Oscillatory Energy Exchange between Waves Coupled by a Dynamic Artificial Crystal

Karenowska, A. D.; Gregg, J. F.; Tiberkevich, Vasil; Slavin, A. N.; Chumak, A. V.; Serga, Alexander A.; Hillebrands, B.

doi:10.1103/physrevlett.108.015505

Cited by 51 publications

(56 citation statements)

References 18 publications

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“…A paradigm that is the focus of recent investigation consists of actively modifying the band structure of magnonic crystals [15]. This has been achieved to date by use of Meander-type structures [16] and, more recently, via heating [17] in one-dimensional ferromagnets.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable wave band structure of an artificial square ice

et al. 2016

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Artificial square ices are structures composed of magnetic nanoelements arranged on the sites of a twodimensional square lattice, such that there are four interacting magnetic elements at each vertex, leading to geometrical frustration. Using a semianalytical approach, we show that square ices exhibit a rich spin-wave band structure that is tunable both by external magnetic fields and the magnetization configuration of individual elements. Internal degrees of freedom can give rise to equilibrium states with bent magnetization at the element edges leading to characteristic excitations; in the presence of magnetostatic interactions these form separate bands analogous to impurity bands in semiconductors. Full-scale micromagnetic simulations corroborate our semianalytical approach. Our results show that artificial square ices can be viewed as reconfigurable and tunable magnonic crystals that can be used as metamaterials for spin-wave-based applications at the nanoscale.

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Section: Introductionmentioning

confidence: 99%

Reconfigurable wave band structure of an artificial square ice

et al. 2016

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“…For magnon spintronic applications, magnonic crystals constitute one of the key elements since they open up access to novel multi-functional magnonic devices [9]. These devices can be used as spin-wave conduits and filters (we do not provide any citations here since, in fact, any magnonic crystal can serve as a conduit or a filter), sensors [99][100][101], delay lines and phase shifters [102,103], components of auto-oscillators [49,51,102,103], frequency and time inverters [104,105], data-buffering elements [105,106], power limiters [107], nonlinear enhancers in a magnon transistor [108], and components of logic gates [109,110]. The concept of magnon spintronics.…”

Section: Magnonic Crystals and Their Role In The Field Of Magnon Spinmentioning

confidence: 99%

Magnonic crystals for data processing

Chumak

Serga

Hillebrands

2017

J. Phys. D: Appl. Phys.

423

320

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IntroductionThis article focuses on a selection of results in the field of magnonic crystals obtained within the last decade in our group. Special attention is devoted to the application of magnonic crystals in data processing and information technologies. Because of the large number of achievements in the field, it is unavoidable that many important results are excluded from this article. Therefore, we would like to direct the reader's attention to excellent reviews devoted to different aspects of magnonic crystals: spin-wave dynamics in periodic structures for microwave applications [1, 2], Brillouin light scattering (BLS) studies of planar metallic magnonic crystals [3], micromagnetic computer simulations of width-modulated waveguides [4], photo-magnonic aspects of antidot lattices studies [5], theoretical studies of one-dimensional monomode waveguides [6], and reconfigurable magnonic crystals [7]. The results presented in the current review were already partially presented in our own reviews of yttrium iron garnet (YIG) magnonics [8] and magnon spintronics [9] as well as in book chapters on dynamic magnonic crystals [10] and magnon spintronics [11].The article is organized in the following way: In the introduction we describe the field of magnon spintronics and discuss the role of magnonic crystals in it. The next section 2 is devoted to the properties of spin waves in thin planar films and waveguides, to the magnetic materials commonly used in the field, and to the methods of spin-wave excitation and detection. Sections 3 and 4 are devoted to the study of physical phenomena taking place in static and dynamic magnonic crystals, respectively. The application of magnonic crystals for magnonbased processing of analog and digital data is discussed in section 5. Specifically, static magnonic crystals can be used as passive elements, like microwave filters, resonators or delay lines for microwave generation. Reconfigurable and dynamic magnonic crystals are promising as active devices performing, for example, tunable filtering, frequency conversion or time reversal. In the final section we briefly summarize the results. Magnon spintronics: from electron-to magnon-based computingA disturbance in the local magnetic order can propagate in a magnetic material in the form of a wave. This wave was first predicted by Bloch in 1929 and was named spin wave since AbstractMagnons (the quanta of spin waves) propagating in magnetic materials with wavelengths at the nanometer-scale and carrying information in the form of an angular momentum can be used as data carriers in next-generation, nano-sized low-loss information processing systems. In this respect, artificial magnetic materials with properties periodically varied in space, known as magnonic crystals, are especially promising for controlling and manipulating magnon currents. In this article, different approaches for the realization of static, reconfigurable, and dynamic magnonic crystals are presented along with a variety of novel wave phenomena discovered in these cryst...

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“…A very fascinating type of MCs is the dynamic magnonic crystal (DMC) [18][19][20]. This is a wave guiding structure with rapidly switchable periodic properties.…”

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confidence: 99%

“…An electric current in the conductor produces a periodic spatial modulation of the bias magnetic field [18]. Due to this property, the dynamic magnonic crystal allows for unique signal processing functions, such as all-linear time reversal, frequency conversion [19], and signal storage [20].…”

mentioning

confidence: 99%

“…Another example could be microwave notch filters with a stopband frequency corresponding to the magnonic band gap. Advantages of the dynamic magnonic crystal presented above in comparison to the ones previously developed [18][19][20] are the potentially fast performance and the possibility for miniaturization. Indeed, the current control is provided here by short conductors, which have an inductance much less than the meander type wire reported in [18].…”

mentioning

confidence: 99%

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A spin-wave logic gate based on a width-modulated dynamic magnonic crystal

Никитин

Устинов

Семенов

et al. 2015

Applied Physics Letters

117

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An electric current controlled spin-wave logic gate based on a width-modulated dynamic magnonic crystal is realized. The device utilizes a spin-wave waveguide fabricated from a single-crystal Yttrium Iron Garnet film and two conducting wires attached to the film surface. Application of electric currents to the wires provides a means for dynamic control of the effective geometry of the waveguide and results in a suppression of the magnonic band gap. The performance of the magnonic crystal as an AND logic gate is demonstrated.

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Oscillatory Energy Exchange between Waves Coupled by a Dynamic Artificial Crystal

Cited by 51 publications

References 18 publications

Reconfigurable wave band structure of an artificial square ice

Reconfigurable wave band structure of an artificial square ice

Magnonic crystals for data processing

A spin-wave logic gate based on a width-modulated dynamic magnonic crystal

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