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We demonstrate the structural imaging of magnetostatic spin-wave modes hosted in a millimeter-sized ferromagnetic sphere. Unlike for low-dimensional magnetic materials, there is no prior technique to image these modes in bulk magnetized…

Materials Science · Physics 2019-08-07 Arnaud Gloppe , Ryusuke Hisatomi , Yosuke Nakata , Yasunobu Nakamura , Koji Usami

The spectrum of hybrid electromagnetic-spin-acoustic waves for magnetic having conical spiral ferromagnetic structure defined by heterogeneous exchange and relativistic interactions have been received. The possibility of resonant…

Other Condensed Matter · Physics 2012-12-03 Igor V. Bychkov , Dmitry A. Kuzmin , Vladimir G. Shavrov

The physical processes taking place at the surface and near the surface of solids is so rich and versatile that sometimes they seem to be the inexhaustible subject of fundamental research. In particular, since the discovery by Lord Rayleigh…

Materials Science · Physics 2017-07-19 Eugene A. Eliseev , Anna N. Morozovska , Maya D. Glinchuk , Sergei V. Kalinin

The surface acoustic wave (SAWs) attenuation coefficient $\Gamma$ and the velocity change $\Delta V /V$ were measured for $p$-type Si/SiGe heterostructures in the temperature range 0.7 - 1.6 K as a function of external magnetic field $H$ up…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 G. O. Andrianov , I. L. Drichko , A. M. Diakonov , I. Yu. Smirnov , O. A. Mironov , M. Myronov , T. E. Whall , D. R. Leadley

We report broadband spectroscopy and numerical analysis by which we explore propagating spin waves in a magnetic bilayer consisting of a 23 nm thick permalloy film deposited on 130 nm thick $Y_{3}Fe_{5}O_{12}$. In the bilayer, we observe a…

Applied Physics · Physics 2019-04-03 Kyongmo An , Vinayak Bhat , Michal Mruczkiewicz , Carsten Dubs , Dirk Grundler

Excitation of magnons or spin-waves driven by nominally unpolarized transport currents in point contacts of normal and ferromagnetic metals is probed by irradiating the contacts with microwaves. Two characteristic dynamic effects are…

Materials Science · Physics 2009-11-13 O. P. Balkashin , V. V. Fisun , I. K. Yanson , L. Yu. Triputen , A. Konovalenko , V. Korenivski

The spin-motive force (SMF) in a simple ferromagnetic monolayer caused by a surface acoustic wave is studied theoretically via spin-vorticity coupling (SVC). The SMF has two mechanisms. The first is the SVC-driven SMF, which produces the…

Mesoscale and Nanoscale Physics · Physics 2022-02-22 Takumi Funato , Mamoru Matsuo

We present a comprehensive theoretical and experimental study of voltage-controlled standing spin waves resonance (SSWR) in PMN-PT/NiFe multiferroic heterostructures patterned into microstrips. A spin-diode technique was used to observe…

Materials Science · Physics 2017-01-04 Slawomir Zietek , Jakub Checinski , Marek Frankowski , Witold Skowronski , Tomasz Stobiecki

The coupling of micro- or nanomechanical resonators via a shared substrate is intensively exploited to built systems for fundamental studies and practical applications. So far, the focus has been on devices operating in the kHz regime with…

Applied Physics · Physics 2021-08-30 Hendrik Kähler , Daniel Platz , Silvan Schmid

Electroluminescence emission from surface acoustic wave-driven light-emitting diodes (SAWLEDs) is studied by means of time-resolved techniques. We show that the intensity of the SAW-induced electroluminescence is modulated at the SAW…

Other Condensed Matter · Physics 2009-11-11 Marco Cecchini , Vincenzo Piazza , Fabio Beltram , D. G. Gevaux , M. B. Ward , A. J. Shields , H. E. Beere , D. A. Ritchie

The linear and nonlinear interactions between spin waves (magnons) and acoustic waves (phonons) in magnetostrictive materials provide an exciting opportunity for realizing novel microwave signal processing devices and spintronic circuits.…

Mesoscale and Nanoscale Physics · Physics 2017-02-21 Pratim Chowdhury , Albrecht Jander , Pallavi Dhagat

The propagation of a surface acoustic wave (SAW) on GaAs/AlGaAs heterostructures is studied in the case where the two-dimensional electron gas (2DEG) is subject to a strong magnetic field and a smooth random potential with correlation…

Mesoscale and Nanoscale Physics · Physics 2009-10-28 Andreas Knaebchen , Yehoshua Levinson , Ora Entin-Wohlman

Magnetic Heusler materials with very low Gilbert damping are expected to show novel magnonic transport phenomena. We report nonlinear generation of higher harmonics leading to the emission of caustic spin-wave beams in a low-damping,…

Mesoscale and Nanoscale Physics · Physics 2013-02-19 T. Sebastian , P. Pirro , T. Kubota , T. Brächer , A. A. Serga , H. Naganuma , M. Oogane , Y. Ando , B. Hillebrands

We demonstrate using micromagnetic simulations that a nanomagnet array excited by Surface Acoustic Waves (SAWs) can work as a reservoir that can classify sine and square waves with high accuracy. To evaluate memory effect and computing…

Low dissipation data processing with spins is one of the promising directions for future information and communication technologies. Despite a signifcant progress, the available magnonic devices are not broadband yet and have restricted…

Mesoscale and Nanoscale Physics · Physics 2017-07-18 Antonio Lara , Javier Robledo Moreno , Konstantin Y. Guslienko , Farkhad G. Aliev

Non-reciprocal propagation of sound, that is, the different transmission of acoustic waves traveling along opposite directions, is a challenging requirement for the realization of devices like acoustic isolators and circulators. Here, we…

Applied Physics · Physics 2020-04-15 A. Hernández-Mínguez , F. Macià , J. M. Hernàndez , J. Herfort , P. V. Santos

We show on in-plane magnetized thin films that magnetization can be switched efficiently by 180 degrees using large amplitude Rayleigh waves travelling along the hard or easy magnetic axis. Large characteristic filament-like domains are…

Laser-generated surface acoustic waves (SAW) facilitate efficient information processing in modern spintronics and magnonics. The ability to tune the SAW parameters such as amplitude is crucial to achieve acoustic control over magnonic…

Surface-acoustic-wave (SAW) based devices have emerged as a promising technology in magnetic field sensing by integrating a magnetostrictive layer with the giant {\Delta}E/{\Delta}G effect. However, almost all SAW magnetic field sensors…

Applied Physics · Physics 2022-06-07 Wenbin Hu , Mingxian Huang , Huaiwu Zhang , Feiming Bai

Here we propose a method of the excitation of perpendicular standing spin waves (PSSWs) of different orders in an optomagnonic microcavity by ultrashort laser pulses. The microcavity is formed by a magnetic dielectric film surrounded by…

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