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We present a systematic micromagnetic study of standing spin-wave modes in infinitely long Permalloy strips with rectangular cross-section. Using a finite-element dynamic-matrix method, we first calculate the eigenfrequencies and the…

Mesoscale and Nanoscale Physics · Physics 2024-02-08 Vadym Iurchuk , Sven Stienen , Jürgen Lindner , Attila Kákay

We investigate the interplay between spin currents and spin waves in nanofabricated Permalloy waveguides with geometrical constrictions. Using propagating spin-wave spectroscopy, micromagnetic simulations, and analytical modeling, we…

Using Brillouin light scattering spectroscopy and dynamical matrix method calculations, we study collective spin waves in dense arrays of periodically double-side width-modulated Permalloy nanowires. Width modulation is achieved by creating…

Mesoscale and Nanoscale Physics · Physics 2018-08-07 G. Gubbiotti , L. L. Xiong , F. Montoncello , L. Giovannini , A. O. Adeyeye

The spin wave modes of cylindrical nanowires of moderate diameter-to-length ratio are investigated in this article. Based on three dimensional simulations and analytical calculations we determine the spatial structure of the modes. We show…

Materials Science · Physics 2011-11-17 Voicu O. Dolocan

To realize spin wave logic gates programmable phase inverters are essential. We image with phase-resolved Brillouin light scattering microscopy propagating spin waves in a one-dimensional magnonic crystal consisting of dipolarly coupled…

Mesoscale and Nanoscale Physics · Physics 2021-04-23 Korbinian Baumgaertl , Dirk Grundler

We explore the competition between light-mediated and intrinsic matter-matter interactions in waveguide quantum electrodynamics. For this, we couple a superconducting transmission line to a model magnetic material, made of organic free…

We present the experimental demonstration of the parallel parametric generation of spin-waves in a microscaled yttrium iron garnet waveguide with nanoscale thickness. Using Brillouin light scattering microscopy, we observe the excitation of…

Mesoscale and Nanoscale Physics · Physics 2023-11-01 M. Mohseni , M. Kewenig , R. Verba , Q. Wang , M. Schneider , B. Heinz , F. Kohl , C. Dubs , B. Lägel , A. A. Serga , B. Hillebrands , A. V. Chumak , P. Pirro

Excitation of spin waves is considered in a superconducting ferromagnetic slab with the equilibrium magnetization both perpendicular and parallel to the surface. The surface impedance is calculated and its behavior near propagation…

Superconductivity · Physics 2009-11-11 V. Braude

Ferromagnetic resonance modes in a single rectangular Ni$_{80}$Fe$_{20}$ microstrip were directly imaged using time-resolved scanning transmission x-ray microscopy combined with a phase-locked ferromagnetic resonance excitation scheme and…

The wave nature of electrons in semiconductor nanostructures results in spatial interference effects similar to those exhibited by coherent light. The presence of spin-orbit coupling renders interference in spin space and in real space…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 U. Zuelicke

We report unidirectional transmission of micron-wide spin waves beams in a 55 nm thin YIG. We downscaled a chiral coupling technique implementing Ni80Fe20 nanowires arrays with different widths and lattice spacing to study the…

Applied Physics · Physics 2023-01-13 L. Temdie , V. Castel , C. Dubs , G. Pradhan , J. Solano , H. Majjad , R. Bernard , Y. Henry , M. Bailleul , V. Vlaminck

We show theoretically that a weakly interacting gas of spin-polarized exciton-polaritons in a semiconductor microcavity supports propagation of spin waves. The spin waves are characterised by a parabolic dispersion at small wavevectors…

Mesoscale and Nanoscale Physics · Physics 2015-04-30 M. M. Glazov , A. V. Kavokin

We report experimental studies of spin-wave excitations in individual 22 nm thick Ni80Fe20 nanotubes with diameters of about 150 nm by means of Brillouin light-scattering (BLS) spectroscopy. Irradiated by microwaves we resolve sets of…

Mesoscale and Nanoscale Physics · Physics 2022-04-28 Maria Carmen Giordano , Mohammad Hamdi , Andrea Mucchietto , Dirk Grundler

We theoretically study spin-wave modes and their intense excitations activated by microwave magnetic fields in the skyrmion-crystal phase of insulating magnets by numerically analyzing a two-dimensional spin model using the…

Strongly Correlated Electrons · Physics 2012-01-09 Masahito Mochizuki

We have experimentally and numerically investigated the dispersion of collective spin waves prop-agating through arrays of longitudinally magnetized nanowires with periodically modulated width. Two nanowire arrays with single-side…

Mesoscale and Nanoscale Physics · Physics 2017-11-22 G. Gubbiotti , L. L. Xiong , F. Montoncello , A. O. Adeyeye

Traveling spin waves in magnonic waveguides undergo severe attenuation, which tends to result in a finite propagation length of spin waves, even in magnetic materials with the accessible lowest damping constant, heavily restricting the…

Mesoscale and Nanoscale Physics · Physics 2022-02-11 Xiangjun Xing , T. Wang , Yan Zhou

The reflection and transmission amplitudes of waves in disordered multimode waveguides are studied by means of numerical simulations based on the invariant embedding equations. In particular, we analyze the influence of surface-type…

Disordered Systems and Neural Networks · Physics 2009-10-31 J. A. Sanchez-Gil , V. Freilikher , A. A. Maradudin , I. Yurkevich

We study the problem of controlling spin waves propagation through an antiferromagnet/ferromagnet interface via tuning material parameters. It is done by introducing the degree of sublattice noncompensation of antiferromagnet (DSNA), which…

Mesoscale and Nanoscale Physics · Physics 2021-12-30 Oksana Busel , Oksana Gorobets , Oleg A. Tretiakov

Many recent papers report on the interest of spin waves for applications. This paper revisits the propagating spin wave spectroscopy when using inductive transceivers connected to a network analyzer. The spin wave conduit can be made of a…

Applied Physics · Physics 2023-10-26 Thibaut Devolder

The interaction of propagating dipolar spin waves with magnetic domain walls is investigated in square-shaped microstructures patterned from the Heusler compound Co$_2$Mn$_{0.6}$Fe$_{0.4}$Si. Using magnetic force microscopy, the reversible…

Mesoscale and Nanoscale Physics · Physics 2015-06-09 P. Pirro , T. Koyama , T. Brächer , T. Sebastian , B. Leven , B. Hillebrands
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