlated Electron Systems (SCES 04) (JUL 26-30, 2004, Karlsruhe, GERMANY). - P. 1324-1326, DOI 10.1016/j.physb.2005.01.396. - Cited References: 8 . - ISSN 0921-4526

РУБ Physics, Condensed Matter
Рубрики:
FE2OBO3
Кл.слова (ненормированные):
Mott-hubbard system -- magnetism -- new materials -- Magnetism -- Mott-hubbard system -- New materials -- Crystallization -- Crystallography -- Fermi level -- Ferrimagnetism -- Magnetism -- Magnetization -- Mossbauer spectroscopy -- Phase transitions -- Single crystals -- X ray diffraction analysis -- Charge ordering -- Electron-electron interactions -- Mott-hubbard system -- New materials -- Iron compounds
Аннотация: Single crystals of Fe1.91V0.09BO4 were prepared by spontaneous crystallization using a solution melt technology for the first time and its structure, electronic and magnetic properties were investigated by X-ray diffraction, Mossbauer spectroscopy, magnetization and electrical measurements. Room-temperature Mossbauer measurements indicate that "localized" (Fe2+, Fe3+) and "delocalized" (Fe2.5+) states in ratio 0.31:0.345:0.345 distributed over two crystallographically non-equivalent positions exist. The results of magnetic measurements show that warwickite is a P-type ferrimagnet below T = 130 K. Resistivity measurements show a variable-range-hopping when electron-electron interactions cause a soft Coulomb gap in the density of states at the Fermi energy. (c) 2005 Elsevier B.V. All rights reserved.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
ИФ СО РАН
LV Kirensky Institute of Physics, Siberian Branch of RAS, 660036 Krasnoyarsk, Russian Federation
Krasnoyarsk State Tech. University, 660074 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kazak, N. V.; Казак, Наталья Валерьевна; Balaev, A. D.; Балаев, Александр Дмитриевич; Ivanova, N. B.; Иванова, Наталья Борисовна; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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12.

Electronic properties of Fe1-xVxBO3 at ambient conditions and at high pressure / N. V. Kazak [et al.] // J. Phys.: Condens. Matter. - 2005. - Vol. 17: 2nd International Symposium on Physics of Solids Under High Pressure Using Nuclear Probes (JUL 20-24, 2004, Cologne, GERMANY), Is. 11. - P. S795-S800, DOI 10.1088/0953-8984/17/11/008. - Cited References: 16 . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
FEBO3 SINGLE-CRYSTALS
   SOLID-SOLUTIONS
   BAND-STRUCTURE
   TRANSITION
   MOSSBAUER
   MAGNETIZATION
   MODEL
   VBO3
Кл.слова (ненормированные):
Electronic properties -- Ferrimagnetic materials -- High pressure effects -- High temperature superconductors -- Metal insulator transition -- Single crystals -- Superconductivity -- Thermal effects -- Carrier localization -- Correlation effects -- Critical pressure -- Semiconducting behavior -- Oxide superconductors
Аннотация: We present the results of an in-plane resistivity study of the solid solutions Fe1-xVxBO3. The measurements were made on single crystals with concentration x = 0.02, 0.13, 0.18, 0.3, 0.95, 1.0 in the temperature range 220-600 K. Semiconducting behaviour for samples with x >= 0.13 was found. Mott variable-range-hopping transport rho(T) = rho(0)exp(T*/T)(alpha) has been observed with alpha = 1/4 at T <290 K, suggesting carrier localization. Above this temperature the activation-type conductivity, with activation energies, E-a, about 1 eV for all samples, is observed. The possible electronic states and band structure of Fe1-xVx BO3 crystals are discussed in the different pressure ranges: P < P-c(Fe), p(c)(Fe) < p < p(c)(V) P > P-c(V) where p(c)(Fe) P-c(V) are the critical pressure values for FeBO3 and VBO3, respectively.

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Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
II Physikalisches Institut, Universitat zu Koeln, 50937 Koeln, Germany
Krasnoyarsk State Tech. University, 660074 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kazak, N. V.; Казак, Наталья Валерьевна; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Abd-Elmeguid, M. M.; Ivanova, N. B.; Иванова, Наталья Борисовна
}
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13.

Mossbauer and magnetic study of microspheres extracted from fly ashes of power stations [Text] / O. A. Bayukov [et al.] // The Physics of Metals and Metallography. - 2006. - Т. 102, SUPPL. 1, DOI 10.1134/S0031918X06140134 . - ISSN 0031-918X. - ISSN 1531-8672

ГРНТИ

29.19

MeSH-главная:

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Держатели документа:
Institute of Chemistry and Chemical Technology,Siberian Division,Russian Academy of Sciences
Kirensky Institute of Physics,Siberian Division,Russian Academy of Sciences
Доп.точки доступа:
Bayukov, O. A.; Баюков, Олег Артемьевич; Balaev, A. D.; Балаев, Александр Дмитриевич; Petrov, M. I.; Петров, Михаил Иванович; Anshits, A. G.; Аншиц, Александр Георгиевич; Sharonova, O. M.; Rabchevskii, E. V.
}
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14.

Magnetic order in FeCr2S4-type chalcogenide spinels / F. J. Berry [et al.] // J. Phys.: Condens. Matter. - 2007. - Vol. 19, Is. 26. - Ст. 266204, DOI 10.1088/0953-8984/19/26/266204. - Cited References: 15 . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
COLOSSAL-MAGNETORESISTANCE
TRANSITION
Кл.слова (ненормированные):
Doping (additives) -- Iron compounds -- Magnetization -- Magnetoresistance -- Mossbauer spectroscopy -- X ray absorption fine structure spectroscopy -- Chalcogenide spinels -- Low temperature magnetic behaviour -- Magnetic ordering temperature -- Thiospinels -- Chalcogenides
Аннотация: The thiospinels of composition FeCr2S4 and Fe1+xCr2-2xSnxS4 with 0 < x < 0.1 have been examined by means of extended x- ray absorption fine structure, Mossbauer spectroscopy and magnetoresistance techniques. The structural characterization shows that tin enters the spinel- related lattice as Sn4+ and occupies the octahedral B site. Appreciable magnetoresistance is observed in the temperature range 160 - 185 K which includes the magnetic ordering temperature. The effect of slight non- stoichiometry in FeCr2S4 and of tin doping is observed in the M r ossbauer spectra which show the Fe2+ ions to occupy the tetrahedral A sites. The M r ossbauer spectra recorded around the magnetic ordering temperature are sensitive to small ( 0.03 T) applied magnetic fields. The influence of tin on the low temperature magnetic behaviour is associated with the distribution of Cr3+, Sn4+ and Fe3+ ions around tetrahedral Fe2+ sites and vacancies in the anionic sublattice. An interpretation of the colossal magnetoresistance phenomena below TN is suggested.

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Держатели документа:
Open Univ, Dept Chem, Milton Keynes MK7 6AA, Bucks, England
Russian Acad Sci, AV Shubnikov Crystallog Inst, Moscow 119333, Russia
Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England
Russian Acad Sci, Inst Inorgan & Gen Chem, Moscow 119907, Russia
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Department of Chemistry, Open University, Walton Hall, Milton Keynes MK7 6AA, United Kingdom
A V Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninsky avenue 59, Moscow 119333, Russian Federation
Department of Physics, University of Liverpool, Liverpool L69 3BX, United Kingdom
Institute of Inorganic and General Chemistry, Russian Academy of Sciences, Leninsky avenue 31, Moscow 119907, Russian Federation
L V Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Berry, F. J.; Dmitrieva, T. V.; Ovanesyan, N. S.; Lyubutin, I. S.; Thomas, M. F.; Sarkisyan, V. A.; Ren, X.; Aminov, T. G.; Shabunina, G. G.; Rudenko, V.; Vorotynov, A. M.; Воротынов, Александр Михайлович; Dubinskaya, Y. L.
}
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15.

Mossbauer studies of FexMn1-xS single crystals / G. M. Abramova [et al.] // Phys. Solid State. - 2008. - Vol. 50, Is. 2. - P. 237-240, DOI 10.1134/S1063783408020042. - Cited References: 16 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
METAL-INSULATOR-TRANSITION
   MAGNETIC-PROPERTIES
   ALPHA-MNS
   SULFIDES
   MAGNETORESISTANCE
   PRESSURE
   SYSTEM
   OXIDES
Аннотация: Single crystals of iron manganese sulfides FexMn1-xS (0.25

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Держатели документа:
[Abramova, G. M.
Petrakovskii, G. A.
Bayukov, O. A.
Bovina, A. F.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Varnek, V. A.
Sokolov, V. V.] Russian Acad Sci, Siberian Branch, Nikolaev Inst Inorgan Chem, Novosibirsk 630090, Russia
ИФ СО РАН

Доп.точки доступа:
Abramova, G. M.; Абрамова, Галина Михайловна; Petrakovskii, G. A.; Петраковский, Герман Антонович; Bayukov, O. A.; Баюков, Олег Артемьевич; Varnek, V. A.; Sokolov, V. V.; Bovina, A. F.; Бовина, Ася Федоровна
}
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16.

Formation and evolution of magnetic nanoparticles in borate glass simultaneously doped with Fe and Mn oxides / J. . Kliava [et al.] // J. Appl. Phys. - 2008. - Vol. 104, Is. 10. - Ст. 103917, DOI 10.1063/1.3021289. - Cited References: 37. - A financial support from the Russian Foundation for Basic Research (RFBR)-CNRS (Grant No. 07-02-92174) is highly appreciated. R. Ivantsov is grateful to the Russian Science Support Foundation. Y. Yeshurun acknowledges the support of the Israel Scienc Foundation (ISF). . - ISSN 0021-8979

РУБ Physics, Applied
Рубрики:
COBALT FERRITE PARTICLES
   SUPERPARAMAGNETIC RESONANCE
   GAMMA-FE2O3 NANOPARTICLES
   MATRIX
   SIZE
   SYSTEMS
Кл.слова (ненормированные):
aluminium compounds -- borate glasses -- coercive force -- Faraday effect -- heat treatment -- iron compounds -- magnetic hysteresis -- magnetic particles -- magnetic susceptibility -- manganese compounds -- Mossbauer effect -- nanoparticles -- paramagnetic materials -- potassium compounds -- remanence -- superparamagnetism -- transmission electron microscopy -- X-ray chemical analysis -- Atomic spectroscopy -- Auger electron spectroscopy -- Crystal structure -- Electric relays -- Electronic medical equipment -- Ferrite -- Ferrites -- Glass -- Heat treatment -- Hysteresis -- Hysteresis loops -- Magnetic properties -- Magnetic resonance measurement -- Magnetic susceptibility -- Magnetism -- Manganese -- Manganese compounds -- Molybdenum -- Nanoparticles -- Optical properties -- Ozone water treatment -- Polydispersity -- Superparamagnetism -- Borate glasses -- Concentration ratios -- Electron magnetic resonances -- Emr spectrums -- Experimental techniques -- Faraday rotations -- Glass compositions -- Glass matrixes -- Glass preparations -- Magnetic measurements -- Magnetic nano particles -- Magnetic orders -- Magnetically ordered systems -- Magneto-optical properties -- Manganese ferrites -- Mean diameters -- Mn oxides -- Phase states -- Polydisperse nanoparticles -- Remnant magnetizations -- Ssbauer spectroscopies -- Superparamagnetic -- Superparamagnetic states -- Thermal treatments -- Variable temperatures -- Magnetic materials
Аннотация: Evolution of the phase state of paramagnetic additions at various stages of synthesis and subsequent thermal treatment of glasses of the system Al(2)O(3)-K(2)O-B(2)O(3) simultaneously doped with Fe(2)O(3) and MnO is studied by means of a combination of experimental techniques: Faraday rotation (FR), electron magnetic resonance (EMR), transmission electron microscopy (TEM), Mossbauer spectroscopy, and magnetic measurements. Both FR and EMR show that magnetically ordered clusters occur already at the first stage of the glass preparation. In particular, for the ratio of the Fe and Mn oxides in the charge close to 3:2, fine magnetic nanoparticles are formed with characteristics similar to those of manganese ferrite. By computer simulating the EMR spectra at variable temperatures, a superparamagnetic nature of these nanoparticles is confirmed and their mean diameter is estimated as approximately 3.2 nm. In the thermally treated glasses larger magnetic nanoparticles are formed, giving rise to FR spectra, characteristic of magnetically ordered systems, and the EMR spectra different from those in as-prepared glasses but also showing superparamagnetic narrowing. The Mossbauer spectroscopy corroborates the manganese ferrite structure of the nanoparticles and indicates their coexistence in the ferrimagnetic and superparamagnetic states. The TEM shows the presence of polydisperse nanoparticles on the background of the glass matrix, and electron diffraction of a selected region containing larger particles indicates a crystal structure close to that of MnFe(2)O(4). Energy-dispersive atomic x-ray spectra confirm that the major part of Fe and Mn introduced to the glass composition is gathered in the particles, with the concentration ratio close to 2:1, characteristic of bulk MnFe(2)O(4). Magnetic hysteresis loops of samples subjected to an additional thermal treatment demonstrate a strong increase in the coercive force, remnant magnetization, and high-field magnetic susceptibility with temperature decrease. The consistent results obtained using various techniques demonstrate that the formation of nanoparticles with characteristics close to those of MnFe(2)O(4) confers to these glasses magnetic and magneto-optical properties typical of substances possessing magnetic order.

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Держатели документа:
[Kliava, J.] Univ Bordeaux 1, CNRS, UMR 5798, CPMOH, F-33405 Talence, France
[Edelman, I.
Ivanova, O.
Ivantsov, R.
Bayukov, O.
Petrakovskaja, E.
Stepanov, S.] RAS, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Zaikovskiy, V.] RAS, Siberian Branch, Boreskov Inst Catalysis, Novosibirsk 630090, Russia
[Bruckental, I.
Yeshurun, Y.] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel
[Stepanov, S.] SI Vavilov State Opt Inst, St Petersburg 199034, Russia
ИФ СО РАН
CPMOH, Universit? Bordeaux, 1-CNRS UMR 5798, 33405 Talence Cedex, France
Kirensky Institute of Physics, Siberian Branch of RAS, 660036 Krasnoyarsk, Russian Federation
Boreskov Institute of Catalysis, Siberian Branch, RAS, 630090 Novosibirsk, Russian Federation
Department of Physics, Bar-Ilan University, Ramat-Gan 52900, Israel
S. I. Vavilov State Optical Institute, St. Petersburg 199034, Russian Federation

Доп.точки доступа:
Kliava, J.; Edelman, I. S.; Эдельман, Ирина Самсоновна; Ivanova, O. S.; Иванова, Оксана Станиславовна; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Bayukov, O. A.; Баюков, Олег Артемьевич; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна; Zaikovskiy, V.; Bruckental, I.; Yeshurun, Y.; Stepanov, S.
}
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17.

Optical and Mossbauer Spectroscopy of Europium Gallium Garnet Single Crystals Grown from Fluxes of Different Content / A. S. Aleksandrovsky, V. G. Arkhipkin [et al.] // Известия высших учебных заведений. Физика. - 2008. - Т. 51, № 10/2. - P110-114

Доп.точки доступа:
Aleksandrovsky, A.S.; Arkhipkin, V.G.; Bezmaternykh, L.N.; Gudim, I.A.; Krylov, A.S.; Vagizov, F.
}
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18.

Mossbauer studies of Fex Mn1 - X S single crystals / G. M. Abramova [et al.] // Physics of the Solid State. - 2008. - Vol. 50, № 2. - P. 237-240, DOI 10.1007/s11451-008-2004-1 . - ISSN 1063-7834. - ISSN 1090-6460

РИНЦ
Держатели документа:
Kirensky Institute of Physics,Siberian Branch,Russian Academy of Sciences
Nikolaev Institute of Inorganic Chemistry,Siberian Branch,Russian Academy of Sciences

Доп.точки доступа:
Abramova, G. M.; Абрамова, Галина Михайловна; Petrakovskii, G. A.; Петраковский, Герман Антонович; Bayukov, O. A.; Баюков, Олег Артемьевич; Bovina, A. F.; Бовина, Ася Федоровна; Varnek, V. A. ; Sokolov, V. V.
}
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19.

Evolution of the structure and magneto-optical properties of Mn (x) Fe3-x O-4 films prepared by solid-state reactions / I. S. Edelman [et al.] // Phys. Solid State. - 2008. - Vol. 50, Is. 12. - P. 2289-2294, DOI 10.1134/S106378340812010X. - Cited References: 13. - We are grateful to G.N. Bondarenko for x-ray diffraction measurements.This study was supported by the Russian Foundation for Basic Research (project no. 07-02-92174_ NTsNI) and the Program "Development of the Scientific Potential of the Higher Education School." . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
MOSSBAUER
Аннотация: This paper reports on the results of investigations into the structure and the magnetic and magnetooptical properties of thin films Mn (x) Fe3 - x O-4 prepared by solid-state reactions: isothermal annealing, self-propagating high-temperature synthesis, and a combination of these two regimes. The regimes favorable for the formation of films close in composition and structure to the stoichiometric compounds MnFe2O4 or Fe3O4 are established. The features observed in the spectral response of the magneto-optical Faraday effect and of the magnetic circular dichroism of the MnFe2O4 films are considered in terms of the electronic transitions in magnetic ions, primarily Fe3+, which occupy octahedral positions in the spinel structure.

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Держатели документа:
[Edelman, I. S.
Polyakova, K. P.
Polyakov, V. V.
Bayukov, O. A.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Ivanova, O. S.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Svobodny pr. 79, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Edelman, I. S.; Эдельман, Ирина Самсоновна; Ivanova, O.; Polyakova, K.; Polyakov, V.; Bayukov, O. A.; Баюков, Олег Артемьевич
}
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20.

Magnetostriction of FexMn1-xS (x=0.27) Crystals / G. M. Abramova [et al.] // JETP Letters. - 2009. - Vol. 90, Is. 3. - P. 207-210, DOI 10.1134/S0021364009150107. - Cited References: 19. - This work was supported by the Siberian Branch, Russian Academy of Sciences, and INTAS, joint project no. 06-1000013-9002. . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
ALPHA-MNS
   SINGLE-CRYSTALS
   TRANSITION
   MOSSBAUER
Аннотация: The magnetostriction of FexMn1-xS (x = 0.27) single crystals in strong magnetic fields up to 120 kOe has been investigated. It has been found that the magnetostriction reaches colossal values (+/-3 x 10(-4)) atypical of compounds of 3d elements. It has been found that the magnetostriction changes sign when varying temperature and magnetic field; this behavior indicates an important role of the spin-phonon interactions in the formation of the magnetic order in solid solutions of iron-manganese sulfides.

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Держатели документа:
[Abramova, G. M.
Petrakovskiy, G.
Bovina, A. F.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Zuberek, R.
Nabialek, A.] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
[Boem, M.] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France
[Sokolov, V.] Russian Acad Sci, Nikolaev Inst Inorgan Chem, Siberian Branch, Novosibirsk 630090, Russia
[Petrakovskiy, G.] Siberian Fed Univ, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Institute of Physics, Polish Academy of Sciences, PL-02-668 Warsaw, Poland
Institut Laue-Langevin, Grenoble, France
Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation
Siberian Federal University, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Abramova, G. M.; Абрамова, Галина Михайловна; Petrakovskiy, G. A.; Петраковский, Герман Антонович; Zuberek, R.; Nabialek, A.; Boem, M.; Sokolov, V. V.; Соколов В. В.; Bovina, A. F.; Бовина, Ася Федоровна; Siberian Branch, Russian Academy of Sciences; INTAS [06-1000013-9002]
}
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