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The magnetization dynamics in nanostructures has been extensively studied in the last decades, and nanomagnetism has evolved significantly over that time, discovering new effects, developing numerous applications, and identifying promising…

Materials Science · Physics 2022-10-03 Mateusz Zelent , Mathieu Moalic , Olav Hellwig , Anjan Barman , Maciej Krawczyk

Towards the development of strategies for tailoring spin-wave band gaps in magnonic crystals, this work examines the band gap properties in a one-dimensional magnonic crystal with double periodicity. A long and narrow yttrium iron garnet…

Mesoscale and Nanoscale Physics · Physics 2025-05-15 Adam G. Whitney , Joshua M. Lewis , Justin Dickovick , Vijay Kalappattil , Lincoln D. Carr , Mingzhong Wu

We present a hybrid magnonic crystal composed of a chain of nanodots with strong perpendicular magnetic anisotropy and Dzyaloshinskii-Moriya interaction, positioned above a permalloy waveguide. The micromagnetic study examines two different…

Mesoscale and Nanoscale Physics · Physics 2024-10-17 Krzysztof Szulc , Mateusz Zelent , Maciej Krawczyk

One-dimensional magnonic crystals have been implemented as gratings of shallow grooves chemically etched into the surface of yttrium-iron garnet films. Scattering of backward volume magnetostatic spin waves from such structures is…

Other Condensed Matter · Physics 2009-10-14 A. V. Chumak , A. A. Serga , S. Wolff , B. Hillebrands , M. P. Kostylev

The notion of magnetic symmetry is reexamined in light of the recent observation of long range magnetic order in icosahedral quasicrystals [Charrier et al., Phys. Rev. Lett. 78, 4637 (1997)]. The relation between the symmetry of a…

Materials Science · Physics 2009-10-31 Ron Lifshitz

By means of the plane wave method we study spin wave dynamics in two-dimensional bi-component magnonic crystals based on a squeezed hexagonal lattice and consist of a permalloy thin film with cobalt inclusions. We explore the dependence of…

Mesoscale and Nanoscale Physics · Physics 2019-05-07 S. Mamica , M. Krawczyk , D. Grundler

Periodically patterned metamaterials are known for exhibiting wave properties similar to the ones observed in electronic band structures in crystal lattices. In particular, periodic ferromagnetic materials are characterized by the presence…

Mesoscale and Nanoscale Physics · Physics 2019-02-20 R. A. Gallardo , D. Cortés-Ortuño , T. Schneider , A. Roldán-Molina , Fusheng Ma , R. E. Troncoso , K. Lenz , H. Fangohr , J. Lindner , P. Landeros

The one-dimensional planar magnonic crystals are usually fabricated as a sequence of stripes intentionally or accidentally separated by non-magnetic spacers. The influence of spacers on shaping the spin wave spectra is complex and still not…

Mesoscale and Nanoscale Physics · Physics 2020-01-08 G. Centala , M. L. Sokolovskyy , C. S. Davies , M. Mruczkiewicz , S. Mamica , J. Rychly , J. W. Klos , V. V. Kruglyak , M. Krawczyk

We introduce a new type of binary magnonic crystal, where Ni$_{80}$Fe$_{20}$ nanodots of two different sizes are diagonally connected forming a unit and those units are arranged in a square lattice. The magnetization dynamics of the sample…

Mesoscale and Nanoscale Physics · Physics 2020-02-26 Nikita Porwal , Koustuv Dutta , Sucheta Mondal , Samiran Choudhury , Jaivardhan Sinha , Anjan Barman , P. K. Datta

We report a simple theoretical derivation of the spectrum and damping of spin waves in a cylindrical periodically structured magnetic nanowire (cylindrical magnonic crystal) in the "effective medium" approximation. The dependence of the…

Materials Science · Physics 2007-05-23 V. V. Kruglyak , R. J. Hicken , A. N. Kuchko , V. Yu. Gorobets

Strongly-interacting nanomagnetic systems are pivotal across next-generation technologies including reconfigurable magnonics and neuromorphic computation. Controlling magnetisation state and local coupling between neighbouring nanoelements…

Mesoscale and Nanoscale Physics · Physics 2021-01-21 K. D. Stenning , J. C. Gartside , T. Dion , A. Vanstone , D. M. Arroo , W. R. Branford

We consider the magnonic properties of two dipolarly coupled magnetic stripes, both deposited on a normal conductive substrate with strong spin-orbit coupling. A charge current in the substrate acts on the adjacent magnets with spin-orbit…

Strongly Correlated Electrons · Physics 2022-09-02 Xi-guang Wang , Dominik Schulz , Guang-hua Guo , Jamal Berakdar

Strongly-interacting nanomagnetic arrays are crucial across an ever-growing suite of technologies. Spanning neuromorphic computing, control over superconducting vortices and reconfigurable magnonics, the utility and appeal of these arrays…

Mesoscale and Nanoscale Physics · Physics 2020-12-18 J. C. Gartside , S. G. Jung , S. Y. Yoo , D. M. Arroo , A. Vanstone , T. Dion , K. D. Stenning , W. R. Branford

We studied finite Fibonacci sequence of Co and Py stripes aligned side-by-side and in direct contact with each other. Calculations based on continuous model including exchange and dipole interactions were performed for structures feasible…

Mesoscale and Nanoscale Physics · Physics 2015-08-19 J. Rychły , J. W. Kłos , M. Mruczkiewicz , M. Krawczyk

A nano-scale reconfigurable magnonic crystal is designed using voltage-controlled perpendicular magnetic anisotropy (PMA) in ferromagnetic-dielectric hetero-structures. A periodic array of gate metallic stripes is placed on top of a MgO/Co…

Mesoscale and Nanoscale Physics · Physics 2017-04-26 Qi Wang , Andrii V. Chumak , Lichuan Jin , Huaiwu Zhang , Burkard Hillebrands , Zhiyong Zhong

Altermagnets are a recently discovered class of magnetic materials that combine a collinear, zero-magnetization spin structure, characteristic of antiferromagnets, with spin-split electronic bands, a hallmark of ferromagnets. This unique…

Mesoscale and Nanoscale Physics · Physics 2026-05-29 Rui Chen , Bin Zhou , Dong-Hui Xu

The magnonic crystal, which has a spatial modulation wave vector $q$, couples the spin wave with wave vector $k$ to the one with wave vector $k-q$. For a conventional magnonic crystal with direct current (dc) supply, the spin waves around…

Materials Science · Physics 2023-05-18 Ankang Liu , Alexander M. Finkel'stein

By means of the plane wave method, we study nonuniform, i.e., mode- and k-dependent, effects in the spin-wave spectrum of a two-dimensional bicomponent magnonic crystal. We use the crystal based on a hexagonal lattice squeezed in the…

Mesoscale and Nanoscale Physics · Physics 2019-12-18 S. Mamica , M. Krawczyk

Magnonic crystals (MCs) are emerging spintronic metamaterials capable of manipulating transmission properties of magnons, the quanta of spin waves. Due to the complex relationship between lattice geometry and magnonic band dispersion, it…

Materials Science · Physics 2026-03-06 Ryunosuke Nagaoka , Takahiro Yamazaki , Chiharu Mitsumata , Yuma Iwasaki , Masato Kotsugi

The discovery of the ultrafast magnetization dynamics twenty years ago has led to a broad variety of experimental techniques to explore phenomena in magnetic materials with high temporal resolution. In the present article we present a study…

Mesoscale and Nanoscale Physics · Physics 2017-05-24 M. Mansurova , J. von der Haar , J. Panke , Jakob Walowski , Henning Ulrichs , M. Münzenberg