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Self-sustained detonation waves in flake aluminum dust/air mixtures have been studied in a tube of diameter 199 mm and length 32.4 m. A pressure sensor array of 32 sensors mounted around certain circumferences of the tube was used to…

Fluid Dynamics · Physics 2017-02-08 Qingming Liu , Jinxiang Huang , Yunming Zhang , Shuzhuan Li

In this study, we discuss the observation of spin wave interference generated by magnetic oscillators. We employ micromagnetic simulations for two coherent spin Hall nanowire oscillators positioned nearby, horizontally or vertically. The…

Mesoscale and Nanoscale Physics · Physics 2024-03-25 Mohammad Haidar

The spin dynamics of all ferromagnetic materials are governed by two types of collective excitations: spin waves and domain walls. The fundamental processes underlying these collective modes, such as exchange interactions and magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-09-22 A. Spinelli , B. Bryant , F. Delgado , J. Fernández-Rossier , A. F. Otte

A spin-rotation symmetry in spin-orbit coupled two-dimensional electron systems gives rise to a long-lived spin excitation that is robust against short-range impurity scattering. The influence of a constant in-plane electric field on this…

Materials Science · Physics 2007-12-18 P. Kleinert , V. V. Bryksin

We have observed localized spin-wave modes in individual thin-film ferromagnetic wires using time-resolved Kerr microscopy as a micron-scale spectroscopic probe. The localization is due to the partial demagnetization of a wire when an…

Materials Science · Physics 2009-11-07 J. P. Park , P. Eames , D. M. Engebretson , J. Berezovsky , P. A. Crowell

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

We introduce a novel approach for the investigation of spin-wave excitations in itinerant ferromagnets. Our theory is based on a variational treatment of general multi-band Hubbard models which describe elements and compounds of transition…

Strongly Correlated Electrons · Physics 2009-10-31 J. Buenemann

In spin-based quantum information processing devices, the presence of control and detection circuitry can change the local environment of a spin by introducing strain and electric fields, altering its resonant frequencies. These resonance…

Mesoscale and Nanoscale Physics · Physics 2018-04-18 J. J. Pla , A. Bienfait , G. Pica , J. Mansir , F. A. Mohiyaddin , Z. Zeng , Y. M. Niquet , A. Morello , T. Schenkel , J. J. L. Morton , P. Bertet

Magnetic excitations and spin correlations near the interface of two spin-$\frac12$ Heisenberg antiferromagnets are considered using the spin-wave approximation. When the interaction between boundary spins differs essentially from exchange…

Strongly Correlated Electrons · Physics 2019-05-21 N. Voropajeva , A. Sherman

By using an effective field theory for the electromagnetic interaction of spin waves, we show that, in certain antiferromagnets, the latter induce non-reciprocal effects in the microwave region, which should be observable in the second…

Condensed Matter · Physics 2009-10-30 J. M. Roman , J. Soto

We report the transverse control of spin-wave propagation in the configuration where the spin-wave wavevector k is perpendicular to the charge-current density J. Building on theoretical predictions of spin-wave refraction by nonuniform…

Mesoscale and Nanoscale Physics · Physics 2025-12-19 Lorenzo Gnoatto , Rai M. Menezes , Artim L. Bassant , Rembert A. Duine , Milorad V. Milosevic , Reinoud Lavrijsen

Ultrathin metallic ferromagnets on substrates with strong spin-orbit coupling can exhibit induced chiral interactions of the Dzyaloshinskii-Moriya (DM) form. For systems with perpendicular anisotropy, the presence of DM interactions has…

Materials Science · Physics 2014-06-17 Felipe Garcia-Sanchez , Pablo Borys , Arne Vansteenkiste , Joo-Von Kim , Robert L. Stamps

The curling spin wave modes of a ferromagnetic vortex confined to a microscale disc have been directly imaged in response to a microwave field excitation using time-resolved scanning Kerr microscopy. Micromagnetic simulations have been used…

Mesoscale and Nanoscale Physics · Physics 2021-02-10 D. Osuna Ruiz , P. S. Keatley , J. R. Childress , J. A. Katine , R. J. Hicken , A. P. Hibbins , F. Y. Ogrin

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

We study a spin-polarized degenerate Fermi gas interacting via a p-wave Feshbach resonance in an optical lattice. The strong confinement available in this system allows us to realize one- and two-dimensional gases and therefore to restrict…

Other Condensed Matter · Physics 2011-07-19 Kenneth Günter , Thilo Stöferle , Henning Moritz , Michael Köhl , Tilman Esslinger

We present a new mechanism for spin-wave excitation using a pinned domain wall which is forced to oscillate at its eigenfrequency and radiates spin waves. The domain wall acts as a frequency doubler, as the excited spin waves have twice the…

We experimentally demonstrate the operation of a spin-wave Rowland spectrometer. In the proposed device geometry, spin waves are coherently excited on a diffraction grating and form an interference pattern that spatially separates spectral…

We study the interaction of a nonlinear spin-wave and magnetic soliton in a uniaxial anisotropic ferromagnet. By means of a reasonable assumption and a straightforward Darboux transformation one- and two-soliton solutions in a nonlinear…

Other Condensed Matter · Physics 2010-12-30 Zai-Dong Li , Qiu-Yan Li , Zhan-Guo Bai , Yubao Sun

We report evidence for spin-rotation coupling in $p$-wave Feshbach resonances in an ultracold mixture of fermionic $^6$Li and bosonic $^{133}$Cs lifting the commonly observed degeneracy of states with equal absolute value of…

We study the negative couplings amid local resonances of photonic metasurfaces. In our analysis, we discover pseudo-spin-orbit coupled bulk modes leading to lines of circularly polarized radiation eigenstates in two-dimensional momentum…

Optics · Physics 2022-02-25 Wenlong Gao , Basudeb Sain , Thomas Zentgraf