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Journal articles on the topic 'Magnonic'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 July 2024

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1

Roxburgh, Alison, and Ezio Iacocca. "Nano-Magnonic Crystals by Periodic Modulation of Magnetic Parameters." Magnetochemistry 10, no. 3 (2024): 14. http://dx.doi.org/10.3390/magnetochemistry10030014.

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Magnonic crystals are metamaterials whose magnon behavior can be controlled for specific applications. To date, most magnonic crystals have relied on nanopatterning and magnetostatic waves. Here, we analytically and numerically investigate magnonic crystals defined by modulating magnetic parameters at the nanoscale, which predominantly act on exchange-dominated, sub-100 nm magnons. We focus on two cases: the variation in the exchange constant, and the DMI constant. We found that the exchange constant modulation gives rise to modest band gaps in the forward volume wave and surface wave configur
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2

Yang, Lei, Bao Wang, and Hao Xiong. "Generation of Second-Order Sideband through Nonlinear Magnetostrictive Interaction." Photonics 10, no. 8 (2023): 886. http://dx.doi.org/10.3390/photonics10080886.

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Nonlinear interaction between the magnon mode and the mechanical mode in a magnomechanical system is treated analytically where the magnon mode is coherently driven by a bichromatic microwave drive field consisting of a strong pumping field and a weak probe field and that works within a perturbative regime. Using experimentally achievable parameters, we show that the magnonic second-order sideband is generated and can be considerably enhanced by increasing the power of the pumping field. The suppression of the magnonic second-order sideband generation at the resonance point is discussed. Furth
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3

Yuan, Shaohua, Chaowei Sui, Jiyong Kang, and Chenglong Jia. "Electric readout of Bloch sphere spanned by twisted magnon modes." Applied Physics Letters 120, no. 13 (2022): 132402. http://dx.doi.org/10.1063/5.0085775.

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We present a magnonic type of Bloch sphere based on twisted spin-wave (magnon) eigenmodes with opposite intrinsic orbital angular momentum, which is topology-protected and damping-resistant. Taking advantage of the release of the chiral degeneracy of magnons by dynamic dipolar interactions and/or interfacial Dzyaloshinskii–Moriya interactions in ferromagnetic nanodisks, we show how these magnonic “qubit” states can be precisely launched and electrically detected through combined spin pumping and inverse spin Hall effect. The experimental feasibility is verified using full-edged numerical micro
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4

Watanabe, Sho, Vinayak S. Bhat, Korbinian Baumgaertl, Mohammad Hamdi, and Dirk Grundler. "Direct observation of multiband transport in magnonic Penrose quasicrystals via broadband and phase-resolved spectroscopy." Science Advances 7, no. 35 (2021): eabg3771. http://dx.doi.org/10.1126/sciadv.abg3771.

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Quasicrystals are aperiodically ordered structures with unconventional rotational symmetry. Their peculiar features have been explored in photonics to engineer bandgaps for light waves. Magnons (spin waves) are collective spin excitations in magnetically ordered materials enabling non–charge-based information transmission in nanoscale devices. Here, we report on a two-dimensional magnonic quasicrystal formed by aperiodically arranged nanotroughs in ferrimagnetic yttrium iron garnet. By phase-resolved spin wave imaging at gigahertz frequencies, multidirectional emission from a microwave antenna
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5

Zhuo, Fengjun, Hang Li, and Aurélien Manchon. "Topological thermal Hall effect and magnonic edge states in kagome ferromagnets with bond anisotropy." New Journal of Physics 24, no. 2 (2022): 023033. http://dx.doi.org/10.1088/1367-2630/ac51a8.

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Abstract The magnon band topology due to the Dzyaloshinskii–Moriya interaction (DMI) and its relevant topological thermal Hall effect has been extensively studied in kagome lattice magnets. In this theoretical investigation, we report a new mechanism for phase transitions between topological phases of magnons in kagome ferromagnets by tuning the anisotropic nearest-neighbor ferromagnetic interaction and DMI. Using the linear spin-wave theory, we calculate the Chern number and thermal Hall conductivity of magnons in low temperature regime. We show the magnon band structures and magnonic edge st
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6

Grachev A. A., Mruczkiewicz M., Beginin E. N., and Sadovnikov A. V. "Influence of elastic strains on the dipole spin wave spectrum in the lateral system of magnonic crystals with a piezoelectric layer." Physics of the Solid State 64, no. 9 (2022): 1331. http://dx.doi.org/10.21883/pss.2022.09.54176.45hh.

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In this work, we will reveal the regularities in the control of the dipole spin-wava spectra of in lateral heterostructures formed from two magnonic crystals with a piezoelectric layer placed on one of them. The electric field control of the spatial and transfer characteristics of dipole spin waves in lateral heterostructures is shown. Based on the finite element method, the influence of distributed elastic deformations on the magnitudes of internal magnetic fields in magnonic crystals is evaluated. Based on the results of numerical simulations, a physical interpretation of the transformation
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7

Fu, Yan, Lin Yang, Man Cao, and Cui Kong. "Magnon-mediated multi-channel high-order sideband generation in cavity magnonics." Laser Physics Letters 19, no. 12 (2022): 123001. http://dx.doi.org/10.1088/1612-202x/ac9ce3.

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Abstract We propose a scheme to describe magnon-mediated multi-channel high-order sideband generation in a cross cavity magnonic system. The high-order sideband generation is composed of equally spaced discrete output frequency components, which is essential tools for light communication, precision metrology, timing and spectroscopy. Beyond the generally linearized description by using the perturbative method, we deal with the Heisenberg–Langevin equations in the non-perturbative regime to obtain the output spectrum of high-order sidebands. Unlike conventional methods of using power that requi
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8

Wang, Zhenyu, Weiwei Bao, Yunshan Cao, and Peng Yan. "All-magnonic Stern–Gerlach effect in antiferromagnets." Applied Physics Letters 120, no. 24 (2022): 242403. http://dx.doi.org/10.1063/5.0096968.

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The Stern–Gerlach (SG) effect is well known as the spin-dependent splitting of a beam of atoms carrying magnetic moments by a magnetic-field gradient, leading to the concept of electron spin. Antiferromagnets can accommodate two magnon modes with opposite spin polarizations, which is equivalent to the spin property of electrons. Here, we propose an all-magnonic SG effect in an antiferromagnetic magnonic system, where a linearly polarized spin-wave beam is deflected by a straight Dzyaloshinskii–Moriya interaction (DMI) interface into two opposite polarized spin-wave beams propagating in two dis
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9

Prokopenko, O. V., D. A. Bozhko, V. S. Tyberkevych, et al. "Recent Trends in Microwave Magnetism and Superconductivity." Ukrainian Journal of Physics 64, no. 10 (2019): 888. http://dx.doi.org/10.15407/ujpe64.10.888.

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We review the development trends in microwave magnetism and superconductivity over the last five decades. The review contains the key results of recent studies related to the promising areas of modern magnetism and applied physics – spintronics, magnonics, magnon caloritronics, physics of magnonic crystals, spin-wave logic, and the development of novel micro- and nano-scale magnetic devices. The main achievements in these fields of physics are summarized and generalized.
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10

Martyshkin A.A., Beginin E. N., and Sadovnikov A.V. "Frequency-selective propagation of spin waves in a three-dimensional magnon T-shaped splitter." Technical Physics 92, no. 13 (2022): 2114. http://dx.doi.org/10.21883/tp.2022.13.52231.134-21.

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Using numerical and experimental methods, the mechanism of control of the transmission of a spin-wave signal in a three-dimensional magnon splitter, formed by an orthogonal junction of magnetic strips of yttrium iron garnet, has been investigated. It is shown that by variation the size of the air gap between the spin-waveguide sections, it is possible to control the selection of the signal propagating in the output sections of the structure. From an applied point of view, the results obtained can be used to create an interconnection element in multilevel magnon information processing devices f
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11

Zhang, Yuelin, Jilei Chen, Jinxing Zhang, and Haiming Yu. "Oxide magnonics: Spin waves in functional magnetic oxides." Applied Physics Reviews 9, no. 4 (2022): 041312. http://dx.doi.org/10.1063/5.0112794.

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Spin waves or their quanta magnons are collective excitations in magnetically ordered materials. Magnonics have recently attracted tremendous interest for building next-generation nanoscale devices and circuits with low-power consumption. Oxide materials provide an excellent platform for achieving highly efficient spin-wave excitation and transmission for magnonic applications with versatile functionalities. In this article, we review some recent advances for oxide-based magnonics, including both magnetic oxides for hosting spin waves and non-magnetic oxides for manipulating spin waves. First,
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12

Zhuo, Fengjun, Hang Li, Zhenxiang Cheng, and Aurélien Manchon. "Magnonic Metamaterials for Spin-Wave Control with Inhomogeneous Dzyaloshinskii–Moriya Interactions." Nanomaterials 12, no. 7 (2022): 1159. http://dx.doi.org/10.3390/nano12071159.

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A magnonic metamaterial in the presence of spatially modulated Dzyaloshinskii–Moriya interaction is theoretically proposed and demonstrated by micromagnetic simulations. By analogy to the fields of photonics, we first establish magnonic Snell’s law for spin waves passing through an interface between two media with different dispersion relations due to different Dzyaloshinskii–Moriya interactions. Based on magnonic Snell’s law, we find that spin waves can experience total internal reflection. The critical angle of total internal reflection is strongly dependent on the sign and strength of Dzyal
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13

Liu, Haoliang, Dali Sun, Chuang Zhang, Matthew Groesbeck, Ryan Mclaughlin, and Z. Valy Vardeny. "Observation of exceptional points in magnonic parity-time symmetry devices." Science Advances 5, no. 11 (2019): eaax9144. http://dx.doi.org/10.1126/sciadv.aax9144.

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Non-Hermitian Hamiltonians may still have real eigenvalues, provided that a combined parity-time (ƤƮ) symmetry exists. The prospect of ƤƮ symmetry has been explored in several physical systems such as photonics, acoustics, and electronics. The eigenvalues in these systems undergo a transition from real to complex at exceptional points (EPs), where the ƤƮ symmetry is broken. Here, we demonstrate the existence of EP in magnonic devices composed of two coupled magnets with different magnon losses. The eigenfrequencies and damping rates change from crossing to anti-crossing at the EP when the coup
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14

Hurst, Hilary M., and Benedetta Flebus. "Non-Hermitian physics in magnetic systems." Journal of Applied Physics 132, no. 22 (2022): 220902. http://dx.doi.org/10.1063/5.0124841.

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Non-Hermitian Hamiltonians provide an alternative perspective on the dynamics of quantum and classical systems coupled non-conservatively to an environment. Once primarily an interest of mathematical physicists, the theory of non-Hermitian Hamiltonians has solidified and expanded to describe various physically observable phenomena in optical, photonic, and condensed matter systems. Self-consistent descriptions of quantum mechanics based on non-Hermitian Hamiltonians have been developed and continue to be refined. In particular, non-Hermitian frameworks to describe magnonic and hybrid magnonic
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15

Lisenkov, Ivan, Dmitry Kalyabin, and S. Nikitov. "Edge Rotational Magnons in Magnonic Crystals." Solid State Phenomena 233-234 (July 2015): 38–42. http://dx.doi.org/10.4028/www.scientific.net/ssp.233-234.38.

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It is predicted that in 2D magnonic crystals the edge rotational magnons of forward vol-ume magnetostatic spin waves can exist. Under certain conditions locally bounded magnons may ap-pear within the crystal consisting of the ferromagnetic matrix and periodically inserted magnetic/non-magnetic inclusions. It is also shown that interplay of different resonances in 2D magnonic crystalmay provide conditions for spin wave modes existence with negative group velocity.
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16

Khutieva A. B., Akimova B. R., Beginin E. N., and Sadovnikov A. V. "Control of the direction of propagation of spin waves in an ensemble of laterally and vertically connected ferrite microstrips." Physics of the Solid State 64, no. 9 (2022): 1279. http://dx.doi.org/10.21883/pss.2022.09.54166.20hh.

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The possibility of controlling the direction of propagation of spin waves in an ensemble of laterally and vertically connected microstrips of iron-yttrium garnet (YIG) is shown by numerical modeling. Using the finite element method, the magnitude of the coupling length of spin waves in lateral and vertical geometries was calculated. The numerical value of the spin wave coupling coefficients was found by the finite element method as a result of solving a system of Maxwell equations with a magnetic permeability tensor obtained from the linearization of the Landau-Lifshitz equation. By integratin
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17

Odintsov S.A., Ptashenko A.S., Lock E.H., Beginin E.N., and Sadovnikov A.V. "Propagation of nonreciprocal spin waves in a multilayer magnonic crystal." Physics of the Solid State 65, no. 6 (2023): 959. http://dx.doi.org/10.21883/pss.2023.06.56108.18h.

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The possibility of frequency-selective propagation of spin waves in a magnonic microwave guide with a magnonic crystal consisting of two layers with different values of the saturation magnetization in the layers is demonstrated. It is shown that multimode propagation of spin waves can occur inside a two-layer structure in two frequency ranges, while the presence of a magnonic crystal on the surface of the structure leads to the manifestation of a band gap in one of the frequency ranges. At the same time, the process of propagation of a spin-wave signal is accompanied by a strong nonreciprocity
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18

Martyshkin A.A., Beginin E. N., Sheshukova S.E., Sharaevsky Yu. P., Nikitov S.A., and Sadovnikov A.V. "Peculiarities of the formation of band gaps in mul-timode regime of spin waves propagation in mag-nonic crystals." Physics of the Solid State 64, no. 9 (2022): 1269. http://dx.doi.org/10.21883/pss.2022.09.54164.17hh.

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The dynamics of spin waves during their multimode propagation in a magnonic crystal, which is an irregular narrow ferrite waveguide with periodic boundary modulation, has been studied by the method of Mandelstam--Brillouin spectroscopy. The transformation of the mode composition of spin waves propagating in an irregular ferrite waveguide is shown. The space-time dynamics of spin waves and the characteristics of the band gaps of a magnonic crystal are experimentally studied, and the possibility of controlling the frequency-selective properties of such a structure is shown. By excitation of a su
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19

Fan, Zhiyuan, Xuan Zuo, Hang Qian, and Jie Li. "Proposal for Optomagnonic Teleportation and Entanglement Swapping." Photonics 10, no. 7 (2023): 739. http://dx.doi.org/10.3390/photonics10070739.

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A protocol for realizing discrete-variable quantum teleportation in an optomagnonic system is provided. Using optical pulses, an arbitrary photonic qubit state encoded in orthogonal polarizations is transferred onto the joint state of a pair of magnonic oscillators in two macroscopic yttrium-iron-garnet (YIG) spheres that are placed in an optical interferometer. We further show that optomagnonic entanglement swapping can be realized in an extended dual-interferometer configuration with a joint Bell-state detection. Consequently, magnon Bell states are prepared. We analyze the effect of the res
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20

Lamb-Camarena, Sebastian, Fabrizio Porrati, Alexander Kuprava, et al. "3D Magnonic Conduits by Direct Write Nanofabrication." Nanomaterials 13, no. 13 (2023): 1926. http://dx.doi.org/10.3390/nano13131926.

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Magnonics is a rapidly developing domain of nanomagnetism, with application potential in information processing systems. Realisation of this potential and miniaturisation of magnonic circuits requires their extension into the third dimension. However, so far, magnonic conduits are largely limited to thin films and 2D structures. Here, we introduce 3D magnonic nanoconduits fabricated by the direct write technique of focused-electron-beam induced deposition (FEBID). We use Brillouin light scattering (BLS) spectroscopy to demonstrate significant qualitative differences in spatially resolved spin-
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21

Schulz, Frank, Felix Groß, Johannes Förster, et al. "Realization of a magnonic analog adder with frequency-division multiplexing." AIP Advances 13, no. 1 (2023): 015115. http://dx.doi.org/10.1063/5.0120826.

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Being able to accurately control the interaction of spin waves is a crucial challenge for magnonics in order to offer an alternative wave-based computing scheme for certain technological applications. Especially in neural networks and neuromorphic computing, wave-based approaches can offer significant advantages over traditional CMOS-based binary computing schemes with regard to performance and power consumption. In this work, we demonstrate precise modulation of phase- and amplitude-sensitive interference of coherent spin waves in a yttrium–iron–garnet based magnonic analog adder device, whil
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22

Köbler, U. "Bosonic and magnonic magnon dispersions." Journal of Magnetism and Magnetic Materials 502 (May 2020): 166533. http://dx.doi.org/10.1016/j.jmmm.2020.166533.

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23

Lisenkov, Ivan, Dmitry Kalyabin, and Sergey Nikitov. "Edge rotational magnons in magnonic crystals." Applied Physics Letters 103, no. 20 (2013): 202402. http://dx.doi.org/10.1063/1.4829917.

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24

Menezes, Raí M., Denis Šabani, Cihan Bacaksiz, Clécio C. de Souza Silva, and Milorad V. Milošević. "Tailoring high-frequency magnonics in monolayer chromium trihalides." 2D Materials 9, no. 2 (2022): 025021. http://dx.doi.org/10.1088/2053-1583/ac5bf3.

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Abstract Monolayer chromium-trihalides, the archetypal two-dimensional (2D) magnetic materials, are readily suggested as a promising platform for high-frequency magnonics. Here we detail the spin-wave properties of monolayer CrBr3 and CrI3, using spin-dynamics simulations parametrized from the first principles. We reveal that spin-wave dispersion can be tuned in a broad range of frequencies by strain, paving the way towards flexo-magnonic applications. We further show that ever-present halide vacancies in these monolayers host sufficiently strong Dzyaloshinskii-Moriya interaction to scatter sp
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Gaur, Samanvaya S., and Ernesto E. Marinero. "Emergent Magnonic Materials: Challenges and Opportunities." Materials 16, no. 18 (2023): 6299. http://dx.doi.org/10.3390/ma16186299.

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Advances in information technology are hindered by energy dissipation from Joule losses associated with charge transport. In contrast, the process of information based on spin waves propagation (magnons) in magnetic materials causes less dissipation. Low damping of spin wave excitations is essential to control the propagation length of magnons. Ferrimagnetic Y3Fe5O12 garnets (YIG) exhibit the lowest magnetic damping constants. However, to attain the lowest damping constant, epitaxial growth of YIG on single crystal substrates of Gd3Ga5O12 at elevated temperatures is required, which hinders the
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26

Golovchanskiy, Igor A., Nikolay N. Abramov, Vasily S. Stolyarov, et al. "Ultrastrong photon-to-magnon coupling in multilayered heterostructures involving superconducting coherence via ferromagnetic layers." Science Advances 7, no. 25 (2021): eabe8638. http://dx.doi.org/10.1126/sciadv.abe8638.

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The critical step for future quantum industry demands realization of efficient information exchange between different-platform hybrid systems that can harvest advantages of distinct platforms. The major restraining factor for the progress in certain hybrids is weak coupling strength between the elemental particles. In particular, this restriction impedes a promising field of hybrid magnonics. In this work, we propose an approach for realization of on-chip hybrid magnonic systems with unprecedentedly strong coupling parameters. The approach is based on multilayered microstructures containing su
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Cheng, C., Z. R. Yan, Y. W. Xing, et al. "Magnon flatband effect in antiferromagnetically coupled magnonic crystals." Applied Physics Letters 122, no. 8 (2023): 082401. http://dx.doi.org/10.1063/5.0137520.

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The dispersion relationships in antiferromagnetically coupled magnonic crystals (MCs) were investigated using micromagnetic simulations. In contrast to traditional MCs, antiferromagnetically coupled MCs have two oppositely polarized modes, enabling the realization of synthetic ferrimagnetic and synthetic antiferromagnetic MCs. The magnon flatband effect was discovered, and a large bandgap of the dispersion relation was also realized in this structure. We found that the center frequency and width of the dispersion bands with a specific polarization were influenced by the thickness and thickness
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28

Грачев, А. А., M. Mruczkiewicz, Е. Н. Бегинин та А. В. Садовников. "Влияние упругих деформаций на спектр дипольных спиновых волн в латеральной системе магнонных кристаллов с пьезоэлектрическим слоем". Физика твердого тела 64, № 9 (2022): 1345. http://dx.doi.org/10.21883/ftt.2022.09.52831.45hh.

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In this work, we will reveal the regularities in the control of the dipole spin-wava spectra of in lateral heterostructures formed from two magnonic crystals with a piezoelectric layer placed on one of them. The electric field control of the spatial and transfer characteristics of dipole spin waves in lateral heterostructures is shown. Based on the finite element method, the influence of distributed elastic deformations on the magnitudes of internal magnetic fields in magnonic crystals is evaluated. Based on the results of numerical simulations, a physical interpretation of the transformation
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29

Kondrashov, Alexandr V., and Alexey B. Ustinov. "Self-generation of Möbius solitons and chaotic waveforms in magnonic-optoelectronic oscillators under simultaneous action of optic and magnonic nonlinearities." Journal of Applied Physics 132, no. 17 (2022): 173907. http://dx.doi.org/10.1063/5.0123442.

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Self-generation of microwave nonlinear waveforms in the magnonic-optoelectronic oscillator (MOEO) was investigated. Nonlinear dynamics of the MOEO was due to both optical and magnonic paths of the oscillator circuit. Four-magnon parametric interactions in the magnonic path and cosine transfer function of the electro-optical modulator caused double nonlinearity of the MOEO. Gain coefficient was used as a control parameter. We found that during a route from regular to chaotic dynamics, the oscillator generates two unusual waveforms: symmetry-breaking soliton-like modes of Möbius type and periodi
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30

Barbhuiya, Sabur A., and Aranya B. Bhattacherjee. "Magnomechanically induced absorption and switching properties in a dispersively coupled magnon-qubit system." Journal of Applied Physics 132, no. 12 (2022): 123104. http://dx.doi.org/10.1063/5.0111516.

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We theoretically study the non-linear behavior of a hybrid quantum magnomechanical system, where the system consisting of a superconducting qubit couples dispersively to a magnon–phonon mode. The magnetic excitations (magnons) can interact with the mechanical vibrations of the system via a magnomechanical interaction, which results in the formation of magnomechanically induced transparency in the output of the system. We investigate the system’s switching behavior in the dressed qubit anharmonicity of the system and shows the sharp bistable frequency switching of the magnon–excitons. The propo
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31

Li, Jianhua, Wen-Bing Xu, Wen-Cheng Yue, et al. "Writable spin wave nanochannels in an artificial-spin-ice-mediated ferromagnetic thin film." Applied Physics Letters 120, no. 13 (2022): 132404. http://dx.doi.org/10.1063/5.0085455.

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Magnonics, which employs spin-waves to transmit and process information, is a promising venue for low-power data processing. One of the major challenges is the local control of the spin-wave propagation path. Here, we introduce the concept of writable magnonics by taking advantage of the highly flexible reconfigurability and rewritability of artificial spin ice systems. Using micromagnetic simulations, we show that globally switchable spin-wave propagation and locally writable spin-wave nanochannels can be realized in a ferromagnetic thin film underlying an artificial pinwheel spin ice. The re
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32

Zheng, Shasha, Zhenyu Wang, Yipu Wang, et al. "Tutorial: Nonlinear magnonics." Journal of Applied Physics 134, no. 15 (2023). http://dx.doi.org/10.1063/5.0152543.

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Nonlinear magnonics studies the nonlinear interaction between magnons and other physical platforms (phonon, photon, qubit, spin texture) to generate novel magnon states for information processing. In this Tutorial, we first introduce the nonlinear interactions of magnons in pure magnetic systems and hybrid magnon–phonon and magnon–photon systems. Then, we show how these nonlinear interactions can generate exotic magnonic phenomena. In the classical regime, we will cover the parametric excitation of magnons, bistability and multistability, and magnonic frequency comb. In the quantum regime, we
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33

Wang Zhen-Yu, Li Zhi-Xiong, Yuan Huai-Yang, Zhang Zhi-Zhi, Cao Yun-Shan, and Yan Peng. "Topological states and Quantum effects in magnonics." Acta Physica Sinica, 2023, 0. http://dx.doi.org/10.7498/aps.72.20221997.

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In recent years, with the rapid development of the emerging technologies including the Internet of Things, cloud computing, big data, artificial intelligence and 5G, higher computing power is required. Traditional semiconductor devices are confronting the huge challenges brought by device miniaturization, energy consumption, heat dissipation, and so on. Moore.s law which succeeds in guiding downscaling and upgrading of microelectronics is nearing its end. A new information carrier is urgent need for information transmission and processing instead of electrons. Spin waves are collective excitat
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34

Ge, Xu, Roman Verba, Philipp Pirro, Andrii V. Chumak, and Qi Wang. "Nanoscaled magnon transistor based on stimulated three-magnon splitting." Applied Physics Letters 124, no. 12 (2024). http://dx.doi.org/10.1063/5.0189619.

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Magnonics is a rapidly growing field, attracting much attention for its potential applications in data transport and processing. Many individual magnonic devices have been proposed and realized in laboratories. However, an integrated magnonic circuit with several separate magnonic elements has yet not been reported due to the lack of a magnonic amplifier to compensate for transport and processing losses. The magnon transistor reported in Chumak et al. [Nat. Commun. 5, 4700 (2014)] could only achieve a gain of 1.8, which is insufficient in many practical cases. Here, we use the stimulated three
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Ustinov, Alexey B., Andrei V. Drozdovskii, Andrey A. Nikitin, et al. "Dynamic electromagnonic crystal based on artificial multiferroic heterostructure." Communications Physics 2, no. 1 (2019). http://dx.doi.org/10.1038/s42005-019-0240-7.

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Abstract One of the main challenges for the modern magnonics, which, as opposed to the conventional electronics, operates with quanta of spin waves in magnetically ordered materials—magnons—is energy efficient control of magnon transport on small time and space scales. The magnon propagation in a time-dependent periodic spatial potentials—dynamic magnonic crystals—paves a way to this aim. To date, dynamic manipulation of the magnonic crystals has been realized with electric current and optic control influence. However, both approaches show limited potential for reduction in energy consumption
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Furukawa, Ryo, Shoki Nezu, Takuro Eguchi, and Koji Sekiguchi. "Mode-dependent magnonic noise." NPG Asia Materials 16, no. 1 (2024). http://dx.doi.org/10.1038/s41427-023-00522-8.

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AbstractThe performance of magnonic devices such as converters, switches, and multiplexers greatly depends on magnonic noise. While a peculiar discrete magnonic noise has been previously reported, the sources of underlying magnon dynamics occurring in high-magnon density conditions have not been clarified. Here, zero-span measurements of the spectrum analyzer were recorded to accurately detect magnonic noise as a fluctuation of the spin-wave amplitude. The results of low-frequency magnonic noise demonstrated a spin-wave mode dependency, indicating the existence of a peculiar magnon surface sta
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Kainuma, Ryo, Keita Matsumoto, Toshimitsu Ito, and Takuya Satoh. "Sub-millimeter propagation of antiferromagnetic magnons via magnon-photon coupling." npj Spintronics 2, no. 1 (2024). http://dx.doi.org/10.1038/s44306-024-00034-3.

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AbstractFor the realization of magnon-based current-free technologies, referred to as magnonics, all-optical control of magnons is an important technique for both fundamental research and practical applications. Magnon-polariton is a coupled state of magnon and photon in a magnetic medium, expected to exhibit magnon-like controllability and photon-like high-speed propagation. While recent studies have observed magnon-polaritons as modulation of incident terahertz waves, the influence of magnon-photon coupling on magnon propagation properties remains unexplored. This study aimed to observe the
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38

Han, Xiufeng, Hao Wu, and Tianyi Zhang. "Magnonics: Materials, physics, and devices." Applied Physics Letters 125, no. 2 (2024). http://dx.doi.org/10.1063/5.0216094.

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Magnon, the quanta of spin waves, can serve as an efficient spin information carrier for memory and logic applications, with the advantages of the Joule-heating free induced low power-dissipation property and the phase-coherent induced quantum phenomena. In analogy to spintronics, magnonics focuses on the excitation, detection, and manipulation of magnons (spin waves). In recent years, with the development of nanotechnology, abundant magnonic phenomena emerge in the nanoscale, such as the spin Seebeck effect, magnon-mediated electric current drag effect, magnon valve effect, magnon junction ef
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Zingsem, Benjamin W., Thomas Feggeler, Alexandra Terwey, et al. "Biologically encoded magnonics." Nature Communications 10, no. 1 (2019). http://dx.doi.org/10.1038/s41467-019-12219-0.

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Abstract Spin wave logic circuits using quantum oscillations of spins (magnons) as carriers of information have been proposed for next generation computing with reduced energy demands and the benefit of easy parallelization. Current realizations of magnonic devices have micrometer sized patterns. Here we demonstrate the feasibility of biogenic nanoparticle chains as the first step to truly nanoscale magnonics at room temperature. Our measurements on magnetosome chains (ca 12 magnetite crystals with 35 nm particle size each), combined with micromagnetic simulations, show that the topology of th
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40

Wang, Xuan, Shaohua Yuan, Chaowei Sui, Yan Wang, and Chenglong Jia. "Realization of Hadamard gate with twisted magnon modes in synthetic antiferromagnets." Applied Physics Letters 124, no. 7 (2024). http://dx.doi.org/10.1063/5.0189536.

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Manipulating the polarization of spin waves highlights the potential of antiferromagnetic magnonics in encoding and handling magnon information with high fidelity. Here, we propose a flexible approach to mutually convert polarization states (i.e., Hadamard gate) by incorporating a topological degree of freedom, intrinsic orbital angular momentum (OAM), into twisted spin wave modes within synthetic antiferromagnetic nanodisks. The polarization states of spin waves and the implementation of magnonic logic operations can be electrically read out through combined spin pumping and inverse spin Hall
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Wang, Qi, Andrii V. Chumak, and Philipp Pirro. "Inverse-design magnonic devices." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-22897-4.

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AbstractThe field of magnonics offers a new type of low-power information processing, in which magnons, the quanta of spin waves, carry and process data instead of electrons. Many magnonic devices were demonstrated recently, but the development of each of them requires specialized investigations and, usually, one device design is suitable for one function only. Here, we introduce the method of inverse-design magnonics, in which any functionality can be specified first, and a feedback-based computational algorithm is used to obtain the device design. We validate this method using the means of m
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42

Zhang, Yuelin, Lutong Sheng, Jilei Chen, et al. "Nonlinear three-magnon scattering in low-damping La0.67Sr0.33MnO3 thin films." Chinese Physics B, August 8, 2023. http://dx.doi.org/10.1088/1674-1056/acedf8.

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Abstract Three-magnon scattering, a nonlinear process in which a high-energy magnon splits into two low-energy magnons with energy and momentum conservation, have been widely studied in magnonics community. Here, we report experimental observation of nonlinear three-magnon scattering in La0.67Sr0.33MnO3 thin films with low magnetic damping (~10-4) by all-electric and angle-resolved spin wave spectroscopy. The reflection spectra of the spin wave resonance with high excitation at Damon–Eshbach configuration demonstrate a scattering regime with gradual signal disappearance, where a magnon of Damo
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43

Fan, Zhi-Yuan, Hang Qian, and Jie Li. "Stationary optomagnonic entanglement and magnon-to-optics quantum state transfer via opto-magnomechanics." Quantum Science and Technology, November 17, 2022. http://dx.doi.org/10.1088/2058-9565/aca3cf.

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Abstract We show how to prepare a steady-state entangled state between magnons and optical photons in an opto-magnomechanical configuration, where a mechanical vibration mode couples to a magnon mode in a ferrimagnet by the dispersive magnetostrictive interaction, and to an optical cavity by the radiation pressure. We find that, by appropriately driving the magnon mode and the cavity to simultaneously activate the magnomechanical Stokes and the optomechanical anti-Stokes scattering, a stationary optomagnonic entangled state can be created. We further show that, by activating the magnomechanica
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44

Majumder, Sudip, samiran choudhury, Saswati Barman, Yoshichika Otani, and Anjan Barman. "Tunable Strong Magnon-Magnon Coupling in Two-Dimensional Array of Diamond Shaped Ferromagnetic Nanodots." Physica Scripta, December 28, 2023. http://dx.doi.org/10.1088/1402-4896/ad1953.

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Abstract Hybrid magnonics involving coupling between magnons and different quantum particles have been extensively studied during past few years for varied interests including quantum electrodynamics. In such systems, magnons in magnetic materials with high spin density are utilized where the “coupling strength” is collectively enhanced by the square root of the number of spins to overcome the weaker coupling between individual spins and the microwave field. However, achievement of strong magnon-magnon coupling in a confined nanomagnets would be essential for on-chip integration of such hybrid
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Flebus, Benedetta, Dirk Grundler, Bivas Rana, et al. "The 2024 Magnonics Roadmap." Journal of Physics: Condensed Matter, April 2, 2024. http://dx.doi.org/10.1088/1361-648x/ad399c.

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Abstract Magnonics is a research field that has gained an increasing interest in both the fundamental and applied sciences in recent years. This field aims to explore and functionalize collective spin excitations in magnetically ordered materials for modern information technologies, sensing applications, and advanced computational schemes. Spin waves, also known as magnons, carry spin angular momenta that allow for the transmission, storage, and processing of information without moving charges. In integrated circuits, magnons enable on-chip data processing at ultrahigh frequencies without the
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Zhang, Zhitao, Chao Xin, and Haoliang Liu. "Parity‐Time Symmetry in Magnetic Materials and Devices." Advanced Electronic Materials, December 19, 2023. http://dx.doi.org/10.1002/aelm.202300674.

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AbstractNon‐Hermitian Hamiltonians may still possess real eigenvalues in case of the existence of parity‐time (PT) symmetry. Exceptional points (EPs) occur at the phase transition from real to complex eigenvalues due to PT‐symmetry breaking in the parameter space. Magnonic devices use magnons to carry, transport, and process information, which have the advantages of low energy dissipation, wave‐based computing, and nonlinear data processing. The combination of PT‐symmetry and magnonics may lead to novel physics as well as unprecedented functional device applications. Recently, the research of
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47

Comstock, Andrew H., Chung-Tao Chou, Zhiyu Wang, et al. "Hybrid magnonics in hybrid perovskite antiferromagnets." Nature Communications 14, no. 1 (2023). http://dx.doi.org/10.1038/s41467-023-37505-w.

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AbstractHybrid magnonic systems are a newcomer for pursuing coherent information processing owing to their rich quantum engineering functionalities. One prototypical example is hybrid magnonics in antiferromagnets with an easy-plane anisotropy that resembles a quantum-mechanically mixed two-level spin system through the coupling of acoustic and optical magnons. Generally, the coupling between these orthogonal modes is forbidden due to their opposite parity. Here we show that the Dzyaloshinskii–Moriya-Interaction (DMI), a chiral antisymmetric interaction that occurs in magnetic systems with low
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48

Shukla, Rohit K., Levan L. Chotorlishvili, Vipin Vijayan, et al. "Quantum information diode based on a magnonic crystal." Materials for Quantum Technology, July 10, 2023. http://dx.doi.org/10.1088/2633-4356/ace603.

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Abstract Exploiting the effect of nonreciprocal magnons in a system with no inversion symmetry, we propose a concept of a quantum information diode, i.e., a device rectifying the amount of quantum information transmitted in the opposite directions. We control the asymmetric left and right quantum information currents through an applied external electric field and quantify it through the left and right out-of-time-ordered correlation (OTOC). To enhance the efficiency of the quantum information diode, we utilize a magnonic crystal. We excite magnons of different frequencies and let them propagat
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49

Hayashi, Daiju, Yoichi Shiota, Mio Ishibashi, Ryusuke Hisatomi, Takahiro Moriyama, and Teruo ONO. "Observation of mode splitting by magnon-magnon coupling in synthetic antiferromagnets." Applied Physics Express, May 15, 2023. http://dx.doi.org/10.35848/1882-0786/acd5a6.

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Abstract We investigated the coherently excited propagating magnons in in-plane magnetized synthetic antiferromagnets using heterodyne-magneto-optical Kerr effect technique. Under the in-plane magnetic field to 45° away from the magnon propagation direction, we observed the mode splitting of magnon dispersion relation due to the magnon-magnon coupling between acoustic and optical magnon modes. The strong coupling with a cooperativity of 8.4 ± 1.3 is achieved for finite wavenumber. These results provide a deep understanding of the properties of coherently excited magnons in synthetic antiferrom
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Li, Zhi-xiong, Xiang Liu, Zhi-ming Yan, Xi-guang Wang, and Guang-hua Guo. "Realizing polarization-dependent unidirectional magnon channel in antiferromagnetic domain wall." Applied Physics Letters 124, no. 3 (2024). http://dx.doi.org/10.1063/5.0181317.

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Achieving unidirectional spin wave (or magnon) transport in domain wall (DW) represents the key step for designing functional magnonic devices. Here, we theoretically investigate the propagation behavior of spin waves (SWs) in antiferromagnetic DW when the Dzyaloshinskii–Moriya interaction (DMI) and/or spin transfer torque (STT) are considered. On the one hand, we find that the DMI lifts the degeneracy of magnon bands, from which one can obtain pure right- or left-handed polarized SWs. On the other hand, the nonreciprocal attenuation of magnons induced by STT is identified. Interestingly, we r
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