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Rectification of microwave oscillations of magnetization in a permalloy film is realized using planar Hall effect. Two different rectified signals are obtained: a signal from the linearly excited uniform magnetization precession at the…

Mesoscale and Nanoscale Physics · Physics 2016-02-22 Yuri V. Kobljanskyj , Gennadii A. Melkov , Alexander A. Serga , Andrei N. Slavin , Burkard Hillebrands

We study the eigenmodes of a slab of a wire metamaterial and demonstrate that such a waveguiding structure supports deep-subwavelength propagating modes exhibiting properties of a single-mode waveguide at any fixed frequency below the…

Optics · Physics 2015-06-16 Pavel Belov , Rostislav Dubrovka , Ivan Iorsh , Ilya Yagupov , Yuri Kivshar

Spin waves propagating in magnetic materials exhibit nonlinear behavior at large amplitudes due to the competition between excitation and relaxation, providing an attractive platform for exploring nonlinear wave dynamics. In particular,…

Reversed structures of artificial spin-ice systems, where elongated holes with elliptical shape (antidots) are arranged into a square array with two orthogonal sublattices, are referred to as anti-squared spin-ice. Using Brillouin light…

Mesoscale and Nanoscale Physics · Physics 2019-05-07 S. Mamica , X. Zhou , A. Adeyeye , M. Krawczyk , G. Gubbiotti

System of Dirac fermions with random-varying mass is studied in detail. We reformulate the system by transfer-matrix formalism. Eigenvalues and wave functions are obtained numerically for various configurations of random telegraphic mass…

Disordered Systems and Neural Networks · Physics 2009-10-31 Koujin Takeda , Toyohiro Tsurumaru , Ikuo Ichinose , Masaomi Kimura

Morphology of coalescing BBH waveforms are affected by its spins. Waveform models built for inference of source parameters have several in-built approximations. In current precessing IMRPhenom and SEOBNR waveform models, systems with the…

General Relativity and Quantum Cosmology · Physics 2021-01-28 Chinmay Kalaghatgi , Mark Hannam

We demonstrate a technique that enables ferromagnetic resonance (FMR) measurements of the normal modes for magnetic excitations in individual nanoscale ferromagnets, smaller in volume by a factor of 1000 than can be probed by other methods.…

Materials Science · Physics 2009-11-11 J. C. Sankey , P. M. Braganca , A. G. F. Garcia , I. N. Krivorotov , R. A. Buhrman , D. C. Ralph

A pair of quantized spin-wave modes is driven by two-tone parallel pumping in a YIG microdisk. The nonlinear dynamics is experimentally investigated by probing the resulting steady state, which is found to critically depend on the chosen…

We investigate the formation of multiple spiral modes in Milky Way-like disk-halo systems without explicitly exciting perturbations. We explore how numerical resolution, the level of local disk stability, and the presence of a live halo…

Astrophysics of Galaxies · Physics 2026-04-30 SungWon Kwak , Ivan Minchev , Christoph Pfrommer , Matthias Steinmetz , Sukyoung K. Yi

Vibrational spectra and normal modes of mechanically stable particle packings in three dimensions are analyzed over a range of compressions, from near the jamming transition, where the packings lose their rigidity, to far above it. At high…

Statistical Mechanics · Physics 2011-08-02 Leonardo E. Silbert , Andrea J. Liu , Sidney R. Nagel

The future space-based gravitational wave detector LISA will be able to measure parameters of coalescing massive black hole binaries, often to extremely high accuracy. Previous work has demonstrated that the black hole spins can have a…

General Relativity and Quantum Cosmology · Physics 2015-03-17 Ryan N. Lang , Scott A. Hughes , Neil J. Cornish

Quantized spin excitations in a single ferromagnetic microstrip have been measured using the microwave photovoltage technique. Several kinds of spin wave modes due to different contributions of the dipole-dipole and the exchange…

Strongly Correlated Electrons · Physics 2009-11-13 Y. S. Gui , N. Mecking , C. -M. Hu

Frequency responses of multi-degree-of-freedom mechanical systems with weak forcing and damping can be studied as perturbations from their conservative limit. Specifically, recent results show how bifurcations near resonances can be…

Dynamical Systems · Mathematics 2020-11-11 Mattia Cenedese , George Haller

We investigate the role weakly damped modes play in the selection of Faraday wave patterns forced with rationally-related frequency components m*omega and n*omega. We use symmetry considerations to argue for the special importance of the…

Pattern Formation and Solitons · Physics 2009-11-07 Chad M. Topaz , Mary Silber

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

This work studies the resonance excitations of the three-dimensional skyrmions lattice in the finite thickness plate of an isotropic chiral magnet using spin dynamics simulations. We found that the absorption spectra and resonance modes…

Mesoscale and Nanoscale Physics · Physics 2022-07-21 Andrii S. Savchenko , Vladyslav M. Kuchkin , Filipp N. Rybakov , Stefan Blügel , Nikolai S. Kiselev

Nonlinear guided wave modes in an asymmetric slab waveguide formed by an isotropic dielectric layer placed on a linear or nonlinear substrate and covered by a hyperbolic material are investigated. Optical axis is normal to the slab plane.…

Optics · Physics 2016-11-23 Ekaterina I. Lyashko , Andrey I. Maimistov

Magnetostatic spin wave dispersion and loss are measured in micron scale spin wave-guides in ferromagnetic, metallic CoTaZr. Results are in good agreement with model calculations of spin wave dispersion. The measured attenuation lengths, of…

Materials Science · Physics 2009-11-13 A. Kozhanov , D. Ouellette , M. Rodwell , A. P. Jacob , D. W. Lee , S. X. Wang , S. J. Allen

Surface plasmon resonance in super-period metal nanoslits can be observed in the first order diffraction as well in the zeroth order transmission. In this paper, surface plasmon resonance modes in various super-period gold nanoslit arrays…

Optics · Physics 2016-04-27 Junpeng Guo , Haisheng Leong

We report ferromagnetic and spin wave resonance absorption measurements on high quality epitaxially grown Ga_{1-x}Mn_{x}As thin films. We find that these films exhibit robust ferromagnetic long-range order, based on the fact that up to…

Condensed Matter · Physics 2009-11-10 T. G. Rappoport , P. Redlinski , X. Liu , G. Zarand , J. K. Furdyna , B. Janko