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    Киренский, Леонид Васильевич.
    Несквозная доменная структура в тонких пленках пермаллоя / Л. В. Киренский, Р. В. Суханова, В. Г. Пынько // Физ. металлов и металловед. - 1966. - Т. 21, вып. 2. - С. 308-310. - Библиогр.: 4 назв. - Phys. Abstr. - 1966. - Vol. 69, 24530
   Перевод заглавия: "Non-throuch" domain structure of thin permalloy films

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

Доп.точки доступа:
Суханова, Р. В.; Пынько, Виталий Григорьевич; Pyn'ko, V. G.; Kirenskii, L. V.
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Permalloy-copper-permalloy sandwiches with perpendicular anisotropy axes in the magnetic layers / V. P. Kononov [et al.] // Tech. Phys. - 1997. - Vol. 42, Is. 11. - P. 1281-1284, DOI 10.1134/1.1258907. - Cited References: 9 . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
CO/CU/CO SANDWICHES
Аннотация: Layerd FeNi-Cu-FeNi structures with a mutually perpendicular orientation of the easy axes in the FeNi layers are fabricated in ultrahigh vacuum, and the physical properties of these structures are investigated: ferromagnetic resonance, quasistatic magnetization reversal, and the Faraday rotation of the plane of polarization of a light wave. (C) 1997 American Institute of Physics. [S1063-7842(97)00811-8].

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

Доп.точки доступа:
Kononov, V. P.; Khudyakov, A. E.; Morozova, T. P.; Chernov, V. K.; Piskunov, O. N.; Zhigalov, V. S.; Жигалов, Виктор Степанович; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич; Edel'man, I. S.; Edelman, I. S.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
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Belyaev, B. A.
Anisotropy characteristics in a Permalloy film induced by a nonuniform magnetic field / B. A. Belyaev, V. P. Kononov, S. G. Ovchinnikov // Phys. Solid State. - 1998. - Vol. 40, Is. 7. - P. 1175-1177, DOI 10.1134/1.1130513. - Cited References: 3 . - ISSN 1063-7834

РУБ Physics, Condensed Matter

Аннотация: Inhomogeneities were observed for the first time in the magnetic structure of a thin Permalloy film, induced by a strongly nonuniform magnetic field applied in the plane of the substrate during fabrication of the samples. The films were obtained by vacuum deposition using a molecular-beam epitaxy system. A nonuniform field was created on the substrate using four samarium-cobalt magnets. The anisotropy of local sections of the samples was measured using a scanning-ferromagnetic-resonance spectrometer. A strong correlation was observed between the distribution of the magnitude and direction of the local magnetic anisotropy of the film and the magnetic-field distribution in the plane of the substrate. (C) 1998 American Institute of Physics.

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

Доп.точки доступа:
Kononov, V. P.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Беляев, Борис Афанасьевич
}
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Influence of the unidirectional anisotropy on magnetic noise in permalloy films [Text] / V. V. Polyakov // International Conference "Functional Materials" (ICFM-09) : book of abstracts : October 5-10, Ukraine, Crimea, Partenit. - 2009. - P113

Доп.точки доступа:
Polyakov, V.V.; "Functional Materials", International Conference(4 ; 2009 ; OCT ; Partenit, Crimea, Ukraine)
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Belyaev, B. A.
Impedance spectra of thin permalloy films with a nanoisland structure / B. A. Belyaev, N. A. Drokin // Phys. Solid State. - 2012. - Vol. 54, Is. 2. - P. 360-367, DOI 10.1134/S1063783412020084. - Cited References: 20. - This study was supported by the Russian Federal Targeted Program "Scientific and Scientific-Pedagogical Human Resources for the Innovative Russia in 2009-2013," the Siberian Branch of the Russian Academy of Sciences (Integration research project no. 5), and the Presidium of the Russian Academy of Sciences (project no. 21.1). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
CAPACITANCE
Аннотация: The behavior of the impedance spectra of island permalloy films prepared through vacuum evaporation onto optically polished glass-ceramic substrates has been investigated in the frequency range from 0.0001 to 100 MHz. A resistor-capacitor model of the films has been developed and the model parameters, for which there is a good agreement with experimental data on the frequency dependences of the real and imaginary components of the impedance, have been determined. The specific features in the behavior of the electrical and physical characteristics with variations in the thickness of the sample and the gap between the measuring electrodes have been investigated. It has been found that the relative permittivity of the films under investigation reaches values E similar to 10(7)-10(8). The structural relaxation times have been calculated.

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Публикация на русском языке Беляев, Борис Афанасьевич. Спектры импеданса тонких пермаллоевых пленок с наноостровковой структурой [Текст] / Б. А. Беляев, Н. А. Дрокин // Физ. тверд. тела : Физико-технический институт им. А.Ф.Иоффе РАН, 2012. - Т. 54 Вып. 2. - С. 340-346

Держатели документа:
[Belyaev, B. A.
Drokin, N. A.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Belyaev, B. A.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia

Доп.точки доступа:
Drokin, N. A.; Дрокин, Николай Александрович; Беляев, Борис Афанасьевич
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Magnetism and magnetoresistance in NiFe/Bi/NiFe films / K. G. Patrin [et al.] // Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. - Vol. 190. - P. 439-442, DOI 10.4028/www.scientific.net/SSP.190.439 . - ISBN 1012-0394. - ISBN 9783037854365
Кл.слова (ненормированные):
Antiferromagnetic interaction -- Bi spacer -- Hysteresis loop -- Interlayer coupling -- Magnetization -- Magnetoresistance -- Permalloy -- Trilayer films -- Antiferro-magnetic interactions -- Giant magnetoresistive -- Interlayer coupling -- Interlayer interactions -- Permalloy -- Spacer thickness -- SQUID magnetometry -- Trilayer film -- Trilayers -- Antiferromagnetism -- Bismuth -- Giant magnetoresistance -- Hysteresis loops -- Magnetic materials -- Magnetic resonance -- Magnetization -- Magnetoresistance -- Electric resistance
Аннотация: Interlayer interactions in FeNi/Bi/FeNi trilayers have been experimentally studied. Based on the data of SQUID magnetometry and magnetic resonance investigations, it is shown that the interlayer interaction is determined by a bismuth spacer thickness and temperature. The giant magnetoresistive effect in the trilayer films has been discovered. В© (2012) Trans Tech Publications.

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Доп.точки доступа:
Patrin, K. G.; Патрин, Константин Геннадьевич; Yakovchuk, V.Yu.; Яковчук, Виктор Юрьевич; Patrin, G. S.; Патрин, Геннадий Семёнович; Yarikov, S. A.; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)
}
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    Исследование магнитных свойств тонких пермаллоевых пленок, осажденных на подложки, подготовленные по методу графоэпитаксии / Б. А. Беляев [и др.] // Изв. вузов. Физика. - 2013. - Т. 56, № 8/2. - С. 227-229. - Работа выполнена при финансовой поддержке ФЦП «Научные и научно-педагогические кадры инновационной 2009−2013 гг.» и гранта РФФИ № 12-02-12008
   Перевод заглавия: Investigation of magnetic properties in thin permalloy films deposited on substrates prepared by a graphoepitaxy method
Кл.слова (ненормированные):
магнитная пленка -- графоэпитаксия -- ферромагнитный резонанс -- анизотропия -- thin magnetic film -- graphoepitaxy -- ferromagnetic resonance -- magnetic anisotropy -- saturation magnetization
Аннотация: Методом локального ФМР исследовано влияние подготовки подложек по методу графоэпитаксии на величину и направление поля одноосной магнитной анизотропии, эффективную намагниченность и ширину линии ФМР тонких пермаллоевых пленок. При подготовке подложек на их поверхность наносились царапины с периодом 5 и 20 мкм. Показано, что такая подготовка оказывает существенное влияние на вышеуказанные свойства.
An influence of preparing substrates according the graphoepitaxy method on the magnitude and direction of uniaxial magnetic anisotropy, effective magnetization and FMR linewidth is studied. The preparation of substrate consists of covering the surface by scratches of nanometer width with periods 5 and 20 micrometers. It is shown, the preparation influences on the above mentioned properties significantly.

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

Доп.точки доступа:
Беляев, Борис Афанасьевич; Belyaev, B. A.; Лексиков, Александр Александрович; Leksikov, Al. A.; Лексиков, Андрей Александрович; Leksikov, An. A.; Борисенков, Д. В.
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    Lorentz microscopy of permalloy film microdots / V. S. Prokopenko [et al.] // J. Sib. Fed. Univ. Math. Phys. - 2013. - Vol. 6, Is. 2. - P. 262-269 ; Журн. СФУ. Сер. "Математика и физика" . - ISSN 1997-1397
   Перевод заглавия: Лоренцева микроскопия пермаллоевых пленочных микропятен
Кл.слова (ненормированные):
MICRODOT -- MAGNETIC VORTEX -- BLOCH POINT -- MAGNETIC REVERSAL -- НАНОТОЧКА -- МАГНИТНЫЙ ВИХРЬ -- ТОЧКА БЛОХА -- ПЕРЕМАГНИЧИВАНИЕ
Аннотация: The results of an investigation into square permalloy ﬁlm microdots with a quasivortical magnetic structure by the method of Lorentz electron microscopy are presented. The found before mechanism of the switching of microdot chirality in homogeneous plane magnetic ﬁeld is discussed. The calculations are performed to evaluate the interaction of microdots under switching chirality.
Приводятся результаты изучения методом лоренцевой электронной микроскопии квадратных пермаллоевых плёночных микропятен с квазивихревой магнитной структурой. Обсуждается механизм обнаруженного ранее эффекта переключения киральности пятна в однородном плоскостном магнитном поле. Выполнен расчёт по оценке взаимного влияния микропятен при переключении киральности.

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Доп.точки доступа:
Prokopenko, V. S.; Kim, P. D.; Ким, Петр Дементьевич; Orlov, V. A.; Орлов, Виталий Александрович; Vasiliev, B. V.; Vovk, D.K; Zatsepilin, S. T.; Rudenko, R. Y.; Руденко, Роман Юрьевич

}
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Magnetic structures of permalloy film microspots / P. D. Kim [et al.] // Dokl. Phys. - 2015. - Vol. 60, Is. 7. - P. 279-282, DOI 10.1134/S1028335815070046. - Cited References: 6. - This work was fulfilled within the framework of interdisciplinary integration project no. 26 of the Siberian Branch, Russian Academy of Sciences, (2012-2014) and was supported by an interuniversity grant of Astaf'ev Krasnoyarsk State Pedagogical University. . - ISSN 1028. - ISSN 1562-6903. -

РУБ Mechanics + Physics, Multidisciplinary

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Публикация на русском языке Магнитные структуры пермаллоевых плёночных микропятен [Текст] / П. Д. Ким [и др.] // Докл. акад. наук : Наука, 2015. - Т. 463 № 1. - С. 28–31

Держатели документа:
Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Krasnoyarsk State Pedagogical University named after Astaf’ev, Krasnoyarsk, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Kim, P. D.; Ким, Пётр Дементьевич; Prokopenko, V. S.; Orlov, V. A.; Орлов, Виталий Александрович; Rudenko, R. Y.; Руденко, Роман Юрьевич; Rudenko, T. V.; Руденко, Т. В.; Vasilyev, B. V.; Васильев, Борис Викторович; Zjivaev, V. P.; Живаев, Василий Петрович; Kim, T. A.; Ким, Татьяна Алексеевна
}
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10.

Belyaev, B. A.
Competing magnetic anisotropies in obliquely deposited thin permalloy film / B. A. Belyaev, A. V. Izotov, P. N. Solovev // Physica B. - 2016. - Vol. 481. - P. 86-90, DOI 10.1016/j.physb.2015.10.036. - Cited References: 31. - This study was supported by the Ministry of Education and Science of the Russian Federation, task no. 3.528.2014K . - ISSN 0921-4526

РУБ Physics, Condensed Matter
Рубрики:
FERROMAGNETIC-RESONANCE
MICROMAGNETIC CALCULATION
Кл.слова (ненормированные):
Thin film -- Magnetic anisotropy -- Oblique deposition -- Ferromagnetic resonance -- Micromagnetic simulation
Аннотация: Distribution of the magnetic anisotropy in thin film prepared by thermal vacuum oblique deposition of permalloy with small off-normal angle of incident in the presence of an external magnetic field has been studied by ferromagnetic resonance technique. On local area of the sample, a mutual compensation of near orthogonal in-plane uniaxial magnetic anisotropies induced by oblique deposition and by applied magnetic field has been found. Moreover, in addition to the uniaxial (twofold) magnetic anisotropy, fourfold and sixfold magnetic anisotropies have been observed in the sample. To explain the obtained high-order anisotropies, we assumed that the sample has exchange coupled adjacent regions or phases with different parameters of magnetic anisotropy. The results of the micromagnetic analysis of a two-layer model of the sample confirm the hypothesis. © 2015 Elsevier B.V. All rights reserved.

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Держатели документа:
Siberian Federal University, 79, pr. Svobodnyi, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, 50/38, Akademgorodok, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, 31, pr. Imeni Gazety Krasnoyarskii Rabochii, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Izotov, A. V.; Изотов, Андрей Викторович; Solovev, P. N.; Беляев, Борис Афанасьевич
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11.

    Соловьев, Платон Николаевич.
    Измерение магнитных характеристик тонких пленок пермаллоя методом ферромагнитного резонанса на различных частотах / П. Н. Соловьев, Б. А. Беляев, Г. В. Скоморохов // Магнитные материалы. Новые технологии : тез. докл. VIII Байкал. междунар. конф. BICMM-2018 / чл. прогр. ком. R. S. Iskhakov [et al.]. - Иркутск, 2018. - С. 185 . - ISBN 978-5-00133-051-6
   Перевод заглавия: Measurements of thin permalloy films magnetic characteristics using ferromagnetic resonance on various frequencies

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

Доп.точки доступа:
Iskhakov, R. S. \чл. прогр. ком.\; Исхаков, Рауф Садыкович; Ovchinnikov, S. G. \чл. прогр. ком.\; Овчинников, Сергей Геннадьевич; Aplesnin, S. S. \чл. прогр. ком.\; Аплеснин, Сергей Степанович; Balaev, D. A. \чл. прогр. ком.\; Балаев, Дмитрий Александрович; Беляев, Борис Афанасьевич; Belyaev, B. A.; Скоморохов, Георгий Витальевич; Skomorokhov, G. V.; Solovev, P. N.; Байкальская международная конференция "Магнитные материалы. Новые технологии"(8 ; 2018 ; авг. ; 24-28 ; Иркутск); "Магнитные материалы. Новые технологии", Байкальская международная конференция(8 ; 2018 ; авг. ; 24-28 ; Иркутск); "Magnetic materials. New tecnologies", Baikal International Conference(8 ; 2018 ; Aug. 24-28 ; Irkutsk); Иркутский государственный университет
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12.

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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13.

    Micromagnetic simulation of domain structure in thin permalloy films with in-plane and perpendicular anisotropy / P. N. Solovev, A. V. Izotov, B. A. Belyaev, N. M. Boev // Physica B. - 2020. - Vol. 604. - Ст. 412699, DOI 10.1016/j.physb.2020.412699. - Cited References: 31. - This work was supported by the Ministry of Science and Higher Education of the Russian Federation , agreement number 075-11-2019-054 dated 22.11.2019 . - ISSN 0921-4526
   Перевод заглавия: Микромагнитное моделирование доменной структуры тонких пермаллоевых пленок с одноосной планарной и перпендикулярной анизотропией
Кл.слова (ненормированные):
Micromagnetic simulation -- Thin magnetic film -- Magnetic anisotropy -- Stripe domains -- Hysteresis loop -- Saturation field
Аннотация: We investigate the domain structure formation and magnetization processes in thin permalloy films with in-plane and perpendicular magnetic anisotropy by using micromagnetic simulation. We show that the films of thicknesses less than a critical value Lcr are in the monodomain state, and their magnetization processes are specified by the in-plane anisotropy. Above the critical thickness Lcr, the perpendicular anisotropy dominates, leading to the formation of the stripe domain structure that significantly complicates the magnetization reversal. The values of the critical thickness, parameters of the domain structure, and the saturation field obtained from the micromagnetic simulations are compared with the corresponding values calculated using analytical expressions derived by Murayama in the framework of the domain structures theory.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 50/38 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Solovev, P. N.; Соловьев, Платон Николаевич; Izotov, A. V.; Изотов, Андрей Викторович; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович
}
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14.

Magnetic properties of permalloy thin film edges / B. A. Belyaev, N. M. Boev, A. V. Izotov [et al.] // Russ. Phys. J. - 2020. - Vol. 63, Is. 1. - P. 16-22, DOI 10.1007/s11182-020-01997-6. - Cited References: 23. - This work was supported by the Ministry of Science and Higher Education of the Russian Federation (Project No. 02.G25.31.0313). . - ISSN 1064-8887. - ISSN 1573-9228
Рубрики:
ANISOTROPIES
Кл.слова (ненормированные):
magnetic thin film -- ferromagnetic resonance -- edge effects -- magnetic anisotropy
Аннотация: The paper presents the results of ferromagnetic resonance (FMR) spectrometry of magnetic properties of nanocrystalline thin films obtained by magnetron sputtering of permalloy targets of various composition (NixFe1-x, x = 0.6-0.85). The behavior of the main magnetic properties of the thin film edges is analyzed. Near the film edges, not only the fluctuation of the uniaxial magnetic anisotropy field is observed, but also a drastic widening of the FMR line and the decrease in the effective saturation magnetization.

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Публикация на русском языке Особенности поведения магнитных характеристик вблизи краев тонких пермаллоевых пленок [Текст] / Б. А. Беляев, Н. М. Боев, А. В. Изотов [и др.] // Изв. вузов. Физика. - 2020. - Т. 63 № 1. - С. 17-23

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Izotov, A. V.; Изотов, Андрей Викторович; Skomorokhov, G. V.; Скоморохов, Георгий Витальевич; Solovev, P. N.; Соловьев, Платон Николаевич; Ministry of Science and Higher Education of the Russian Federation [02, G25.31.0313]
}
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15.

    Strain-gradient-induced unidirectional magnetic anisotropy in nanocrystalline thin permalloy films / B. A. Belyaev [et al.] // Phys. Status Solidi RRL. - 2020. - Vol. 14, Is. 1. - Ст. 1900467, DOI 10.1002/pssr.201900467. - Cited References: 35. - This work was supported by the Ministry of Education and Science of the Russian Federation, project no. RFMEFI60417X0179. . - ISSN 1862-6254. - ISSN 1862-6270
   Перевод заглавия: Однонаправленная магнитная анизотропия в нанокристаллической тонкой пермаллоевой пленке, индуцированная градиентом деформаций
Кл.слова (ненормированные):
flexomagnetic effect -- strain gradients -- unidirectional magnetic anisotropy
Аннотация: Herein, the effect of inhomogeneous elastic deformation on the magnetic anisotropy of Ni71.5Fe28.5 wt% nanocrystalline films is investigated. The in‐plane controlled strains are induced in the film by bending of a glass substrate which has a thickness step in the middle. Ferromagnetic resonance measurements reveal the existence of in‐plane unidirectional magnetic anisotropy. The anisotropy behavior directly correlates with the calculated strain gradients. It is shown that this correlation is well explained by the flexomagnetic effect, which establishes the relation between the magnetization and the inhomogeneous strains. The experimental value of the flexomagnetic coefficient for the thin Ni71.5Fe28.5 wt% film is 1.5 × 10−3 T m.

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Держатели документа:
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Svobodny pr. 79, Krasnoyarsk 660041, Russia
Federal Research Center KSC SB RAS, Kirensky Institute of Physics, Akademgorodok 50, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Izotov, A. V.; Изотов, Андрей Викторович; Solovev, P. N.; Соловьев, Платон Николаевич; Boev, N. M.; Боев, Никита Михайлович
}
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16.

Non-standing spin-waves in confined micrometer-sized ferromagnetic structures under uniform excitation / S. Pile, T. Feggeler, T. Schaffers [et al.] // Appl. Phys. Lett. - 2020. - Vol. 116, Is. 7. - Ст. 072401, DOI 10.1063/1.5139881. - Cited References: 37. - The use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. The authors would like to thank the Austrian Science Foundation (FWF), Project No. I-3050 as well as the German Research Foundation (DFG), Project No. OL513/1-1 for financial support. K.O., H.W., B.Z and M.F. acknowledge additional funding from Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – Project-ID 405553726 – TRR 270 and B.Z and M.F. acknowledge additional funding from Research Grant No. 075-15-2019-1886 from the Government of the Russian Federation . - ISSN 0003-6951
Кл.слова (ненормированные):
Ferromagnetic materials -- Ferromagnetic resonance -- Ferromagnetism -- Iron alloys -- Magnetic logic devices -- Micrometers -- Nickel alloys -- Permalloy
Аннотация: A non-standing characteristic of directly imaged spin-waves in confined micrometer-sized ultrathin Permalloy (Ni80Fe20) structures is reported along with evidence of the possibility to alter the observed state by modifications to the sample geometry. Using micromagnetic simulations, the presence of the spin-wave modes excited in the Permalloy stripes along with the quasi-uniform modes was observed. The predicted spin-waves were imaged in direct space using time resolved scanning transmission X-ray microscopy, combined with a ferromagnetic resonance excitation scheme (STXM-FMR). STXM-FMR measurements revealed a non-standing characteristic of the spin-waves. Also, it was shown by micromagnetic simulations and confirmed using STXM-FMR results that the observed characteristic of the spin-waves can be influenced by the local magnetic fields in different sample geometries.

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Держатели документа:
Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz, Linz, 4040, Austria
Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Duisburg, 47057, Germany
Ernst Ruska-Centrum fur Mikroskopie und Spektroskopie Mit Elektronen, Forschungszentrum Julich GmbH, Julich, D-52425, Germany
Kirensky Institute of Physics, Federal Research Center Ksc Sb Ras, Krasnoyarsk, 660036, Russian Federation
Stanford Synchrotron Radiation Laboratory, Slac National Accelerator Laboratory, Menlo Park, CA 94025, United States
Department of Physics, University of California Santa Cruz, Santa Cruz, CA 95064, United States
Department of Applied Physics, Aalto University School of Science, NanoSpin, P.O. Box 15100, Aalto, FI-00076, Finland
Lawrence Berkeley National Laboratory, Advanced Light Source, Berkeley, CA 94720, United States
Department of Material Sciences and Engineering, Stanford University, Stanford, CA 94305, United States

Доп.точки доступа:
Pile, S.; Feggeler, T.; Schaffers, T.; Meckenstock, R.; Buchner, M.; Spoddig, D.; Zingsem, B.; Ney, V.; Farle, M.; Фарле, Михаель; Wende, H.; Ohldag, H.; Ney, A.; Ollefs, K.
}
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17.

Domain structure and magnetization reversal in multilayer structures consisting of thin permalloy films separated with nonmagnetic interlayers / B. A. Belyaev, N. M. Boev, A. V. Izotov, P. N. Solovev // Russ. Phys. J. - 2021. - Vol. 64, Is. 6. - P. 1160-1167, DOI 10.1007/s11182-021-02436-w. - Cited References: 30. - This work was financially supported by the Ministry of Science and Higher Education under agreement No. 075-11-2019-054 November 22, 2019 . - ISSN 1064-8887. - ISSN 1573-9228

РУБ Physics, Multidisciplinary
Рубрики:
MICROMAGNETIC CALCULATION
   MAGNETOMETER
   SIMULATION
   NOISE
Кл.слова (ненормированные):
micromagnetic modeling -- multilayer magnetic film -- domain structure -- hysteresis loop -- microstrip resonator -- magnetic field sensor
Аннотация: Using numerical micromagnetic modeling, we have investigated the development of domain structure and magnetization reversal in multilayer thin-film structures. The permalloy (Ni80Fe20) magnetic layers had the inplane uniaxial and perpendicular magnetic anisotropy. We found that as the thickness of nonmagnetic interlayers decreases, the in-plane configuration of magnetic moments in the permalloy layers transforms from a single domain state to stripe domains, which is caused by the increase of magnetostatic interaction between layers. In structures with "thick" interlayers, even weak magnetostatic interaction enforces the neighboring single domain permalloy layers to have opposite orientations of magnetic moments. The saturation field of such samples increases linearly with the number of layers. By analyzing the dynamic characteristics of multilayers, we determined the optimum number of layers ensuring the maximum conversion efficiency of wideband microwave microstrip sensors of weak magnetic fields.

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Публикация на русском языке Доменная структура и процессы перемагничивания многослойных систем из тонких пленок пермаллоя с немагнитными прослойками [Текст] / Б. А. Беляев, Н. М. Боев, А. В. Изотов, П. Н. Соловьев // Изв. вузов. Физика. - 2021. - Т. 64 № 6. - С. 170-176

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys Fed Res Ctr KSC, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Izotov, A. V.; Изотов, Андрей Викторович; Solovev, P. N.; Соловьев, Платон Николаевич; Ministry of Science and Higher EducationMinistry of Science and Higher Education, PolandEuropean Commission
}
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18.

Inspection probes of a ferromagnetic resonance scanning spectrometer / B. A. Belyaev, N. M. Boev, A. A. Gorchakovsky, R. G. Galeev // Instrum. Exp. Tech. - 2021. - Vol. 64, Is. 2. - P. 277-284, DOI 10.1134/S0020441221010218. - Cited References: 24. - This study was supported by the Ministry of Science and Higher Education of the Russian Federation as part of a complex project on the development of high-technology production facilities (agreement no. 075-11-2019-054, November 22, 2019) . - ISSN 0020-4412
Кл.слова (ненормированные):
Electromagnetic waves -- Ferromagnetic materials -- Ferromagnetism -- Iron alloys -- Nickel alloys -- Probes -- Q factor measurement -- Signal to noise ratio -- Spectrometers -- Frequency ranges -- High Q factor -- Hole diameter -- Local areas -- Permalloy films -- Scanning spectrometer -- Thin magnetic films -- Ferromagnetic resonance
Аннотация: The design of inspection probes for a scanning ferromagnetic resonance spectrometer, which are designed for recording the absorption spectra of electromagnetic energy by local areas of thin magnetic films, is described. The degree of locality is determined by the diameter of the measuring hole of the probe in the range of 0.1–1.0 mm. The sensitivity of the device is significantly increased due to the miniaturization of the heterogeneous measuring resonator and its comparatively high Q factor. A set of replaceable probes makes it possible to cover the frequency range of 0.1–6.0 GHz, the signal-to-noise ratio for a probe with a hole diameter of 0.8 mm, which was measured on a permalloy film with a thickness of 5 nm, is at least 20 dB.

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Публикация на русском языке Измерительные головки сканирующего спектрометра ферромагнитного резонанса [Текст] / Б. А. Беляев, Н. М. Боев, A. A. Горчаковский, Р. Г. Галеев // Приборы и техн. эксперим. - 2021. - № 2. - С. 107-114

Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660074, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation
AO NPP Radiosvyaz, Krasnoyarsk, 660021, Russian Federation

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Gorchakovsky, A. A.; Горчаковский, Александр Антонович; Galeev, R. G.
}
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19.

Second harmonic generation in thin permalloy film / P. N. Solovev, A. O. Afonin, B. A. Belyaev [et al.] // J. Phys. D. - 2021. - Vol. 54, Is. 42. - Ст. 425002, DOI 10.1088/1361-6463/ac1762. - Cited References: 43. - This work was supported by the Russian Science Foundation under Grant No. 19-72-10047. The equipment of the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center 'Krasnoyarsk Science Center SB RAS' was used during the measurement . - ISSN 0022-3727. - ISSN 1361-6463

РУБ Physics, Applied
Рубрики:
FERROMAGNETIC-RESONANCE
   MAGNETIZATION DYNAMICS
   HARMONIC-GENERATION
   FERRITES
Кл.слова (ненормированные):
ferromagnetic resonance -- frequency doubling -- nonlinear dynamics -- thin magnetic film -- second harmonic
Аннотация: Second harmonic generation versus strength and direction of the applied static magnetic field was measured for a thin permalloy (Ni80Fe20) film in a microstrip line at a driving frequency of 1 GHz and maximum input power of ~110 mW. The measurements revealed two peaks in the double frequency signal—in the low static field (~10 Oe) and the high one (~45 Oe). To explain these findings, a macrospin model of a thin magnetic film with in-plane uniaxial magnetic anisotropy was considered. A perturbation expansion of the Landau–Lifshitz–Gilbert equation provided an explanation of the experimental data. The analysis of the model revealed that the low-field peak was caused by the longitudinal second-order magnetization component and the high-field peak by the transversal one. It was also shown that the uniaxial magnetic anisotropy of the film and the dependence of the magnetic damping parameter on the applied field play an important role in the process of the second harmonic generation. The results obtained give insights into some peculiarities of the nonlinear magnetization dynamics that are important in the development of magnetic film-based devices in the field of microwave signal processing and manipulation.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, 50-38 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Solovev, P. N.; Соловьев, Платон Николаевич; Afonin, A. O.; Афонин, Алексей Олегович; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Govorun, I. V.; Говорун, Илья Валерьевич; Izotov, A. V.; Изотов, Андрей Викторович; Ugryumov, A. V.; Угрюмов, Андрей Витальевич; Leksikov, An. A.; Лексиков, Андрей Александрович; Russian Science FoundationRussian Science Foundation (RSF) [19-72-10047]
}
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20.

Magnetic properties and peculiarities of the domain structure of multilayer permalloy-based GMI elements / A. A. Pasynkova, V. N. Lepalovskii, A. V. Svalov [et al.] // Phys. Met. Metallogr. - 2022. - Vol. 123, Is. 7. - P. 715-720, DOI 10.1134/S0031918X22070146. - Cited References: 17. - The studies were performed in terms of a state assignment of the Ministry of Science and Higher Education of the Russian Federation, no. FEUZ-2020-0051 . - ISSN 0031-918X
Кл.слова (ненормированные):
magnetic properties -- magnetic domain structure -- magnetic impedance -- permalloy-based film elements
Аннотация: Magnetic properties and peculiarities of the domain structure of multilayer [Ti/FeNi]х/Cu/[FeNi/Ti]x elements, the geometry of which ensures the high magnetoimpedance effect, are studied by varying the number of layers in the range x = 0–5. Peculiarities of the magnetization processes of the multilayer structures, which are magnetized at both substrate and free surfaces, are analyzed. It has been found that elements in which the magnetization reversal from the free side occurs by rotation of the magnetization vector have a higher magnetoimpedance effect compared to elements in which the magnetization reversal occurs with the formation of 180° domain walls both in the layer from the side of the substrate and the free layer as well.

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Публикация на русском языке Магнитные свойства и особенности доменной структуры многослойных ГМИ-элементов на основе пермаллоя [Текст] / А. А. Пасынкова, В. Н. Лепаловский, А. В. Свалов [и др.] // Физ. металлов и металловед. - 2022. - Т. 123 № 7. - С. 682-686

Держатели документа:
Ural Federal University, Ekaterinburg, 620002, Russian Federation
Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Ekaterinburg, 620108, Russian Federation
Institute of Physics, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Universidad del Pais Vasco UPV/EHU, Leioa, 48940, Spain

Доп.точки доступа:
Pasynkova, A. A.; Lepalovskii, V. N.; Svalov, A. V.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Kurlyandskaya, G. V.
}
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