Recent Trends in Microwave Magnetism and Superconductivity

Prokopenko, O. V.; Bozhko, Dmytro A.; Tyberkevych, Vasyl; Chumak, A. V.; Vasyuchka, Vitaliy I.; Serga, Alexander A.; Dzyapko, O.; Verba, Roman; Talalaevskij, A. V.; Slobodianiuk, D.V.; Kobljanskyj, Yu. V.; Moiseienko, Vladyslav A.; Sholom, S.; Malyshev, V. Yu.

doi:10.15407/ujpe64.10.888

Cited by 21 publications

(13 citation statements)

References 238 publications

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“…Provided the conditions → ∞ and = 1, the examined resonance structure is the plate of a real metal with finite lateral dimensions × and is located in the free space. This structure is the simplest case of the SEMWR on the basis of a conducting plate (film) with a finite thickness [6,8,9,12,13]. But if < ∞ and ≥ 1, the RFM-NMI-IM resonance structure can be identified with an SEMWR (layer of a real metal on a dielectric substrate) arranged on the wall surface in a rectangular waveguide (the ideal metal screen).…”

Section: Surface Magnon-plasmon-polaritons In the Real Ferromagnetic mentioning

confidence: 99%

“…Note that just such SEMWRs on the basis of a conducting film deposited onto a dielectric substrate are used in practice. For the efficient excitation of oscillations in the SEMWR, the latter is mounted inside a rectangular waveguide [6][7][8][9][10][11][12][13].…”

Section: Surface Magnon-plasmon-polaritons In the Real Ferromagnetic mentioning

confidence: 99%

“…A complete theoretical analysis of the microwave properties of the SEMWR is rather complicated [6][7][8]12,13]. Therefore, let us only consider the simplified model introduced in Section 3.…”

Section: Surface Magnon-plasmon-polaritons In the Real Ferromagnetic mentioning

confidence: 99%

“…is the relative dielectric permittivity of the medium: = ( ) for the real metal, = for the insulator, and → −∞ √ −1 for the ideal metal quency interval [6,7]. This system turned out convenient for developing various superconducting devices with Josephson junctions [8][9][10][11] (see also recent reviews [12,13]). The theoretical prediction of surface plasmons [14], the quasiparticles that describe collective oscillations of the electron density near the conducting-medium boundary, became a powerful impetus for intensifying the SEMW studies.…”

Section: Introductionmentioning

confidence: 99%

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Microwave Magnon-Plasmon-Polaritons in the Ferromagnetic Metal–Screened Insulator Structure

et al. 2020

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A possibility for surface magnon–plasmon–polaritons (SMPPs)–coupled microwave oscillations of magnetization, electron density, and electromagnetic field–to exist in real ferromagnetic metal–insulator–ideal non-magnetic metal structures has been analyzed theoretically. The developed theory predicts that the effective formation of SMPPs is possible only at certain values of the external dc magnetic field and must be accompanied by a shift in the characteristic frequency of the resonance plasmon-polariton systems. A theoretical estimation of the frequency shift for SMPPs in the structure “surface electromagnetic wave resonator made of permalloy–vacuum–ideal metal” gives a value of ±45 MHz for a resonator with a characteristic frequency of 10 GHz, which seems sufficient for this effect to be observed experimentally.

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Section: Surface Magnon-plasmon-polaritons In the Real Ferromagnetic mentioning

confidence: 99%

Section: Surface Magnon-plasmon-polaritons In the Real Ferromagnetic mentioning

confidence: 99%

Section: Surface Magnon-plasmon-polaritons In the Real Ferromagnetic mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microwave Magnon-Plasmon-Polaritons in the Ferromagnetic Metal–Screened Insulator Structure

et al. 2020

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“…Another fundamentally different approach to the excitation of spin waves utilizes parametric processes of interaction between the external electromagnetic pumping applied to a sample and spin waves [17,18]. This method allows the excitation of spin waves in a wide range of wavevectors.…”

Section: Introductionmentioning

confidence: 99%

Excitation of Ultrashort Spin Waves via Spin-Cherenkov Effect in Magnetic Waveguides

Slobodianiuk

2021

Ukr. J. Phys.

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The excitation of ultrashort wavelength spin waves via the spin-Cherenkov effect in magnetic waveguides is investigated via a micromagnetic modeling. The proposed excitation method is relatively simple and easily tunable. The excitation efficiency of the proposed scheme is obtained for different excitation pulse velocities and widths. A coupled waveguide system is also considered. In this case, the spin waves are excited in the first waveguide and then are transferred to the second one due to the dipolar coupling between waveguides. It is also shown that the excitation and transfer of excited spin waves have some limitations related to the dipolar coupling mechanism between the waveguides.

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Low‐Damping Spin‐Wave Transmission in YIG/Pt‐Interfaced Structures

Serha

Bozhko

Agrawal

et al. 2022

Adv Materials Inter

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Magnetic heterostructures consisting of single‐crystal yttrium iron garnet (YIG) films coated with platinum are widely used in spin‐wave experiments related to spintronic phenomena such as the spin‐transfer‐torque, spin‐Hall, and spin‐Seebeck effects. However, spin waves in YIG/Pt bilayers experience much stronger attenuation than in bare YIG films. For micrometer‐thick YIG films, this effect is caused by microwave eddy currents in the Pt layer. This paper reports that by employing an excitation configuration in which the YIG film faces the metal plate of the microstrip antenna structure, the eddy currents in Pt are shunted and the transmission of the Damon–Eschbach surface spin wave is greatly improved. The reduction in spin‐wave attenuation persists even when the Pt coating is separated from the ground plate by a thin dielectric layer. This makes the proposed excitation configuration suitable for injection of an electric current into the Pt layer and thus for application in spintronics devices. The theoretical analysis carried out within the framework of the electrodynamic approach reveals how the platinum nanolayer and the nearby highly conductive metal plate affect the group velocity and the lifetime of the Damon–Eshbach surface wave and how these two wavelength‐dependent quantities determine the transmission characteristics of the spin‐wave device.

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Recent Trends in Microwave Magnetism and Superconductivity

Cited by 21 publications

References 238 publications

Microwave Magnon-Plasmon-Polaritons in the Ferromagnetic Metal–Screened Insulator Structure

Microwave Magnon-Plasmon-Polaritons in the Ferromagnetic Metal–Screened Insulator Structure

Excitation of Ultrashort Spin Waves via Spin-Cherenkov Effect in Magnetic Waveguides

Low‐Damping Spin‐Wave Transmission in YIG/Pt‐Interfaced Structures

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