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    Микромагнитное моделирование и численный анализ процессов перемагничивания двухслойных тонкопленочных структур ферромагнетик/антиферромагнетик / Б. А. Беляев [и др.] // Изв. вузов. Физика. - 2013. - Т. 56, № 8/2. - С. 230-232. - Работа выполнена при финансовой поддержке ФЦП «Научные и научно-педагогические кадры инновационной России 2009−2013»
   Перевод заглавия: Micromagnetic simulation and numerical analysis of magnetization reversal processes in thin-film ferromagnetic/antiferromagnetic bilayer
Кл.слова (ненормированные):
микромагнитное моделирование -- ферромагнетик/антиферромагнетик -- петля гистерезиса -- обменное смещение -- коэрцитивная сила -- micromagnetic simulation -- coercivity -- ferromagnetic/antiferromagnetic -- hysteresis loop -- exchange bias
Аннотация: На основе численного микромагнитного моделирования проведено исследование процессов перемагничивания двухслойных тонкопленочных структур ферромагнетик/антиферромагнетик. Сделан анализ влияния параметров структуры на величину поля обменного сдвига и коэрцитивной силы. Результаты расчета сравниваются с экспериментальными и теоретическими данными.
On the basis of the numerical micromagnetic simulation the study of magnetization reversal processes in thin-film ferromagnetic/antiferromagnetic bilayers was performed. The analysis of influence of parameters of the structure on exchange bias field and coercive force was carried out. Calculation results are compared with experimental and theoretical data.

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

Доп.точки доступа:
Изотов, Андрей Викторович; Izotov, A.V.; Беляев, Борис Афанасьевич; Belyaev, B. A.; Соловьев, Платон Николаевич; Волошин, Александр Сергеевич; Voloshin, A. S.
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Thickness dependences of coercivity in three layer films obtained by chemical deposition / A. V. Chzhan [et al.] // J. Phys. Conf. Ser. - 2019. - Vol. 1389, Is. 1. - Ст. 012118, DOI 10.1088/1742-6596/1389/1/012118. - Cited References: 14 . - ISSN 1742-6588. - ISSN 1742-6596
Аннотация: The change of the coercivity Hc of three-layer films obtained by chemical deposition depending on the thickness of the nonmagnetic interlayers and magnetic layers are presented. Structures with magnetically identical soft layers, as well as with significantly different HC values were investigated. It was established that in both cases thecoercivity decreases with the interlayer thickness increasing by an exponential law. It is consistent with a change in the displacement field of the hysteresis loop. The observed changes in the parameters of the hysteresis loop are associated with the roughness of the interfaces.

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Держатели документа:
Siberian Federal University, 660041 Krasnoyarsk, avenue Svobodny 79 Russian Federation
Krasnoyarsk State Agrarian University, 660049 Krasnoyarsk, avenue Mira 90, Russian Federation
Kirensky Institute of Physics FIC KNC SB of the RAS, 660036 Krasnoyarsk, Akademgorodok 50, building number 38, Russian Federation

Доп.точки доступа:
Chzhan, A. V.; Podorozhnyak, S. A.; Shahov, A. N.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Patrin, G. S.; Патрин, Геннадий Семёнович; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
}
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    The manifestations of the two-dimensional magnetic correlations in the nanocrystalline ribbons Fe64CO21B15 / R. S. Iskhakov [et al.] // J. Magn. Magn. Mater. - 2015. - Vol. 374. - P. 423-426, DOI 10.1016/j.jmmm.2014.08.078. - Cited References: 42 . - ISSN 0304-8853. - ISSN 1873-4766
   Перевод заглавия: Проявления двумерных магнитных корреляций в нанокристаллических лентах Fe64Co21B15

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
GRAIN-SIZE DEPENDENCE
   RANDOM ANISOTROPY
   AMORPHOUS-ALLOYS
   COERCIVE FORCE
   FERROMAGNETS
   FILMS
   SATURATION
   Fe
   MICROSTRUCTURE
   EVOLUTION
Кл.слова (ненормированные):
Magnetic correlations -- Nanoclystalline alloys -- Random magnetic anisotropy -- Coercivity
Аннотация: We report and discuss the grain size dependence of the coercivity and approach magnetization to saturation in the FeCoB ribbons. Instead of expected three-dimensional magnetic correlations for 20 mu m thick ribbon with grain size about 10 nm, the observed behavior could be attributed to the two-dimensional stochastic magnetic domains and two dimensional magnetization ripple. (C) 2014 Elsevier B.V. All rights reserved.

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Держатели документа:
RAS, Kirensky Inst Phys, SB, Krasnoyarsk, Russia
Irkutsk State Univ, Irkutsk 664003, Russia
Siberian State Technol Univ, Krasnoyarsk, Russia

Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Balaev, A. D.; Балаев, Александр Дмитриевич; Gavriliuk, A. A.; Гаврилюк, Алексей Александрович
}
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    The exchange interaction effects on magnetic properties of the nanostructured CoPt particles / S. V. Komogortsev [et al.] // J. Magn. Magn. Mater. - 2016. - Vol. 401. - P. 236-241, DOI 10.1016/j.jmmm.2015.10.041. - Cited References: 55. - The work has been partially supported by RFBR Grants 15-08-06673, 14-03-00411, 14-03-00129, 15-42-0417115 and it is partly performed in Siberian Federal University within the state contract of the Russian Federation Ministry of Education and Science for 2014-2016 (project number 1792) . - ISSN 0304-8853
   Перевод заглавия: Влияния обменного взаимодействия на магнитные свойства наноструктурированных частиц CoPt

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
CLUSTER BEAM DEPOSITION
   BULK MAGNETS
   NANOCRYSTALLINE FERROMAGNETS
   REMANENCE ENHANCEMENT
   THIN-FILMS
   COERCIVITY
   MICROSTRUCTURE
   NANOPARTICLES
   IRON
   SYSTEM
Аннотация: Various manifestations of the exchange interaction effects in magnetization curves of the CoPt nanostructured particles are demonstrated and discussed. The inter-grain exchange constant A in the sponge-like agglomerates of crystallites is estimated as A=(7±1) pJ/m from the approach magnetization to saturation curves that is in good agreement with A=(6.6±0.5) pJ/m obtained from Bloch T 3/2 law. The fractal dimensionality of the exchange coupled crystallite system in the porous media of the disordered CoPt alloy d=(2.60±0.18) was estimated from the approach magnetization to saturation curve. Coercive force decreases with temperature as Hc~T 3/2 which is assumed to be a consequence of the magnetic anisotropy energy reduction due to the thermal spin wave excitations in the investigated CoPt particles. © 2015 Elsevier B.V. All rightsreserved.
Демонстрируются и обсуждаются различные проявления эффектов обменного взаимодействия в кривых намагниченности наноструктуированных частиц CoPt. Межзеренная обменная константа А в агломератах губчатой структуры кристаллитов оценивается как /A/=(7±1) pJ/m из кривых приближения намагниченности к насыщению, это значение находится в хорошем согласии с /A/=(6.6±0.5) pJ/m, полученным из закона /T/. /2 Блоха. Размерность фрактала обменно-соединенных кристаллических систем в пористой среды неупорядоченного сплава CoPt /d/=(2.60±0.18) оценивалась из кривых приближения намагниченности к насыщению. Коэрцитивная сила уменьшается с температурой по закону /H_c /~/T/. /2 , который, как предполагается, есть следствие уменьшения энергии магнитной анизотропии из-за теплового возбуждения спиновых волн в изучаемых частицах CoPt.

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Держатели документа:
Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Nikolaev Institute of Inorganic Chemistry, SB RAS, Novosibirsk, Russian Federation
Novosibirsk State University, Novosibirsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Zimin, A. A.; Зимин, А. А.; Filatov, E. Y.; Korenev, S. V.; Shubin, Yu. V.; Chizhik, N. A.; Yurkin, G. Yu.; Юркин, Глеб Юрьевич; Eremin, E. V.; Еремин, Евгений Владимирович
}
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The Coercivity and Interlayer Exchange in Three-Layer Films Prepared by Chemical Deposition / A. V. Chzhan, G. S. Patrin, S. Ya. Kiparisov, V. A. Seredkin // Moscow Int. Symp. on Magnet. (MISM-2011) : Book of abstracts. - 2011. - Ст. 22PO-I-51. - P. 150

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Держатели документа:
Лаборатория магнитодинамики Института физики им. Л.В. Киренского СО РАН
Kirenskii Institute of Physics, SB RAS, Krasnoyarsk 660036, Russia
Kirenskii Institute of Physics, SB RAS, Krasnoyarsk 660036, Russia
Kirenskii Institute of Physics, SB RAS, Krasnoyarsk 660036, Russia
Сибирский федеральный университет
Siberian Federal University, Krasnoyarsk 660041, Russia
Siberian Federal University, Krasnoyarsk 660041, Russia
Siberian Federal University, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Chzhan, A. V.; Чжан, Анатолий Владимирович; Patrin, G. S.; Патрин, Геннадий Семёнович; Kiparisov, S. Ya.; Кипарисов, Семен Яковлевич; Seredkin, V. A.; Середкин, Виталий Александрович; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)
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Temperature-dependent magnetization reversal in exchange bias NiFe/IrMn/NiFe structures / C. Gritsenko [et al.] // J. Magn. Magn. Mater. - 2019. - Vol. 482. - P. 370-375, DOI 10.1016/j.jmmm.2019.03.044. - Cited References: 55. - Ch. G. and M. G. acknowledge financial support by the Russian Foundation for Basic Research (RFBR grant. 17-32-50170). Ch. G. acknowledges the 5 top 100 Russian Academic Excellence Project at the Immanuel Kant Baltic Federal University. O.A.T. acknowledges support by the Grants-in-Aid for Scientific Research (Grant Nos. 17 K05511 and 17H05173) from MEXT, Japan, by the grant of the Center for Science and Innovation in Spintronics (Core Research Cluster), Tohoku University, by JSPS and RFBR under the Japan-Russian Research Cooperative Program. V.R. acknowledges the Ministry of Education and Science of the Russian Federation in the framework of government assignment 3.9002.2017/6.7. Electron microscopy examination was carried out at the Center for Collective Use of the Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences. We also thank Montserrat Rivas for helpful discussions. . - ISSN 0304-8853. - ISSN 1873-4766

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
COERCIVITY
   FILM
   ROUGHNESS
   THICKNESS
   HEADS
   IRMN
Кл.слова (ненормированные):
Magnetization reversal -- Exchange bias -- Permalloy
Аннотация: We demonstrate magnetization reversal features in NiFe/IrMn/NiFe thin-film structures with 40% and 75% relative content of Ni in Permalloy in the temperature range from 80 K to 300 K. The magnetization reversal sequence of the two ferromagnetic layers is found to depend on the type of NiFe alloy. In the samples with 75% relative content of Ni, the bottom ferromagnetic layer reverses prior to the top one. On the contrary, in the samples with 40% of Ni, the top ferromagnetic layer reverses prior to the bottom one. These tendencies of magnetization reversal are preserved in the entire range of temperatures. These distinctions can be explained by the morphological and structural differences of interfaces in the samples based on two types of Permalloy.

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Держатели документа:
Immanuel Kant Baltic Fed Univ, A Nevskogo 14, Kaliningrad 236041, Russia.
Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, Leninskie Gory 1, Moscow 119991, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Akad Gorodok 50-38, Krasnoyarsk 660036, Russia.
Natl Univ Sci & Technol MISiS, Leninsky Prospect 4, Moscow 119049, Russia.
Lomonosov Moscow State Univ, Fac Phys, Leninskie Gory 1-2, Moscow 119991, Russia.
Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia.
Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan.
Tohoku Univ, Ctr Sci & Innovat Spintron, Sendai, Miyagi 9808577, Japan.

Доп.точки доступа:
Gritsenko, C.h.; Dzhun, I.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Gorshenkov, M.; Babaytsev, G.; Chechenin, N.; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Tretiakov, Oleg A.; Rodionova, V.; Russian Foundation for Basic Research (RFBR) [17-32-50170]; MEXT, Japan [17 K05511, 17H05173]; Center for Science and Innovation in Spintronics (Core Research Cluster), Tohoku University; JSPS; RFBR under the Japan-Russian Research Cooperative Program; Ministry of Education and Science of the Russian Federation [3.9002.2017/6.7]
}
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Synthesis and magnetic properties of the core-shell Fe3O4/CoFe2O4 nanoparticles / D. A. Balaev, S. V. Semenov, A. A. Dubrovskii [et al.] // Phys. Solid State. - 2020. - Vol. 62, Is. 2. - P. 285-290, DOI 10.1134/S1063783420020043. - Cited References: 37. - This study was supported by the Russian Science Foundation, project no. 17-12-01111. . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
MOSSBAUER
ENSEMBLE
Кл.слова (ненормированные):
oxide nanoparticles -- core-shell structure -- coercivity
Аннотация: The Fe3O4/CoFe2O4 nanoparticles with a core-shell structure with an average size of 5 nm have been obtained by codeposition from the iron and cobalt chloride solutions. An analysis of the magnetic properties of the obtained system and their comparison with the data for single-phase Fe3O4 (4 nm) and CoFe2O4 (6 nm) nanoparticles has led to the conclusion about a noticeable interaction between the soft magnetic (Fe3O4) and hard magnetic (CoFe2O4) phases forming the core and shell of hybrid particles.

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Публикация на русском языке Синтез и магнитные свойства наночастиц Fe3O4/CoFe2O4 со структурой ядро/оболочка [Текст] / Д. А. Балаев, С. В. Семенов, А. А. Дубровский [и др.] // Физ. тверд. тела. - 2020. - Т. 62 Вып. 2. - С. 235-240

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Novosibirsk 630090, Russia.

Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Semenov, S. V.; Семёнов, Сергей Васильевич; Dubrovskii, A. A.; Дубровский, Андрей Александрович; Krasikov, A. A.; Красиков, Александр Александрович; Popkov, S. I.; Попков, Сергей Иванович; Yakushkin, S. S.; Kirillov, V. L.; Mart'yanov, O. N.; Russian Science FoundationRussian Science Foundation (RSF) [17-12-01111]
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Study of the high-coercivity material based on ε-Fe2O3 nanoparticles in the silica gel matrix / D. A. Balaev [et al.] // Tech. Phys. Lett. - 2016. - Vol. 42, Is. 4. - P. 347-350, DOI 10.1134/S1063785016040039. - Cited References: 17. - This study was supported by the Federal Agency for Scientific Organizations of Russia (base budget financing no. V.44.1.15), the Scientific and Educational Center of Energy-Efficient Catalysis at the Novosibirsk State University, and the Russian Foundation for Basic Research (project no. 15-32-50919). . - ISSN 1063-7850

РУБ Physics, Applied
Рубрики:
Phase
   Field
   State
   Oxide
   Iron
Аннотация: We report the results of investigations of ε-Fe2O3 magnetic nanoparticles obtained by incipient wetness impregnation of silica gel. It was established that the obtained samples with an iron content of 12‒16% mass % containing ε-Fe2O3 nanoparticles with an average size of 10 nm on the silica gel surface exhibit a room-temperature coercivity of about 10 kOe. Along with fabrication simplicity, this fact makes the prepared samples promising for application as a magnetically hard material. © 2016, Pleiades Publishing, Ltd

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Публикация на русском языке Исследование высококоэрцитивного материала на основе наночастиц ε-Fe2O3 в матрице силикагеля [Текст] / Д. А. Балаев [и др.] // Письма в Журн. технич. физ. : Санкт-Петербургская издательско-книготорговая фирма "Наука", 2016. - Т. 42 Вып. 7. - С. 23-30

Держатели документа:
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Boreskov Institute of Catalysis, Russian Academy of Sciences, Siberian Branch, Novosibirsk, Russian Federation
Novosibirsk State University, Novosibirsk, Russian Federation
International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw, Poland

Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Yakushkin, S. S.; Dubrovskii, A. A.; Дубровский, Андрей Александрович; Bukhtiyarova, G. A.; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Martyanov, O. N.
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Solid-phase synthesis of L1(0)-FePd(001) epitaxial thin films: Structural transformations and magnetic anisotropy / V. G. Myagkov [et al.] // JETP Letters. - 2010. - Vol. 91, Is. 9. - P. 481-485, DOI 10.1134/S0021364010090109. - Cited References: 24. - This work was supported by the Ministry of Education and Science of the Russian Federation (project no. 2.1.1/4399, program "Development of the Scientific Potential of Higher Education (2009-2010)"). . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
NANOPARTICLES
COERCIVITY
TRANSITION
Аннотация: The solid-phase synthesis of the L1(0)-FePd magnetically hard phase in Fe(001)/Pd(001) epitaxial films has been experimentally investigated. The formation of three types of L1(0)-FePd ordered crystallites whose c axes coincide with the aOE (c) 100 directions of the MgO(001) substrate begins at the Fe/Pd interface at a temperature of 450A degrees C. After an increase in the annealing temperature to 500A degrees C, structural rearrangement occurs and gives rise to the predominant growth of L1(0)-FePd crystallites with the c axis perpendicular to the film plane. After 10-h annealing, the fraction of such crystallites becomes dominant, leading to large perpendicular anisotropy. The first magnetocrystalline-anisotropy constant of the L1(0)-FePd phase has been determined and the second constant has been estimated. It has been shown that magnetic anisotropy in the L1(0)-FePd(001) basal plane cannot be described by the biaxial anisotropy of the tetragonal crystal. The annealing above 500A degrees C results in the evolution of L1(0)-FePd to a disordered cubic phase.

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Держатели документа:
[Myagkov, V. G.
Bykova, L. E.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Solov'ev, L. A.
Bondarenko, G. N.] Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk 660036, Russia
[Zhigalov, V. S.] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
ИХХТ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation

Доп.точки доступа:
Myagkov, V. G.; Мягков, Виктор Григорьевич; Zhigalov, V. S.; Жигалов, Виктор Степанович; Bykova, L. E.; Быкова, Людмила Евгеньевна; Solov'ev, L. A.; Соловьев, Леонид Александрович; Bondarenko, G. N.; Бондаренко, Галина Николаевна
}
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10.

Remagnetization of ε-Fe2O3 nanoparticles in a pulse field / A. A. Krasikov [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. P9.4. - P. 390. - References: 4 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
ε-Fe2O3 -- nanoparticles -- coercivity -- remagnetization -- superparamagnetic relaxation

Доп.точки доступа:
Krasikov, A. A.; Красиков, Александр Александрович; Balaev, D. A.; Балаев, Дмитрий Александрович; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Popkov, S. I.; Попков, Сергей Иванович; Balaev, A. D.; Балаев, Александр Дмитриевич; Yakushkin, S. S.; Якушкин С. С.; Bukhtiyarova, G. A.; Бухтиярова Г. А.; Martyanov, O. N.; Мартьянов О.Н.; Poperechny, I. S.; Поперечный И. С.; Raikher, Yu.L.; 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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11.

Regarding the coercivity in three-layer ferromagnetic films with non-magnetic interlayers / A. V. Chzhan [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. P10.12. - P. 480. - References: 2 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
three-layer ferromagnetic films -- coercivity

Доп.точки доступа:
Chzhan, A.V.; Чжан, Анатолий Владимирович; Sakash, I. Yu.; Сакаш И. Ю.; Chichikova, T. O.; Чичикова Татьяна Олеговна; Patrin, G. S.; Патрин, Геннадий Семёнович; 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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12.

Bolyachkin, A. S.
Power-law behavior of coercivity in nanocrystalline magnetic alloys with grain-size distribution / A. S. Bolyachkin, S. V. Komogortsev // Scripta Mater. - 2018. - Vol. 152. - P. 55-58, DOI 10.1016/j.scriptamat.2018.04.008. - Cited References: 36. - This work was supported by RFBR (research project No. 17-302-50015), by MES of RF (contract No. 3.6121.2017/8.9) and by Act 211 Government of RF (agreement 02.A03.21.0006). . - ISSN 1359-6462
Кл.слова (ненормированные):
Soft magnetic materials -- Random magnetic anisotropy model -- Exchange interaction
Аннотация: Coercivity of nanocrystalline magnetic alloys depends on the grain size D according to a power law Hc ∝ Dn with n from 2 to 6. The law Hc ∝ D6 is derived based on the random magnetic anisotropy model and is clearly manifested in experimental studies of some Finemet type alloys. In this letter using computer modeling it is demonstrated that a power-law behavior with the exponent n less than 6 can be due to a grain-size distribution. An increase of grain size variance results in a decrease of the exponent from 6 to the value of about 3.

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Держатели документа:
Ural Federal University, Yekaterinburg, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович
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13.

Bolyachkin, A. S.
Power-law behavior of coercivity in nanocrystalline alloys with grain-size distribution / A. S. Bolyachkin, S. V. Komogortsev // Euro-asian symposium "Trends in magnetism" (EASTMAG-2019) : Book of abstracts / чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст. J.P3. - P. 195-196. - Cited References: 4 . - ISBN 978-5-9500855-7-4

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Ural Federal University n.a. the first President of Russia B.N. Yeltsin

Доп.точки доступа:
Ovchinnikov, S. G. \чл. конс. ком.\; Овчинников, Сергей Геннадьевич; Volkov, N. V. \чл. конс. ком.\; Волков, Никита Валентинович; Dzebisashvili, D. M. \чл. прогр. ком.\; Дзебисашвили, Дмитрий Михайлович; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Российская академия наук; Уральское отделение РАН; Институт физики металлов им. М. Н. Михеева Уральского отделения РАН; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Российский фонд фундаментальных исследований; Euro-Asian Symposium "Trends in MAGnetism"(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(7 ; 2019 ; Sept. ; 8-13 ; Ekaterinburg)
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14.

Metal-organic magnets with large coercivity and ordering temperatures up to 242°C / P. Perlepe, I. Oyarzabal, A. Mailman [et al.] // Science. - 2020. - Vol. 370, Is. 6516. - P. 587-591, DOI 10.1126/science.abb3861. - Cited References: 42. - This work was supported by the University of Bordeaux, the Region Nouvelle Aquitaine, Quantum Matter Bordeaux, and the Centre National de la Recherche Scientifique (CNRS). I.O. and R.C. are grateful to the Basque Government for I.O.'s postdoctoral grant. K.S.P. thanks the VILLUM FONDEN for a Villum Young Investigator grant (15374). A.M. thanks JYU and the Academy of Finland (project 289172) for support . - ISSN 0036-8075. - ISSN 1095-9203

РУБ Multidisciplinary Sciences
Рубрики:
ROOM-TEMPERATURE
   CHROMIUM
   FERROMAGNETISM
   DIFFRACTION
   COMPLEXES
Аннотация: Magnets derived from inorganic materials (e.g., oxides, rare-earth–based, and intermetallic compounds) are key components of modern technological applications. Despite considerable success in a broad range of applications, these inorganic magnets suffer several drawbacks, including energetically expensive fabrication, limited availability of certain constituent elements, high density, and poor scope for chemical tunability. A promising design strategy for next-generation magnets relies on the versatile coordination chemistry of abundant metal ions and inexpensive organic ligands. Following this approach, we report the general, simple, and efficient synthesis of lightweight, molecule-based magnets by postsynthetic reduction of preassembled coordination networks that incorporate chromium metal ions and pyrazine building blocks. The resulting metal-organic ferrimagnets feature critical temperatures up to 242°C and a 7500-oersted room-temperature coercivity.

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Держатели документа:
Univ Bordeaux, CNRS, Ctr Rech Paul Pascal, UMR 5031, F-33600 Pessac, France.
Univ Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France.
Univ Basque Country, UPV EHU, Chem Fac, Donostia San Sebastian 20018, Spain.
Univ Jyvaskyla, Dept Chem, FI-40014 Jyvaskyla, Finland.
ESRF European Synchrotron, CS, F-38043 Grenoble 9, France.
Swiss Norwegian Beamlines European Synchrotron Ra, F-38000 Grenoble, France.
Univ Bordeaux, CNRS, Lab Ondes & Matiere Aquitaine, F-33400 Talence, France.
Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England.
Univ Bordeaux, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France.
Tech Univ Denmark, Dept Chem, DK-2800 Lyngby, Denmark.
Kirensky Inst Phys, Fed Res Ctr KSC SB RAS, Krasnoyarsk 660036, Russia.
PSL Univ, Inst Mat Poreux Paris, UMR CNRS 8004, Ecole Normale Super, F-75005 Paris, France.

Доп.точки доступа:
Perlepe, Panagiota; Oyarzabal, Itziar; Mailman, Aaron; Yquel, Morgane; Platunov, M. S.; Платунов, Михаил Сергеевич; Dovgaliuk, Iurii; Rouzieres, Mathieu; Negrier, Philippe; Mondieig, Denise; Suturina, Elizaveta A.; Dourges, Marie-Anne; Bonhommeau, Sebastien; Musgrave, Rebecca A.; Pedersen, Kasper S.; Chernyshov, Dmitry; Wilhelm, Fabrice; Rogalev, Andrei; Mathoniere, Corine; Clerac, Rodolphe; University of Bordeaux; Region Nouvelle AquitaineRegion Nouvelle-Aquitaine; Quantum Matter Bordeaux; Centre National de la Recherche Scientifique (CNRS)Centre National de la Recherche Scientifique (CNRS); Basque GovernmentBasque Government; VILLUM FONDEN [15374]; Academy of FinlandAcademy of Finland [289172]
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15.

Magnetic properties of three-dimensional metal rods with composition gradients produced by electroless deposition / E. A. Denisova, L. A. Chekanova, S. V. Komogortsev [et al.] // IEEE Magn. Lett. - 2022. - Vol. 13. - Ст. 6103405, DOI 10.1109/LMAG.2022.3163015. - Cited References: 30. - This work was supported in part by the Russian Foundation for Basic Research (RFBR), Krasnoyarsk Territory and in part by the Krasnoyarsk Regional Fund of Science under Grant 20-43-240003. The authors thank the Center of Collective Use of the Federal Research Center Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences for the equipment. Sergey V. Komogortsev thank the RFBR, Krasnoyarsk Region and the Krasnoyarsk Regional Science Foundation (Project 20-42-240001) for the support in the contribution of numerical simulation. The authors also thank V. S. Plotnikov and V. V. Tkachev for electron microscopy images . - ISSN 1949-307X
Кл.слова (ненормированные):
nanomagnetics -- rods with gradients of composition -- electroless deposition -- coercivity -- magnetic anisotropy
Аннотация: A comparative study of the magnetic properties of arrays of Co–Ni rods with different composition gradients (smooth or step-like) along the rod axes was carried out. Ordered arrays of Co–Ni nanorods with diameters up to 400 nm and 8 µm length were prepared by electroless plating into a porous nuclear-track-etched polycarbonate membrane. The gradient in Co and Ni composition was confirmed by energy-dispersive X-ray analysis. The variation of Co–Ni contents along the long axis of the rods correlates with the gradient of the magnetization within the rod. Magnetization reversal was studied by analyzing the angular dependence of coercivity and using micromagnetic simulations. For both types of gradient rods, reversal occurs by curling. The local magnetic anisotropy field of rods with a step-type gradient is significantly higher than that for rods with a smooth gradient.

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Держатели документа:
Federal Research Center Ksc Sb Ras, Kirensky Institute Of Physics, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Reshetnev Siberian State University Of Science And Technology, Krasnoyarsk, 660037, Russian Federation
Federal Research Center Ksc Sb Ras, Krasnoyarsk Scientific Center, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Chekanova, L. A.; Чеканова, Лидия Александровна; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Satsuk, S. A.; Сацук, Светлана Александровна; Nemtsev, I. V.; Немцев, Иван Васильевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Semenov, S. V.; Семёнов, Сергей Васильевич
}
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16.

Velikanov, D. A.
Magnetic properties of Ba2Cu3O4Cl2 / D. A. Velikanov, K. S. Rabinovich, L. L. Samoilenko // VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016) : abstracts / ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk : KIP RAS SB, 2016. - Ст. P2.16. - P. 158. - References: 4 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
layered cuprate -- magnetic moment -- coercivity -- remanence -- weak ferromagnet

Доп.точки доступа:
Rabinovich, K. S.; Рабинович, К. С.; Samoilenko, L. L.; Самойленко, Л. Л.; Великанов, Дмитрий Анатольевич; 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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17.

Frolov, G. I.
Magnetic properties of 3d-metal nanocrystalline films / G. I. Frolov // Tech. Phys. - 2004. - Vol. 49, Is. 7. - P. 909-915, DOI 10.1134/1.1778867. - Cited References: 34 . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
ULTRAFINE GRAIN-STRUCTURE
   SIZE DEPENDENCE
   FERROMAGNETS
   COERCIVITY
   SYSTEMS
   DENSITY
Аннотация: The problem of designing high-resistivity soft magnetic materials based on 3d-metal nanocrystalline films is discussed. To increase the electrical resistivity, nanogranular composites are proposed; they consist of superparamagnetic particles embedded into a dielectric matrix. To obtain the required soft magnetic properties in such composites, it is necessary to realize magnetic ordering due to the effects of magnetic interaction between nanoparticles. As an example, magnetic films that exhibit good high-frequency properties in a range up to several hundreds of megahertz are presented. (C) 2004 MAIK "Nauka / Interperiodica".

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

Доп.точки доступа:
Фролов, Георгий Иванович
}
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18.

    Bolyachkin, A. S.
    Magnetic Correlations and Coercivity in Nanocrystalline Alloys With Grain-Size Distribution. / A. Bolyachkin, E. Dengina and S. Komogortsev // 65th Annual conference on мagnetism and мagnetic мaterials (MMM-2020) : abstract book. - 2020. - Ст. R5-01. - P. 564. - Cited References: 1
   Перевод заглавия: Высоко-индукционные пленки FeCo: Зеленый синтез и магнитные свойства

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Доп.точки доступа:
Dengina, E.; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Annual conference on мagnetism and мagnetic мaterials(65 ; 2020 ; 2-6 Nov. ; Virtual Conference)
}
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19.

Magnetic anisotropy of nanostructured Fe-Ni-C coating produced by electroless deposition / E. A. Denisova, L. A. Chekanova, S. V. Komogortsev [et al.] // Phys. Solid State. - 2023. - Vol. 65, Is. 6. - P. 851-855, DOI 10.21883/PSS.2023.06.56090.14H. - Cited References: 20. - The study was done with financial support from the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory and the Krasnoyarsk Regional Fund of Science within scientific project No. 20-43-240003 . - ISSN 1063-7834. - ISSN 1090-6460
Кл.слова (ненормированные):
3d-metal alloys -- the approach to saturation magnetization law -- coercivity
Аннотация: The structural and magnetic properties of nanostructured Fe100–xNix-C (0 ˂ x ˂ 100) coatings produced by electroless plating with different carbohydrates as reducing agents have been investigated. The phase-structural state of the films was studied by diffraction and electron microscopy. The Ni concentration ranges of FCC and BCC phases existence in electroless deposited films were determined. The surface morphology, saturation magnetization, local magnetic anisotropy field and coercivities of films are dependent on the iron content and type of reducing agent. The correlation between coercivity Hc and the anisotropy field of the magnetic stochastic domain which were established by correlation magnetometry suggests that the magnitude of Hc is mainly determined by this anisotropy.

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Публикация на русском языке Магнитная анизотропия наноструктурированных покрытий Fe-Ni-C, полученных методом химического осаждения [Текст] / Е. А. Денисова, Л. А. Чеканова, C. В. Комогорцев [и др.]. - 6 с. // Физ. твердого тела. - 2023. - Т. 65 Вып. 6. - С. 888-893

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia
Siberian State University of Science and Technology, Krasnoyarsk, Russia
Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Chekanova, L. A.; Чеканова, Лидия Александровна; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Li, O. A; Sukhachev, A. L.; Сухачев, Александр Леонидович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Nemtsev, I. V.; Немцев, Иван Васильевич; Nanophysics and Nanoelectronics, International Symposium(27 ; 13-16 March 2023 ; Nizhny Novgorod, Russia)
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20.

    Magnetic and magnetoresistance properties of (Co/Ge)n films / G. S. Patrin [et al.] // Solid State Phenom. : Selected, peer reviewed papers. - 2015. - Vol. 233-234: Achievements in Magnetism. - P. 423-426, DOI 10.4028/www.scientific.net/SSP.233-234.423 . - ISSN 1662-9779. - ISSN 978-3-038
   Перевод заглавия: Магнитные и магниторезистивные свойства (Co/Ge)_n пленок
Рубрики:
Achievements in magnetism
   Spintronics and magnetotransport
Кл.слова (ненормированные):
bilayer structure magnetization -- cobalt -- coercivity -- ferromagnetic metal/semiconductor films -- germanium interface -- magnetoresistance -- schottky barrier
Аннотация: The magnetic and electrical properties of (Co/Ge)nfilms are experimentally studied. It is established that at the Co/Ge interfacean intermediate magnetic layer forms. Twophases of cobalt, one is a face-centered cubic phase and the other ispresumably a Co–Ge alloy with a weakly ferromagnetic order, have been found toexist. A “dead” layer no more than 2 nm in thickness is formed at the interface.This layer affects the magnetic behavior andmagnetoresistive effect in the investigated structures.

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Доп.точки доступа:
Perov, N. \ed.\; Semisalova, A. \ed.\; Patrin, G. S.; Патрин, Геннадий Семёнович; Turpanov, I. A.; Турпанов, Игорь Александрович; Patrin, K. G.; Патрин, Константин Геннадьевич; Marushchenko, E. A.; Марущенко, Е. А.; Kobyakov, A. V.; Кобяков, Александр Васильевич; Maltsev, V. K.; Мальцев, Вадим Константинович; Yushkov, V. I.; Юшков, Василий Иванович; Moscow International Symposium on Magnetism(6 ; 2014 ; June-July ; Moscow)
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