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Hypersonic magnetoelastic waves in inhomogeneous structures
Ultrasonics. 2022. Vol. 121. Article 106656.
Dai T., Kalyabin D., Nikitov S.
This work focuses on the propagation of surface magnetoelastic waves in a inhomogeneous structure containing ferromagnetic layer of smooth and slowly variable thickness. The dispersion relation of magnetoelastic waves and the wave attenuation due to the thickness variation in the studied structure were analytically obtained. We found that the magnetoelastic resonance frequency is changed at different positions in this structure. Then proposed the idea of modifying the magnetic field to control the magnetoelastic resonance region, and finally considered the possible applications of this structure for signal processing.
Bogdanova T. V., D. V. Kalyabin, A. R. Safin et al., Journal of Physics D: Applied Physics 2023 Vol. 56 No. 20 Article 205301
In this work we present a model explaining the properties of magnetoelastic waves propagation in the heterostructure containing an antiferromagnetic layer on a non-magnetic elastic substate. Horizontally polarized shear surface waves (SH-waves) propagating in thin film are Love waves. The dispersion characteristic of magnetoelastic waves in such structure was obtained, and the effect of variation ...
Added: January 31, 2024
Vilkov E. A., Byshevski-Konopko O. A., Kalyabin D. et al., Journal of Physics: Condensed Matter 2023 Vol. 35 No. 43 Article 435001
The spectral properties of gap electroacoustic waves in a PT-symmetric structure of piezoelectrics of symmetry class 6 mm separated by a gap are theoretically investigated. The spectra were calculated for lead germanate (non-zero transverse piezoactivity) and barium titanate (symmetry class 4 mm—zero transverse piezoactivity). It has been established that at a certain level of losses ...
Added: August 18, 2023
Barabanenkov M. Y., Kalyabin D., Nikitov S., Journal of Experimental and Theoretical Physics 2020 Vol. 130 No. 4 P. 549-554
Simultaneous quantum correlations between two spins in magnetic nanostructures are considered in the model of a linear chain of a finite number of atoms with exchange interaction between electron spins of neighboring atoms in the framework of the Heisenberg ferromagnetism theory. We assume that in the initial state, the spins of all chain atoms except the first ...
Added: October 26, 2021
Kalyabin D., Sadovnikov A. V., Beginin E. et al., Journal of Applied Physics 2019 Vol. 126 No. 17 Article 173907
We analytically investigate properties of magnetostatic surface spin wave propagation in irregular narrow ferromagnetic waveguides that are important elements of magnonic logic. The developed mathematical model is based on the Galerkin method. Theoretical investigations are proved by Brillouin light scattering spectroscopy. We demonstrate that the confinement effect in the narrow waveguide leads to multimode regime propagation, wave beats, and ...
Added: October 26, 2021
Bondarenko G.G., Shagaev V. V., Journal of Advanced Materials 2002 Vol. 9 (2) P. 167-172
Results are presented of investigations of the temperature dependence of the frequency of the surface magnetostatic waves in the cubic ferrite film—permanent magnet system. Analysis made of the conditions of thermal stability of the frequency and the essential requirements are proposed for the parameters of the film and the magnet. The results show that the ...
Added: November 29, 2013
Osokin S., Sharaevskaya A., Safin A. et al., Journal of Physics: Conference Series 2019 Vol. 1410 No. 1 Article 012189
We report on studies of spin waves properties in finite waveguides, formed by discrete arrays of ferromagnetic pillars. Dispersion characteristics of spin waves in such structures can be altered by changing the magnetization configurations of chain of pillars, thus creating the conditions for the bulk and edge modes to exist. Using theoretical and numerical methods we study the frequencies ...
Added: October 26, 2021
Бондаренко Г.Г., Шагаев В. В., Известия высших учебных заведений. Физика 2013 Т. 56 № 1/2 С. 13-22
The temperature characteristics of magnetostatic waves ((MSW) in monocrystalline ferrite films are investigated. The special attention is given to finding-out of the features connected with influence of a magnetic anisotropy field of ferrite on temperature drift of frequencies of MSW. The way of improvement of the temperature characteristics, based on a choice of optimum crystallographic ...
Added: November 6, 2013
Kamashev A. A., Garif’yanov N. N., Validov A. A. et al., Physical Review B: Condensed Matter and Materials Physics 2019 Vol. 100 P. 134511-1-134511-11
This article represents a mini review of our obtained results about of superconducting spin-valve effect in heterostructures with ferromagnetic Heusler alloy layers.
We have analysed and compared the superconducting properties of the spin-valve structures containing the Heusler alloy Co$_2$Cr$_{1-x}$Fe$_x$Al$_{y}$ as one
of two ferromagnetic (F1 or F2) layers of the F1/F2/S structure, where S stands for the ...
Added: October 25, 2019
Vilkov E., Byshevski-Konopko O., Stremoukhov P. A. et al., Ultrasonics 2022 Vol. 119 Article 106588
Dynamic interaction of acoustic and magnetic systems is of strong current interest, triggered by the promises of almost lossless new concepts of magnet-based information technology. In such concepts, a significant role is often given to domain walls (DW). Therefore, here we investigate how launching an acoustic shear wave, we can control the DW motion. Surprisingly, at sufficiently large ...
Added: October 26, 2021
Камашев А. А., Гарифьянов Н. Н., Валидов А. А. et al., Физика твердого тела 2022 Т. 64 № 9 С. 1201-1210
Проведен анализ транспортных свойств двух типов спиновых клапанов, в которых в качестве одного из двух ферромагнитных слоев в структурах Ф1/Ф2/C использовался сплав Гейслера Co_{2}Cr_{1−x}Fe_{x}Al_{y}. Слой сплава Гейслера был использован: 1) в качестве слабого ферромагнетика, в случае Ф2-слоя; 2) в качестве полуметалла, в случае Ф1-слоя. В первом случае, был получен большой классический эффект сверхпроводящего спинового клапана ...
Added: October 31, 2022
Bondarenko G.G., Shagaev V. V., Journal of Advanced Materials 2006 Vol. 13 No. 2 P. 118-124
Investigations were carried out into the temperature characteristics of the magnetostatic waves in single crystal ferrite films. The results, obtained in the geometric of inclined and tangential magnetisation, are compared. Special attention is they to the explanation of the special features, associated with the effect of the field of magnetic anisotropy of the ferrite on ...
Added: November 22, 2013
Rabinovich D. S., Bobkova I.V., Bobkov A. M. et al., Physical Review B: Condensed Matter and Materials Physics 2019 Vol. 99 No. 21 P. 214501-1-214501-12
We demonstrate that the hybrid structures consisting of a superconducting layer with an adjacent spin-textured ferromagnet demonstrate the variety of equilibrium magnetoelectric effects originating from coupling between the conduction electron spin and superconducting current. By deriving and solving the generalized Usadel equation, which takes into account the spin-filtering effect, we find that a supercurrent generates ...
Added: November 19, 2019
Curran P., Kim J., Satchell N. et al., Applied Physics Letters 2015 Vol. 107 P. 262602-262602
We demonstrate that the magnetic state of a superconducting spin valve, that is normally controlled with an external magnetic field, can also be manipulated by varying the temperature which increases the functionality and flexibility of such structures as switching elements. In this case, switching is driven by changes in the magnetostatic energy due to spontaneous ...
Added: February 22, 2017
Golovchanskiy I., Abramov N. N., Stolyarov V. S. et al., Advanced Science 2019 Vol. 6 No. 16 P. 1900435-1-1900435-8
In this work, a class of metamaterials is proposed on the basis of ferromagnet/superconductor hybridization for applications in magnonics. These metamaterials comprise of a ferromagnetic magnon medium that is coupled inductively to a superconducting periodic microstructure. Spectroscopy of magnetization dynamics in such hybrid evidences formation of areas in the medium with alternating dispersions for spin ...
Added: October 31, 2019
Popov P. A., Sharaevskaya A., Stognii A. I. et al., Journal of Communications Technology and Electronics, Pleiades Publishing 2019 Vol. 63 No. 12 P. 1431-1438
Propagation of volume spin magnetostatic waves in meander-shaped ferromagnetic films with vertically and horizontally coupled segments is studied. Conditions under which forward and backward volume magnetostatic waves simultaneously exist in the films are determined. Micromagnetic simulation and expansion in terms of plane waves are used to calculate internal effective magnetic fields and dispersion characteristics of the ...
Added: October 25, 2021
Г.Г. Бондаренко, Т.А. Кабанова, В.В. Рыбалко, М. : Юрайт, 2011
В учебнике рассмотрены характеристики металлических, полупроводниковых и диэлектрических материалов, являющиеся базовыми для разработки систем управления качеством промышленной продукции. Приведены сведения о строении, свойствах и методах получения материалов. Подробно рассмотрены аспекты, связанные с влиянием на рабочие характеристики материалов режимов их производства, хранения и эксплуатации (температура, механические, радиационные и иные виды воздействий).
Соответствует Федеральному государственному образовательному стандарту ВПО ...
Added: November 20, 2012
Бондаренко Г.Г., Шагаев В. В., Перспективные материалы 2001 № 2 С. 28-31
Исследовано влияние кубической анизотропии феррит-гранатовых пленок с ориентацией {100} на температурные зависимости частот поверхностных магнитостатических волн. Определены условия термостабильности частот в касательном намагничивающем поле. Установлено, что характер температурных зависимостей намагниченности насыщения и полей анизотропии в легированном феррите позволяет термостабилизировать частоты ниже 300 МГц ...
Added: November 29, 2013
Beginin E. N., Kalyabin D., Popov P. A. et al., , in : Three-Dimensional Magnonics: Layered, Micro- and Nanostructures. : Singapore : Jenny Stanford Publishing, 2019. Ch. 3. P. 67-104.
Magnonics, a research field that uses spin waves, collective excitations of ordered magnetic materials, or magnons (their quanta) as a tool for signal processing, communication, and computation, has rapidly grown during the past decade because of the low-energy consumption and potential compatibility with next-generation circuits beyond CMOS electronics. The interest in 3D magnonic nanostructures follows the ...
Added: October 26, 2021
Nashaat M., Bobkova I.V., Bobkov A. M. et al., Physical Review B: Condensed Matter and Materials Physics 2019 Vol. 100 No. 5 P. 054506-1-054506-7
Strong dependence of the Josephson energy on the magnetization orientation in Josephson junctions with ferromagnetic interlayers and spin-orbit coupling opens a way to control magnetization by Josephson current or Josephson phase. Here we investigate the perspectives of magnetization control in superconductor/ferromagnet/superconductor (S/F/S) Josephson junctions on the surface of a 3D topological insulator hosting Dirac quasiparticles. ...
Added: November 19, 2019
Katushkina O. A., Quemerais E., Izmodenov V.V. et al., JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 2017 Vol. 122 No. 11 P. 10921-10937
In this work, we present for the first time the Lyman α intensities measured by Voyager 1/UVS in 2003–2014 (at 90–130 AU from the Sun). During this period Voyager 1 measured the Lyman α emission in the outer heliosphere at an almost fixed direction close to the upwind (i.e.“ toward the interstellar flow). The data show an unexpected behavior in 2003–2009: the ...
Added: January 26, 2018
Aaij R., Abdelmotteleb A. S., Abellan Beteta C. et al., The European Physical Journal C - Particles and Fields 2023 Vol. 83 Article 543
https://link.springer.com/article/10.1140/epjc/s10052-023-11673-x#Abs1 ...
Added: December 4, 2023
Ружицкая Д. Д., САМОЙЛЕНКО А. А., Иванов А. Д. et al., Optoelectronics, Instrumentation and Data Processing 2017 Vol. 54 No. 1 P. 1-8
This paper presents an algorithm for processing the transmission spectra of whisperinggallery optical microcavities for use as a nanoparticle detector. The algorithm is based on the broadening of the microcavity resonance curve during precipitation of nanoparticles on the microcavity surface. Experimental results on the detection of particles are compared with Langmuir adsorption theory. The contribution ...
Added: May 25, 2018
М. : National Instruments Russia, 2017
Содержание сборника составляют доклады с результатами оригинальных исследований и технических решений, ранее не публиковавшиеся. Мы надеемся, что предлагаемый сборник окажется полезным для специалистов, работающих в различных областях науки и техники, для широкого круга преподавателей, аспирантов и студентов ВУЗов, а также для преподавателей средних школ и технических колледжей. ...
Added: May 10, 2017
Min Namkung, Younghun K., Scientific Reports 2018 Vol. 8 No. 1 P. 16915-1-16915-18
Sequential state discrimination is a strategy for quantum state discrimination of a sender’s quantum
states when N receivers are separately located. In this report, we propose optical designs that can
perform sequential state discrimination of two coherent states. For this purpose, we consider not
only binary phase-shifting-key (BPSK) signals but also general coherent states, with arbitrary prior
probabilities. Since ...
Added: November 16, 2020