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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisova E. A., Komogortsev S. V., Iskhakov R. S., Chekanova L. A., Velikanov D. A., Kalinin Y. E., Sitnikov A. V.
Заглавие : Effect of annealing on the magnetic properties of (Co40Fe40B20)x(SiO2)1–x granular nanocomposites
Место публикации : Bull. Russ. Acad. Sci. Phys.: Allerton Press, 2016. - Vol. 80, Is. 11. - P.1332-1334. - ISSN 10628738 (ISSN), DOI 10.3103/S1062873816110186
Примечания : 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.
Ключевые слова (''Своб.индексиров.''): 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kirenskii L. V., Izotova T. P., Salanskii N. M., Chistyakov N. S.
Заглавие : Magnetische mehrfachschichten
Коллективы : International colloquium on magnetic thin films
Разночтения заглавия :загл., сост. Phys. abstr.: Magnetic multilayers
Место публикации : Phys. Status Solidi. - 1966. - Vol. 17, Is. 2. - P.489-499
Примечания : Библиогр.: 20. - Phys. Abstr. - 1967. - Vol. 70, 15146
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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ovchinnikov S. G.
Заглавие : Application of synchrotron radiation to the study of magnetic materials
Место публикации : Uspekhi Fiz. Nauk: MEZHDUNARODNAYA KNIGA, 1999. - Vol. 169, Is. 8. - P.869-887. - ISSN 0042-1294
Примечания : Cited References: 93
Предметные 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Tyurnev V. V.
Заглавие : Scattering of electromagnetic waves by a metal lattice placed at the interface of two media
Место публикации : J. Commun. Technol. Electron.: Maik Nauka-Interperiodica Publishing, 2017. - Vol. 62, Is. 7. - P.750-758. - ISSN 10642269 (ISSN), DOI 10.1134/S1064226917070026
Примечания : Cited References: 24
Ключевые слова (''Своб.индексиров.''): 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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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Shepeta N. A., Denisova E. A., Bucaemskii A. A., Tynchenko V. S., Gorodov A. A.
Заглавие : Stress-wave change in the copper structure: Covering magnetic response
Коллективы : International Conference on Mechanical Engineering, Automation and Control Systems
Место публикации : 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
Примечания : Cited References: 15
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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vazhenina I. G., Chekanova L. A., Iskhakov R. S.
Заглавие : Spin-Wave Resonance Detection of Nanostructured Magnetic Alloy Inhomogeneities, Using the Example of Co–P and Co–Ni Planar Systems
Место публикации : Bull. Russ. Acad. Sci. Phys. - 2019. - Vol. 83, Is. 6. - P.713-715. - ISSN 10628738 (ISSN), DOI 10.3103/S1062873819060364
Примечания : 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.”
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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Altunin R. R., Moiseenko E. T., Zharkov S. M.
Заглавие : Structural phase transformations in Al/Pt bilayer thin films during the solid-state reaction
Коллективы : Russian Foundation for Basic Research [16-33-00475 mol_a]
Место публикации : Phys. Solid State. - 2018. - Vol. 60, Is. 7. - P.1413-1418. - ISSN 1063-7834, DOI 10.1134/S106378341807003X. - ISSN 1090-6460(eISSN)
Примечания : Cited References: 26. - This study was supported by the Russian Foundation for Basic Research, project no. 16-33-00475 mol_a.
Предметные 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kim P. D., Khalyapin D. L., Turpanov I. A., Li L. A., Beten'kova A. Ya., Kan S. V.
Заглавие : Anomalous temperature dependence of the magnetoresistance in Co/Cu multilayers
Место публикации : Phys. Solid State: AMER INST PHYSICS, 2000. - Vol. 42, Is. 9. - P1688-1690. - ISSN 1063-7834, DOI 10.1134/1.1309452
Примечания : Cited References: 5
Предметные 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Myagkov V. G., Li L. A., Bykova L. E., Turpanov I. A., Kim P. D., Bondarenko G. V., Bondarenko G. N.
Заглавие : Self-propagating high-temperature synthesis in Pt/Co/MgO(001) epitaxial thin films
Место публикации : Phys. Solid State: AMER INST PHYSICS, 2000. - Vol. 42, Is. 5. - P968-972. - ISSN 1063-7834, DOI 10.1134/1.1131321
Примечания : Cited References: 26
Предметные 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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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Mankov Y. I., Maradudin A. A.
Заглавие : Wave spectrum of multilayers with finite thicknesses of interfaces
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2000. - Vol. 62, Is. 3. - P2181-2184. - ISSN 0163-1829, DOI 10.1103/PhysRevB.62.2181
Примечания : Cited References: 24
Предметные 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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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Mankov Y. I., Maradudin A. A.
Заглавие : The spectrum and damping of waves in partially randomized multilayers
Место публикации : J. Phys.: Condens. Matter: IOP PUBLISHING LTD, 1999. - Vol. 11, Is. 13. - P.2773-2790. - ISSN 0953-8984, DOI 10.1088/0953-8984/11/13/013
Примечания : Cited References: 24
Предметные 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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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Iskhakov R. S., Shepeta N. A., Stolyar S. V., Chekanova L. A., Yakovchuk V. Y.
Заглавие : Spin-wave resonance in Co/Pd magnetic multilayers and NiFe/Cu/NiFe three-layered films
Место публикации : JETP Letters. - 2006. - Vol. 83, Is. 1. - P.28-32. - ISSN 0021-3640, DOI 10.1134/S0021364006010073
Примечания : Cited References: 16
Предметные 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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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Mankov Y. I.
Заглавие : Effects of cross correlations between 1D and 3D inhomogeneities on the high-frequency susceptibility of superlattices
Место публикации : J. Exp. Theor. Phys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2006. - Vol. 102, Is. 4. - P625-635. - ISSN 1063-7761, DOI 10.1134/S106377610604011X
Примечания : Cited References: 29
Предметные рубрики: ELASTIC MEDIUM THEORY
3-DIMENSIONAL INHOMOGENEITIES
PERIODIC MULTILAYERS
SPIN-WAVES
LOCALIZATION
SPECTRUM
SYSTEMS
MEDIA
DISORDER
Ключевые слова (''Своб.индексиров.''): 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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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Mankov Y. I., Maradudin A. A.
Заглавие : Spectrum of waves in randomly modulated multilayers
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 1999. - Vol. 59, Is. 1. - P42-45. - ISSN 0163-1829, DOI 10.1103/PhysRevB.59.42
Примечания : Cited References: 14
Предметные 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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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Iskhakov R. S., Stolyar S. V., Yakovchuk V. Yu., Chizhik M. V., Pozdnyakov V. G., Vazhenina I. G.
Заглавие : Ferromagnetic and spin-wave resonance in FexNi1-x (0x1) films
Место публикации : TRENDS IN MAGNETISM. - 2011. - Vol. 168-169. - С. 93-96. - ISSN 10120394 (ISSN); 9783037850213 (ISBN), DOI 10.4028/www.scientific.net/SSP.168-169.93
Ключевые слова (''Своб.индексиров.''): 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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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Iskhakov R. S., Stolyar S. V., Yakovchuk V. Yu., Chizhik M. V.
Заглавие : Ferromagnetic and spin-wave resonance in exchange-coupled NiFe/Ag/NiFe three-layer structures
Место публикации : TRENDS IN MAGNETISM. - 2011. - Vol. 168-169. - С. 69-72. - ISSN 10120394 (ISSN); 9783037850213 (ISBN), DOI 10.4028/www.scientific.net/SSP.168-169.69
Ключевые слова (''Своб.индексиров.''): 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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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Patrin G. S., Shiyan Ya. G., Chzhan A. V., Podorozhnyak S. A.
Заглавие : Influence of interface anisotropy on ferromagnetic resonance in CoP/(NiP)am/CoP films
Коллективы : State order of the Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0011]
Место публикации : Mater. Res. Express. - 2021. - Vol. 8, Is. 5. - Ст.056102. - ISSN 2053-1591(eISSN), DOI 10.1088/2053-1591/abfcf5
Примечания : 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)
Предметные рубрики: MAGNETIC-ANISOTROPY
MULTILAYERS
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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18.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Ignatchenko V. A., Tsikalov D. S.
Заглавие : Spin waves in multilayers with different magnitudes of the magnetization, exchange, and anisotropy
Коллективы : Moscow International Symposium on Magnetism
Место публикации : Moscow Int. Symp. on Magnet. (MISM-2011): Book of abstracts. - 2011. - Ст.23PO-J-23. - P.463
Примечания : 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.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Melnikov, Grigory Yu., Vazhenina I. G., Iskhakov R. S., Boev N. M., Komogortsev S. V., Svalov, Andrey V., Kurlyandskaya, Galina V.
Заглавие : Magnetic properties of FeNi/Cu-based lithographic rectangular multilayered elements for magnetoimpedance applications
Место публикации : Sensors. - 2023. - Vol. 23, Is. 13. - Ст.6165. - ISSN 14248220 (eISSN), DOI 10.3390/s23136165
Примечания : 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
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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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Mankov Y. I.
Заглавие : Partial restoration of the wave spectrum of a superlattice due to cross correlations between one- and three-dimensional inhomogeneities
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2007. - Vol. 75, Is. 23. - Ст.235422. - ISSN 1098-0121, DOI 10.1103/PhysRevB.75.235422
Примечания : Cited References: 32
Предметные 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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