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Effect of annealing on the magnetic properties of (Co40Fe40B20)x(SiO2)1–x granular nanocomposites / E. A. Denisova [et al.] // Bull. Russ. Acad. Sci. Phys. - 2016. - Vol. 80, Is. 11. - P. 1332-1334, DOI 10.3103/S1062873816110186. - Cited References: 31. - This work was supported by the Russian Foundation for Basic Research, project nos. 15-08-06673, 16-03-00256, and RFBR-KRFS 15-42-04171. . - ISSN 1062-8738
Кл.слова (ненормированные):
Annealing -- Magnetic properties -- Multilayers -- Spin waves -- Sputtering -- Concentration dependence -- Effect of annealing -- Granular composites -- Ion-beam sputtering -- Metal phase -- Spin wave resonances -- Ion beams
Аннотация: The effect of annealing on the magnetic properties of (Co40Fe40B20)x(SiO2)1–x granular composites fabricated via ion-beam sputtering is investigated. It is established that annealing changes the concentration dependences of the ferromagnetic resonance field and linewidth and shifts the regions of metal phase concentration corresponding to the spin-wave resonance. © 2016, Allerton Press, Inc.

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Публикация на русском языке Влияние термической обработки на магнитные свойства гранулированных нанокомпозитов (Co40Fe40B20)x(SiO2)1-x [Текст] / Е. А. Денисова [и др.] // Изв. РАН. Сер. физич. - 2016. - Т. 80 № 11. - С. 1500-1503

Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Voronezh State Technical University, Voronezh, Russian Federation

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Chekanova, L. A.; Чеканова, Лидия Александровна; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Kalinin, Y. E.; Sitnikov, A. V.
}
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    Kirenskii, L. V.
    Magnetische mehrfachschichten / L. V. Kirenskii, T. P. Izotova, N. M. Salanskii, N. S. Chistyakov // Phys. Status Solidi. - 1966. - Vol. 17, Is. 2. - P. 489-499. - Библиогр.: 20. - Phys. Abstr. - 1967. - Vol. 70, 15146
   Перевод заглавия: Многослойные пленчатые системы
Аннотация: Es werden die Wechselwirkung zweier magnetischer FeNi und FeNiCo Schichten, die durch eine Si02-Schicht getrennt sind und einige Besonderheiten bei der Transmission elektromagnetischer Mikrowellen durch geschichtete dünne Magnetschichten, die durch Si02 getrennt sind, untersucht. Dabei wird gefunden, daß die Koerzitivkraft der Schichten in einem Vielschichtsystem abnimmt. Dieser Effekt wird durch lokale magnetische Wechselwirkung zwischen den magnetischen Schichten erklärt. Die Abnahme der Koerzitivkraft hängt von der Schichtdicke ab und wird durch den wechselnden Charakter der lokalen Wechselwirkung erklärt. Die Transmissions- und Reflexionskoeffizienten wurden gemessen; sie hängen von der Dicke der einzelnen Schichten und von der Gesamtdicke der ferromagnetischen Metallschichten in dem Vielschichtsystem ab. Die Transmissionskoeffizienten für Vielschichtsysteme sind wesentlich größer als bei der einzelnen Schicht. Die Transmission der Mikrowellenenergie durch die Vielschichtsysteme wird im Rahmen der gewöhnlichen Elektrodynamik erklärt.
Это взаимодействие двух магнитных слоев FeNi и FeNiCo, которые отделены друг от друга слоем Si02 и некоторые особенности при передаче электромагнитных микроволн через слоистых магнитных тонких слоев, разделенных Si02 изучены. В этом случае, было обнаружено, что коэрцитивная сила слоев уменьшается в многослойной системе. Этот эффект объясняется локальным магнитным взаимодействием между магнитными слоями. Уменьшение коэрцитивной силы зависит от толщины слоя и объясняется меняющимся характером локального взаимодействия. Были измерены коэффициенты пропускания и отражения; они зависят от толщины каждого слоя и общей толщины ферромагнитных слоев металла в многослойной системе с. Коэффициент пропускания многослойных системах значительно больше, чем в одном слое. Передача микроволновой энергии через многослойные системы объясняется в обычной электродинамики.

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Доп.точки доступа:
Izotova, T. P.; Изотова Т. П.; Salanskii, N. M.; Саланский, Наум Моисеевич; Chistyakov, N. S.; Чистяков, Николай Сергеевич; Киренский, Леонид Васильевич; International colloquium on magnetic thin films(2 ; 1966 ; 25-28 April ; Jena)
}
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Ovchinnikov, S. G.
Application of synchrotron radiation to the study of magnetic materials / S. G. Ovchinnikov // Uspekhi Fiz. Nauk. - 1999. - Vol. 169, Is. 8. - P. 869-887. - Cited References: 93 . - ISSN 0042-1294

РУБ Physics, Multidisciplinary
Рубрики:
X-RAY-SCATTERING
   RESONANCE EXCHANGE SCATTERING
   RARE-EARTH-METALS
   CIRCULAR-DICHROISM
   VALENCE STATES
   CO/PD(111) MULTILAYERS
   ABSORPTION-SPECTRA
   PHASE-TRANSITIONS
   SPIN POLARIZATION
   EDGE STRUCTURE
Аннотация: The recent results of the studies of magnetic materials using synchrotron irradiation are reviewed. The influence of magnetic effects on X-ray scattering is studied for linearly and circularly polarized photons, and effects of magnetic circular dichroism on the spectra of X-ray absorption and photoelectron emission are discussed. It is shown that X-ray magnetooptics techniques provide fine details of crystal and magnetic structures and also make it possible to separate the spin and orbital contributions to the total moment; to obtain element- and position-sensitive information on the magnetic properties of the material; to visualize domains and domain walls; and to probe magnetization reversal dynamics. A comparison of magnetic neutron and X-ray methods is given.

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

Доп.точки доступа:
Овчинников, Сергей Геннадьевич
}
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Belyaev, B. A.
Scattering of electromagnetic waves by a metal lattice placed at the interface of two media / B. A. Belyaev, V. V. Tyurnev // J. Commun. Technol. Electron. - 2017. - Vol. 62, Is. 7. - P. 750-758, DOI 10.1134/S1064226917070026. - Cited References: 24 . - ISSN 1064-2269
Кл.слова (ненормированные):
Bandpass filters -- Electromagnetic waves -- Frequency bands -- Frequency response -- Optical multilayers -- Reflection -- Dielectric layer -- Efficient control -- Electromagnetic analysis -- Lattice periods -- Metal lattices -- Optical bandpass filters -- Scattering matrices -- Scattering of electromagnetic waves -- Electromagnetic wave scattering
Аннотация: Simple formulas for determination of components of the scattering matrix of a plane electromagnetic wave incident along the normal onto a thin infinite 2D metal lattice with square windows placed at the interface of two media are derived for the first time. Frequency responses (FRs) of this structure calculated with the use of these formulas agree well with responses obtained by the numerical electromagnetic analysis of a 3D model in the case when the lattice period is less than one-half of the wavelength. The capability of efficient control of the FR of the analyzed structure by means of variation in the width of conductors and the lattice period enables application of this lattice for fabrication of a reflector with prescribed reflectivity. Such reflectors at interfaces of dielectric layers are required, for example, in the design of multilayer sufaces radio transparent in a specified frequency band or optical bandpass filters.

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Публикация на русском языке Беляев, Борис Афанасьевич. Рассеяние электромагнитных волн на металлической решетке, расположенной на границе раздела двух сред [Текст] / Б. А. Беляев, В. В. Тюрнев // Радиотехн. и электроника. - 2017. - Т. 62 № 7. - С. 642-650

Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Беляев, Борис Афанасьевич
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Stress-wave change in the copper structure: Covering magnetic response / N. A. Shepeta [et al.] // IOP Conf. Ser.: Mater. Sci. Eng. - 2019. - Vol. 560: 13th International Conference on Mechanical Engineering, Automation and Control Systems, MEACS 2018 (12 December 2018 through 14 December 2018, ) Conference code: 149903, Is. 1. - Ст. 012158, DOI 10.1088/1757-899X/560/1/012158. - Cited References: 15
Кл.слова (ненормированные):
Copper -- Deformation -- Elastic waves -- Flight control systems -- Magnetism -- Multilayer films -- Multilayers -- Wavefronts
Аннотация: The work presents the results of the investigationof deformation processes occurring in copper after stress-wave influence. Structural changes analysis is carried out by direct research methods (X-ray phase analysis and optical microscopy) along and perpendicular to the spreading direction of the stress wave front in the copper foil plane. For more information, investigations have been conducted by an indirect method using ferromagnetic resonance of magnetic characteristics. As a magnetic covering, Co/Ni-type multilayer films are deposited on the copper foil, which makes it possible to apply magnetic research methods. The magnetic response of the multilayer covering correlates with the modification of the copper structure observed by direct methods. The information obtained in the course of research allows us to conclude that the wave character of the deformation processes occurring in copper is natural. The value and direction of structural modifications vary along the sample length as a function with a long-wave period is about 30 mm, which is consistent with the inhomogeneous distribution model of internal stresses. Throughout the sample length, alternating areas of stretching and compression of copper grains are fixed along the spreading direction of the stress wave front. The greatest stretching of the structural elements is observed at a distance equal to almost half the wavelength of the mechanical deformation field. Thus, the translational (shear) mode of the mechanical field of material plastic flow appears as the results of the investigation. © 2019 Published under licence by IOP Publishing Ltd.

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Держатели документа:
Siberian Federal University, 79, Svobodny Ave., Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 50/38, Academgorodok Str., Krasnoyarsk, 660036, Russian Federation
Institute for Energy Research, Safety Research and Reactor Technology, Forschungszentrum Julich GmbH, Julich, D-52425, Germany
Reshetnev Siberian State University of Science and Technology, 31, Krasnoyarsky Rabochy Ave., Krasnoyarsk, 660037, Russian Federation

Доп.точки доступа:
Shepeta, N. A.; Denisova, E. A.; Денисова, Елена Александровна; Bucaemskii, A. A.; Tynchenko, V. S.; Gorodov, A. A.; International Conference on Mechanical Engineering, Automation and Control Systems(13 ; 2008 ; 12 - 14 Dec. ; Novosibirsk)
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Vazhenina, I. G.
Spin-Wave Resonance Detection of Nanostructured Magnetic Alloy Inhomogeneities, Using the Example of Co–P and Co–Ni Planar Systems / I. G. Vazhenina, L. A. Chekanova, R. S. Iskhakov // Bull. Russ. Acad. Sci. Phys. - 2019. - Vol. 83, Is. 6. - P. 713-715, DOI 10.3103/S1062873819060364. - Cited References: 12. - The reported study was funded by the Russian Foundation for Basic Research, the Government of Krasnoyarsk Krai, and the Krasnoyarsk Regional Fund of Science as part of research project no. 18-42-243005 “Synthesis and Investigation of Magnetic Properties of Gradient Materials Characterized by a Predetermined Type of the Magnetic Parameter Change.” . - ISSN 1062-8738
Кл.слова (ненормированные):
Magnetic materials -- Magnetic thin films -- Multilayers -- Nanocrystals -- Nickel alloys -- Resonance -- Spin waves -- Thickness measurement
Аннотация: Inhomogeneous layered magnetic thin films of amorphous and nanocrystalline Со–Р and Co–Ni alloys are studied via spin-wave resonance. It is found that the formation of a magnetic potential profile specified over the coating thickness leads to characteristic modifications of the spin-wave resonance spectrum. Another important factor that determines the type of modification is the dominant magnetic parameter (the constant of magnetization or exchange coupling).

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Публикация на русском языке Важенина, Ирина Георгиевна. Неоднородности в магнитных наноструктурных сплавах, выявляемые методом спин-волнового резонанса, на примере планарных систем Co–P и Co–Ni [Текст] / И. Г. Важенина, Л. А. Чеканова, Р. С. Исхаков // Изв. РАН. Сер. физич. - 2019. - Т. 83 № 6. - С. 786–788

Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Chekanova, L. A.; Чеканова, Лидия Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Важенина, Ирина Георгиевна
}
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Altunin, R. R.
Structural phase transformations in Al/Pt bilayer thin films during the solid-state reaction / R. R. Altunin, E. T. Moiseenko, S. M. Zharkov // Phys. Solid State. - 2018. - Vol. 60, Is. 7. - P. 1413-1418, DOI 10.1134/S106378341807003X. - Cited References: 26. - This study was supported by the Russian Foundation for Basic Research, project no. 16-33-00475 mol_a. . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
AL
   SYSTEM
   MULTILAYERS
   ALUMINUM
   HEAT
Аннотация: A sequence of phases forming during the solid-phase reaction in Al/Pt bilayer thin films has been investigated by in situ electron diffraction. It is shown that the amorphous PtAl2 phase forms first during the solid-phase reaction initiated by heating. Upon further heating, PtAl2, Pt2Al3, PtAl, and Pt3Al crystalline phases sequentially form, which is qualitatively consistent with an effective formation heat model. The content of phases forming during the reaction has been quantitatively analyzed and the structural phase transformations have been examined.

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Публикация на русском языке Алтунин, Роман Русланович. Структурные фазовые превращения при твердофазной реакции в тонких двухслойных пленках Al/Pt [Текст] / Р. Р. Алтунин, Е. Т. Моисеенко, С. М. Жарков // Физ. тверд. тела. - 2018. - Т. 60 Вып. 7. - С. 1397–1402

Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Moiseenko, E. T.; Zharkov, S. M.; Жарков, Сергей Михайлович; Russian Foundation for Basic Research [16-33-00475 mol_a]
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Anomalous temperature dependence of the magnetoresistance in Co/Cu multilayers / P. D. Kim [et al.] // Phys. Solid State. - 2000. - Vol. 42, Is. 9. - P. 1688-1690, DOI 10.1134/1.1309452. - Cited References: 5 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
FILMS
Аннотация: An anomalous temperature dependence of magnetoresistance (MR) of Co/Cu multilayer films with a similar to 3 Angstrom thick magnetic layer has been established experimentally. The temperature of the MR maximum T-max is shown to coincide with the Neel temperature. The variation of T-max with the Cu layer thickness follows an oscillatory pattern. (C) 2000 MAIK "Nauka/Interperiodica".

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

Доп.точки доступа:
Kim, P. D.; Ким, Пётр Дементьевич; Khalyapin, D. L.; Turpanov, I. A.; Турпанов, Игорь Александрович; Li, L. A.; Ли, Людмила Алексеевна; Beten'kova, A. Ya.; Бетенькова, Анна Яковлевна; Kan, S. V.
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Self-propagating high-temperature synthesis in Pt/Co/MgO(001) epitaxial thin films / V. G. Myagkov [et al.] // Phys. Solid State. - 2000. - Vol. 42, Is. 5. - P. 968-972, DOI 10.1134/1.1131321. - Cited References: 26 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
PERPENDICULAR MAGNETIC-ANISOTROPY
   LAYERED STRUCTURES
   CO/PT
   MULTILAYERS
   SUPERLATTICES
   PTFE(001)
   GROWTH
   PD/CO
Аннотация: The self-propagating high-temperature synthesis in the two-layer and multilayer Pt / Co(001) thin films has been investigated. It is shown that the initiation of the synthesis occurs at temperatures of 770-820 K. After the synthesis in the two-layer film samples, the PtCo(001) disordered phase exhibits an epitaxial growth at the interface between cobalt and platinum layers. In the multilayer Pt/Co(001) thin films, the self-propagating high-temperature synthesis also brings about the formation of the PtCo(001) disordered phase on the MgO(001) surface. Further annealing at a temperature of 870 K for 4 h results in the transition of the PtCo(001) disordered phase to the ordered phase. Rapid thermal annealing of the Pt/Co(001) multilayer films at a temperature of 1000 K leads to the formation of the CoPt3 phase. The magnetic characteristics change in accord with the structural transformations in Pt/Co film samples. (C) 2000 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Div, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia
ИФ СО РАН
ИХХТ СО РАН

Доп.точки доступа:
Myagkov, V. G.; Мягков, Виктор Григорьевич; Li, L. A.; Ли, Людмила Алексеевна; Bykova, L. E.; Быкова, Людмила Евгеньевна; Turpanov, I. A.; Турпанов, Игорь Александрович; Kim, P. D.; Ким, Пётр Дементьевич; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич; Bondarenko, G. N.; Бондаренко, Галина Николаевна
}
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10.

Ignatchenko, V. A.
Wave spectrum of multilayers with finite thicknesses of interfaces / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // Phys. Rev. B. - 2000. - Vol. 62, Is. 3. - P. 2181-2184, DOI 10.1103/PhysRevB.62.2181. - Cited References: 24 . - ISSN 0163-1829

РУБ Physics, Condensed Matter
Рубрики:
SPIN
EXCITATIONS
MEDIA
Аннотация: To describe a multilayer structure with arbitrary thicknesses of the interfaces between layers, we introduce a model in which the dependence of a material parameter along the axis of such a superlattice is described by a Jacobian elliptic sine function. Depending on the value of the modulus kappa of the elliptic function, the model describes the limiting cases of multilayers with sharp interfaces (kappa=1, d/l=0, where d is the thickness of the interface, l is the period of the superlattice) and of sinusoidal superlattices (kappa=0, d/l=1/4), as Well as all intermediate situations. We investigate the wave spectrum in such a superlattice. The dependences of the widths of the gaps in the spectrum at the boundaries of ail odd Brillouin zones on the ratio d/l are found. It is shown that the thicknesses of the interfaces can be determined if the experimental value of the relation between the widths of the first gap Delta v(1) and any other gap Delta v(n) is known.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
ИФ СО РАН

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Игнатченко, Вальтер Алексеевич
}
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11.

Ignatchenko, V. A.
The spectrum and damping of waves in partially randomized multilayers / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // J. Phys.: Condens. Matter. - 1999. - Vol. 11, Is. 13. - P. 2773-2790, DOI 10.1088/0953-8984/11/13/013. - Cited References: 24 . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
SPIN-WAVES
   SEMICONDUCTOR SUPERLATTICES
   LOCALIZATION
   SYSTEMS
Аннотация: The spectrum and damping of waves in partially randomized multilayer structures are calculated. A method of calculation that was proposed and demonstrated earlier, for the model of a superlattice with a harmonic dependence of its material parameters along its axis in the initial state, is extended to the case of a multilayer structure (i.e., a superlattice with sharp interfaces). One- and three-dimensional random modulations of the period are considered, and the correlation function of the superlattice is derived as a series in which each term is a product of a harmonic and a monotonically decaying function. The law of decay of the correlation function is Gaussian for smooth inhomogeneities, and has different forms for one- and three-dimensional short-wavelength inhomogeneities. The spectrum and damping of waves in the superlattice described by this correlation function are found in the weak-coupling approximation in the vicinities of all of the odd Brillouin zone boundaries. Analytical dependences of the main characteristics of the spectrum and damping on the zone number n are obtained. The conditions for the closing of the gaps at the Brillouin zone boundaries are derived, and depend on the dimensionality of the inhomogeneities and the degree of their smoothness.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Irvine, CA 92697 USA
ИФ СО РАН
L V Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation
University of California, Irvine, CA 92697 4575, United States

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Игнатченко, Вальтер Алексеевич
}
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12.

Spin-wave resonance in Co/Pd magnetic multilayers and NiFe/Cu/NiFe three-layered films / R. S. Iskhakov [et al.] // JETP Letters. - 2006. - Vol. 83, Is. 1. - P. 28-32, DOI 10.1134/S0021364006010073. - Cited References: 16 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
FERROMAGNETIC-RESONANCE
Аннотация: The spectrum of standing. spin waves has been detected by the ferromagnetic resonance method in NiFe(740 angstrom)/Cu/NiFe(740 angstrom) three-layered film structure in the perpendicular configuration for the copper thickness d(Cu) 30 angstrom, the resonance absorption curve is a superposition of two spinwave resonance spectra from individual ferromagnetic NiFe layers. For Co/Pd multilayer films, united spinwave resonance spectra have also been observed at thicknesses of the paramagnetic palladium layer up to d(Pd) 30 angstrom. The partial exchange stiffness has been calculated for a spin wave propagating across the Pd layer (A(Pd) d(c)).

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, 660014, Russian Federation
Krasnoyarsk State University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Shepeta, N. A.; Stolyar, S. V.; Столяр, Сергей Викторович; Chekanova, L. A.; Чеканова, Лидия Александровна; Yakovchuk, V. Y.
}
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13.

Ignatchenko, V. A.
Effects of cross correlations between 1D and 3D inhomogeneities on the high-frequency susceptibility of superlattices / V. A. Ignatchenko, Y. I. Mankov // J. Exp. Theor. Phys. - 2006. - Vol. 102, Is. 4. - P. 625-635, DOI 10.1134/S106377610604011X. - Cited References: 29 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
ELASTIC MEDIUM THEORY
   3-DIMENSIONAL INHOMOGENEITIES
   PERIODIC MULTILAYERS
   SPIN-WAVES
   LOCALIZATION
   SPECTRUM
   SYSTEMS
   MEDIA
   DISORDER
Кл.слова (ненормированные):
Correlation methods -- Damping -- Function evaluation -- Wave equations -- Brillouin zone -- Distribution function -- Random variables -- Superlattices
Аннотация: Cross Correlations between components of a mixture of one-dimensional (I D) and three-diniensional (3D) inhomogenetics are described by introducing a distribution function taking into account correlations between absolute values of two random variables in the absence of correlations between the variables themselves. This distribution function is used for derivation and analysis of the superlattice correlation function containing a mixture of cross-correlated 1D and 3D in homogeneitics. The effect of such inhomogeneities on the high-frequency susceptibility at the edge of the first Brillouin zone of the superlattice is investigated. It is shown that positive cross correlations partly suppress the effect of a mixture of 1D and 3D inhomogeneities on the wave spectrum: the gap at the boundary of the Brillouin zone increases, and wave damping decreases as compared to the effect produced by a mixture of 1D and 3D inhomogeneities in the absence of cross correlations. Negative cross correlations lead to the opposite effect: the gap decreases and wave damping increases. Cross correlations also lead to the emergence of new resonance effects: a narrow dip or a narrow peak at the center of the band gap (depending on the sign of the correlation factor).

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

Доп.точки доступа:
Mankov, Y. I.; Игнатченко, Вальтер Алексеевич
}
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14.

Ignatchenko, V. A.
Spectrum of waves in randomly modulated multilayers / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // Phys. Rev. B. - 1999. - Vol. 59, Is. 1. - P. 42-45, DOI 10.1103/PhysRevB.59.42. - Cited References: 14 . - ISSN 0163-1829

РУБ Physics, Condensed Matter
Рубрики:
SEMICONDUCTOR SUPERLATTICES
LOCALIZATION
SYSTEMS
Аннотация: The spectrum and damping of waves in partially randomized multilayer structures are calculated. A method of calculation which was proposed and demonstrated earlier for the model of a superlattice with a harmonic dependence of its material parameters along its axis in the initial state, is extended here to the case of a multilayer structure (i.e., a superlattice with sharp interfaces). One- and three-dimensional inhomogeneities are considered, and the correlation function of the superlattice is derived. The spectrum and damping of waves in the superlattice described by this correlation function are found in the weak-coupling approximation in the vicinities of all the odd Brillouin zone boundaries. [S0163-1829(99)14501-6].

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Держатели документа:
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
ИФ СО РАН

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Игнатченко, Вальтер Алексеевич
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15.

Ferromagnetic and spin-wave resonance in FexNi1-x (0x1) films / R. S. Iskhakov [et al.] // TRENDS IN MAGNETISM. - 2011. - Vol. 168-169. - P93-96, DOI 10.4028/www.scientific.net/SSP.168-169.93 . - ISSN 1012-0394
Кл.слова (ненормированные):
correlation radius -- dispersion law for spin waves -- exchange interaction -- ferromagnetic resonance -- spin-wave resonance -- thermal evaporation method -- crystal structure -- dispersion (waves) -- dispersions -- evaporation -- exchange interactions -- ferromagnetic materials -- ferromagnetic resonance -- ferromagnetism -- resonance -- spin waves -- crystal structure -- dispersion (waves) -- evaporation -- exchange interactions -- ferromagnetic materials -- ferromagnetic resonance -- ferromagnetism -- multilayers -- resonance -- spin waves -- thermal evaporation -- bcc structure -- correlation radius -- dispersion law -- feni alloys -- magnetic inhomogeneities -- magnetic state -- magnetization fluctuations -- spin-wave resonance -- thermal evaporation method -- spin wave resonances -- thermal evaporation -- magnetism
Аннотация: The spectrum of standing exchange magnon wave in FeNi alloy films obtained by thermal evaporation method is studied. The modification of dispersion law conditioned by magnetization fluctuations is detected. The films of invar structure having metastable bcc structure are most dispersing relative to magnetic state. The size of magnetic inhomogeneity was less than 5 nm.

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Держатели документа:
Kirensky Institute of Physics, SB, RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Krasnoyarsk Institute of Rail Transport, Krasnoyarsk 660028, Russian Federation

Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Stolyar, S. V.; Yakovchuk, V. Yu.; Яковчук, Виктор Юрьевич; Chizhik, M. V.; Pozdnyakov, V. G.; Vazhenina, I. G.
}
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16.

Ferromagnetic and spin-wave resonance in exchange-coupled NiFe/Ag/NiFe three-layer structures / R. S. Iskhakov [et al.] // TRENDS IN MAGNETISM. - 2011. - Vol. 168-169. - P69-72, DOI 10.4028/www.scientific.net/SSP.168-169.69 . - ISSN 1012-0394
Кл.слова (ненормированные):
acoustic mode -- exchange-coupled structures -- ferromagnetic resonance -- optic mode -- spin-wave resonance -- three-layer magnetic films -- ferromagnetic materials -- ferromagnetic resonance -- ferromagnetism -- magnetic devices -- magnetic films -- metallic films -- spin waves -- acoustics -- ferromagnetic materials -- ferromagnetic resonance -- ferromagnetism -- lattice vibrations -- multilayers -- resonance -- spin waves -- acoustic mode -- coupled structures -- optic mode -- spin-wave resonance -- three-layer -- exchange coupled -- exchange spin waves -- optic modes -- optical satellites -- resonance field -- spin wave resonances -- three-layer structures -- resonance -- magnetism
Аннотация: FMR and SWR spectra of exchange-coupled structures NiFe/Ag/NiFe have been investigated. We revealed that the optical satellites of the exchange spin-wave modes are characterized not by the standard Kittel-dependence but rather by their own resonance field dependence on the mode number: Hr opt(n)?n5/2.

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Держатели документа:
Kirensky Institute of Physics, Siberian Branch of RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Stolyar, S. V.; Yakovchuk, V. Yu.; Яковчук, Виктор Юрьевич; Chizhik, M. V.
}
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17.

    Influence of interface anisotropy on ferromagnetic resonance in CoP/(NiP)am/CoP films / G. S. Patrin, Y. G. Shiyan, A. V. Chzhan, S. A. Podorozhnyak // Mater. Res. Express. - 2021. - Vol. 8, Is. 5. - Ст. 056102, DOI 10.1088/2053-1591/abfcf5. - Cited References: 22. - This work was supported by the State order of the Ministry of Science and Higher Education of the Russian Federation (topic No. FSRZ-2020-0011) . - ISSN 2053-1591
   Перевод заглавия: Влияние интерфейсной анизотропии на ферромагнитный резонанс в пленках CoP/(NiP)am/CoP

РУБ Materials Science, Multidisciplinary
Рубрики:
MAGNETIC-ANISOTROPY
MULTILAYERS
Кл.слова (ненормированные):
multilayer films -- magnetic resonance -- interface anisotropy
Аннотация: The paper presents the results of ferromagnetic resonance studies of three-layer magnetic films, where the magnetic layers are amorphous magnetically soft CoP layers, and the intermediate non-magnetic spacer is amorphous NiP layer. We found that, regardless of the nonmagnetic layer thickness, the interlayer interaction is ferromagnetic. Perpendicular anisotropy forms at the interface between the CoP and NiP layers. It is reasonable to suppose that the interlayer interaction is long-range, what is not typical for systems with metallic non-magnetic spacers.

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Держатели документа:
Siberian Fed Univ, Svobodny Pr 79, Krasnoyarsk 660041, Russia.
RAS, LV Kirensky Phys Inst, Fed Res Ctr, KSC,SB, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.
Krasnoyarsk State Agr Univ, Mira Pr 90, Krasnoyarsk 660049, Russia.

Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Shiyan, Ya. G.; Шиян, Ярослав Германович; Chzhan, A. V.; Podorozhnyak, S. A.; State order of the Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0011]
}
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18.

Spin waves in multilayers with different magnitudes of the magnetization, exchange, and anisotropy [Text] / V. A. Ignatchenko, D. S. Tsikalov // Moscow Int. Symp. on Magnet. (MISM-2011) : Book of abstracts. - 2011. - Ст. 23PO-J-23. - P. 463. - Библиогр.: 3. - Support by the Program No. 27.1 of the RAS Presidium, the State Contract No. 02.740.11.0220 on the FTP, and the Program RNP 2.1.1/3498 is acknowledged.

Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Tsikalov, D. S.; Цикалов, Денис Сергеевич; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)
}
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19.

Magnetic properties of FeNi/Cu-based lithographic rectangular multilayered elements for magnetoimpedance applications / G. Yu. Melnikov, I. G. Vazhenina, R. S. Iskhakov [et al.] // Sensors. - 2023. - Vol. 23, Is. 13. - Ст. 6165, DOI 10.3390/s23136165. - Cited References: 72. - This research was funded by the Russian Science Foundation (RSF), project no. 22-29-00980, https://rscf.ru/project/22-29-00980/ (accessed on 1 July 2023). - Authors acknowledge the possibility to use the Krasnoyarsk Regional Center of Research Equipment of the Federal Research Center “Krasnoyarsk Science Center SB RAS” for ferromagnetic resonance studies. We thank A.A. Yuvchenko and V.N. Lepalovskij for special support. The authors wish to thank the anonymous referees for their comments and suggestions . - ISSN 1424-8220
Кл.слова (ненормированные):
magnetic multilayers -- permalloy -- magnetic properties -- ferromagnetic resonance -- spin-wave resonance -- magnetoimpedance -- magnetic field sensors
Аннотация: The rectangular elements in magnetoimpedance (MI) configuration with a specific nanocomposite laminated structure based on FeNi and Cu layers were prepared by lift-off lithographic process. The properties of such elements are controlled by their shape, the anisotropy induced during the deposition, and by effects associated with the composite structure. The characterizations of static and dynamic properties, including MI measurements, show that these elements are promising for sensor applications. We have shown that competition between the shape anisotropy and the in-plane induced anisotropy of the element material is worth taking into account in order to understand the magnetic behavior of multilayered rectangular stripes. A possibility of the dynamic methods (ferromagnetic and spin-wave resonance) to describe laminated planar elements having a non-periodic modulation of both structure and magnetic parameters of a system is demonstrated. We show that the multilayered structure, which was originally designed to prevent the development of a “transcritical” state in magnetic layers and to reach the required thickness, also induces the effects that hinder the achievement of the goal, namely an increase in the perpendicular magnetic anisotropy energy.

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Держатели документа:
Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
School of Space and Information Technology, Siberian Federal University, 660041 Krasnoyarsk, Russia
Applied Physics Department, Reshetnev Siberian State University of Science and Technology, 660037 Krasnoyarsk, Russia

Доп.точки доступа:
Melnikov, Grigory Yu.; Vazhenina, I. G.; Важенина, Ирина Георгиевна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Boev, N. M.; Боев, Никита Михайлович; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Svalov, Andrey V.; Kurlyandskaya, Galina V.
}
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20.

Ignatchenko, V. A.
Partial restoration of the wave spectrum of a superlattice due to cross correlations between one- and three-dimensional inhomogeneities / V. A. Ignatchenko, Y. I. Mankov // Phys. Rev. B. - 2007. - Vol. 75, Is. 23. - Ст. 235422, DOI 10.1103/PhysRevB.75.235422. - Cited References: 32 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
ELASTIC MEDIUM THEORY
   PERIODIC MULTILAYERS
   SPIN-WAVES
   LOCALIZATION
   SYSTEMS
   SUSCEPTIBILITY
   DISORDER
   MEDIA
Аннотация: Effects of cross correlations between one-dimensional (1D) and three-dimensional (3D) random inhomogeneities on the wave spectrum in sinusoidal superlattices are studied theoretically. The situation when the gap in the spectrum (the forbidden zone) at the first Brillouin zone boundary of the superlattice is closed under the action of the 1D inhomogeneities is considered. The phenomenon of the partial opening of this gap is found when the 3D inhomogeneities cross correlated with the 1D inhomogeneities add to the superlattice. The appearance of the logarithmic resonance in the center of the forbidden zone under the action of the cross correlations is shown. The physical nature of the effects in the wave spectrum of the superlattice that are caused by the cross correlations and the relation of these effects with the asymptotic properties of the correlation function of inhomogeneities are discussed.

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Держатели документа:
SB RAS, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
L. V. Kirensky Institute of Physics, SB RAS, 660036 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Mankov, Y. I.; Игнатченко, Вальтер Алексеевич
}
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