Enhanced Nonreciprocity of Magnetostatic Surface Waves in Yttrium-Iron-Garnet Films Deposited on Silicon Substrates by Ion-Beam Evaporation

Sakharov, V. K.; Khivintsev, Yu. V.; Vysotskiǐ, S. L.; Stognij, A. I.; Filimonov, Yu. A.

doi:10.1109/lmag.2017.2659638

Cited by 17 publications

(12 citation statements)

References 34 publications

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“…34,35 Moreover, the finite thickness of magnetic film structures leads to quantization and thereby appearance of several dispersion branches for spin waves (of any sort) propagating in the film plane. 36,37 The same is true for the effect of the lateral quantization in waveguides of finite width. 38,39 The dispersion character is different for each branch and depends on the film thickness, which suggests the continuous variation of the thickness and / or width as a means through which to control the spin wave propagation in patterned magnetic structures, 40,41 and more generally, the importance of the sample geometry in problems of the graded-index magnonics.…”

Section: Introductionmentioning

confidence: 82%

Mapping the magnonic landscape in patterned magnetic structures

2017

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We report the development of a hybrid numerical / analytical model capable of mapping the spatially-varying distributions of the local ferromagnetic resonance (FMR) frequency and dynamic magnetic susceptibility in a wide class of patterned and compositionally modulated magnetic structures. Starting from the numerically simulated static micromagnetic state, the magnetization is deliberately deflected orthogonally to its equilibrium orientation, and the magnetic fields generated in response to this deflection are evaluated using micromagnetic software. This allows us to calculate the elements of the effective demagnetizing tensor, which are then used within a linear analytical formalism to map the local FMR frequency and dynamic magnetic susceptibility. To illustrate the typical results that one can obtain using this model, we analyze three micromagnetic systems boasting non-uniformity in either one or two dimensions, and successfully explain the spin-wave emission observed in each case, demonstrating the ubiquitous nature of the Schlömann excitation mechanism underpinning the observations. Finally, the developed model of local FMR frequency could be used to explain how spin waves could be confined and steered using magnetic non-uniformities of various origins, rendering it a powerful tool for the mapping of the graded magnonic index in magnonics.

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Section: Introductionmentioning

confidence: 82%

Mapping the magnonic landscape in patterned magnetic structures

2017

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“…Пленки ЖИГ, являясь диэлектриком, позволяют размещать микроантенны СВ непосредственно на поверхности, что может обеспечить возбуждение СВ с λ ≤ 100 nm. К этому следует добавить, что в последнее время достигнут существенный прогресс в развитии вакуумных методов получения пленок ЖИГ на различных подложках [32][33][34] и литографических методов микроструктуризации таких пленок [34].…”

Section: заключениеunclassified

Интерференция Спиновых Волн В Решетках Из Микроволноводов На Основе Пленок Железо-Иттриевого Граната

Хивинцев¹,

Кожевников²,

Сахаров³

et al. 2019

Журнал Технической Физики

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Effects of propagation and interference of spin waves in an eight-port magnonic structure in the form of a 2 × 2 array of microwaveguides based on yttrium-iron garnet films with microantennas placed at the waveguide ends are studied experimentally and numerically. It is shown that conditions for a constructive and destructive interference of spin waves, which is necessary for creating spin-wave logic devices, can be implemented at output transducers by changing the phase of input signals.

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“…что при выбранных выше параметрах для волноводов d 1 = 0.6 µm и d 2 = 0.45 µm дает значение L ≈ 0.029 cm, которое отличается от расчетов с помощью (1) на 14%. Отметим, что в субмикронных пленках ЖИГ могут эффективно возбуждаться и приниматься ПМСВ с волновыми числами q ≈ 10 3 −10 4 cm −1 [15][16][17]. Таким образом, исследовано влияние изгибных деформаций на результат интерференции ПМСВ в ступенчатом волноводе на основе пленки ЖИГ, сформированным травлением части пленки ЖИГ по толщине и формированием ступеньки по всей длине волновода.…”

Section: поступило в редакцию 16 октября 2018 г в окончательной редаunclassified

Электрически Управляемый Логический Ключ На Основе Ступенчатого Волновода Из Пленки Железо-Иттриевого Граната И Пьезоэлектрического Актюатора

Высоцкий¹,

Хивинцев²,

Сахаров³

et al. 2019

Журнал Технической Физики

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The possibility of performing the function of a logical key by a device based on a waveguide of spin waves containing two channels differing in the thickness of a ferrite film is shown. To switch the key state, the dependence of the type of interference (constructive or destructive) on the output converter common to both channels on the degree of waveguide deformation under the action of an electrically controlled actuator is used.

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Enhanced Nonreciprocity of Magnetostatic Surface Waves in Yttrium-Iron-Garnet Films Deposited on Silicon Substrates by Ion-Beam Evaporation

Cited by 17 publications

References 34 publications

Mapping the magnonic landscape in patterned magnetic structures

Mapping the magnonic landscape in patterned magnetic structures

Интерференция Спиновых Волн В Решетках Из Микроволноводов На Основе Пленок Железо-Иттриевого Граната

Электрически Управляемый Логический Ключ На Основе Ступенчатого Волновода Из Пленки Железо-Иттриевого Граната И Пьезоэлектрического Актюатора

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