Magnetostatic surface wave propagation in a one-dimensional magnonic crystal with broken translational symmetry

Filimonov, Yu. A.; Pavlov, E. S.; Vystostkii, S.; Никитов, С. А.

doi:10.1063/1.4771126

Cited by 41 publications

(20 citation statements)

References 34 publications

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“…Note that the "wave impedance mismatch" is due to the counterprecessing m MD of a single nanomagnet in contrast to the local inhomogeneities exploiting a SW band structure mismatch so far. 2,3,5,6 The magnonic crystal with periodic nanopatterning is key to provoke the observed type of elastic scattering. In further simulations we have considered different numbers q of selectively reversed nanostripes (we tested q = 1,2,3,4).…”

Section: Discussionmentioning

confidence: 99%

Nanostripe of subwavelength width as a switchable semitransparent mirror for spin waves in a magnonic crystal

2013

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Spin wave transmission experiments are performed on a one-dimensional magnonic crystal (MC) where an injection pad for domain walls reverses the magnetization M of selected nanostripes independently from the otherwise saturated MC. The MC consists of a periodic array of 255-nm-wide permalloy nanostripes with an edge-to-edge separation of 45 nm. In the experiment and simulations, we find that a single nanostripe with antiparallel M performing opposite spin precession reduces significantly the transmission of long-wavelength spin waves. Our findings allow for the implementation and current-controlled operation of magnonic devices such as spin-wave-based logic on the nanoscale.

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Section: Discussionmentioning

confidence: 99%

Nanostripe of subwavelength width as a switchable semitransparent mirror for spin waves in a magnonic crystal

2013

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“…It should be noted that unlike the arrays of micron-size YIG elements studied by Filimonov et al [16] where only the magnetostatic dipolar interaction is taken into account, consideration of the exchange interaction for our nano-size structures is essential for good agreement with BLS experiments. Our calculations reveal that the modified periodicity of the defect MC induces additional bandgaps at the BZ boundaries corresponding to a primitive supercell, as shown in Fig.…”

Section: -5mentioning

confidence: 91%

Band structure of magnonic crystals with defects: Brillouin spectroscopy and micromagnetic simulations

Zhang

Kuok

et al. 2014

Phys. Rev. B

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Using Brillouin spectroscopy, the first observation has been made of the band structures of nanostructured defect magnonic crystals. The samples are otherwise one-dimensional periodic arrays of equal-width Ni 80 Fe 20 and cobalt nanostripes, where the defects are stripes of a different width. A dispersionless defect branch emerges within the bandgap with a frequency tunable by varying the defect stripe width, while the other branches observed are similar to those of a defect-free crystal. Micromagnetic and finite-element simulations performed unveil additional tiny bandgaps and the frequency-dependent localization of the defect mode in the vicinity of the defects.

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“…In particular, considerable attention has attracted investigations of magnonic crystals with defects [31][32][33][34][35], topological and nonreciprocal phenomena in magnonic crystals [36][37][38][39][40][41][42][43][44], linear and nonlinear spin-wave dynamics in coupled magnonic crystals [45][46][47], and the formation and propagation of solitons [48][49][50][51]. Besides one-dimensional magnonic crystals [81][82][83][84][85][86][87][88][89][90][91][92][93][94][95][96][97][98], two-dimensional magnonic crystals have been intensively studied experimentally while three-dimensional magnonic crystals [78][79][80] are investigated theor etically.…”

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.

439

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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Magnetostatic surface wave propagation in a one-dimensional magnonic crystal with broken translational symmetry

Cited by 41 publications

References 34 publications

Nanostripe of subwavelength width as a switchable semitransparent mirror for spin waves in a magnonic crystal

Nanostripe of subwavelength width as a switchable semitransparent mirror for spin waves in a magnonic crystal

Band structure of magnonic crystals with defects: Brillouin spectroscopy and micromagnetic simulations

Magnonic crystals for data processing

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