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Spin pumping is a microwave-driven means for injecting spins from a ferromagnet into the adjacent target material. The insertion of a thin antiferromagnetic layer between the ferromagnet and the target material is known to enhance the spin…

Mesoscale and Nanoscale Physics · Physics 2025-12-02 Yuto Furutani , Hayato Fukushima , Yutaka Yamamoto , Masanori Ichioka , Hiroto Adachi

We study the frequency non-reciprocity of the spin waves in symmetric CoFeB/Ru/CoFeB synthetic antiferromagnets stacks set in the scissors state by in-plane applied fields. Using a combination of Brillouin Light Scattering and propagating…

Materials Science · Physics 2026-03-23 F. Millo , J. -P. Adam , C. Chappert , J. -V. Kim , A. Mouhoub , A. Solignac , T. Devolder

Herein, we study the spin-wave dispersion and dissipation in a ferromagnetic insulator--normal metal--ferromagnetic insulator system. Long-range dynamic coupling because of spin pumping and spin transfer lead to collective magnetic…

Mesoscale and Nanoscale Physics · Physics 2014-11-25 Hans Skarsvag , Andre Kapelrud , Arne Brataas

Spin waves are attractive information carriers owing to their gigahertz-to-terahertz frequencies, nanometric wavelengths, and negligible Joule heating. Yet the efficient excitation of short-wavelength, high-frequency spin waves and the…

Mesoscale and Nanoscale Physics · Physics 2025-09-10 Mathieu Moalic , Youenn Patat , Mateusz Zelent , Maciej Krawczyk

We investigate ferromagnetic resonance (FMR) modulation in $d$-wave superconductor (SC)/ferromagnetic insulator (FI) bilayer systems theoretically. The modulation of the Gilbert damping in these systems reflects the existence of nodes in…

Mesoscale and Nanoscale Physics · Physics 2022-05-06 Yuya Ominato , Ai Yamakage , Takeo Kato , Mamoru Matsuo

Spin-orbit torque (SOT) created by a spin current injected into a ferromagnet by an adjacent heavy metal represents an efficient tool for the excitation and manipulation of spin waves. Here we report the micromagnetic simulations describing…

Mesoscale and Nanoscale Physics · Physics 2023-10-20 Andrei I. Nikitchenko , Nikolay A. Pertsev

Superradiance is a phenomenon of multiple facets that occurs in classical and quantum physics under extreme conditions. Here we present its manifestation in spin waves under an easily realized condition. We show that an interface between a…

Mesoscale and Nanoscale Physics · Physics 2023-08-03 X. R. Wang , X. Gong , K. Y. Jing

We demonstrate a scalable new ferromagnetic resonance (FMR) technique based on the spin-orbit interaction. An alternating current drives FMR in uniform ferromagnetic structures patterned from the dilute magnetic semiconductors (Ga,Mn)As and…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 D. Fang , H. Kurebayashi , J. Wunderlich , K. Vyborny , L. P. Zarbo , R. P. Campion , A. Casiraghi , B. L. Gallagher , T. Jungwirth , A. J. Ferguson

We studied the dynamics of magnetization through an investigation of the magnetoimpedance effect in CoFeB/(Ta, Ag, Cu) multilayered thin films grown by magnetron sputtering. Impedance measurements were analyzed in terms of the mechanisms…

Materials Science · Physics 2015-05-28 M. S. Marques , T. Mori , L. F. Schelp , C. Chesman , F. Bohn , M. A. Correa

Dynamic properties of NiFe thin films on PMN-PT piezoelectric substrate are investigated using the spin-diode method. Ferromagnetic resonance (FMR) spectra of microstrips with varying width are measured as a function of magnetic field and…

Ferromagnetic resonance (FMR) spin pumping is a rapidly growing field which has demonstrated promising results in a variety of material systems. This technique utilizes the resonant precession of magnetization in a ferromagnet to inject…

Materials Science · Physics 2014-03-05 A. J. Berger , W. Amamou , S. P. White , R. Adur , Y. Pu , R. K. Kawakami , P. C. Hammel

Three-dimensional (3D) topological insulators are known for their strong spin-orbit coupling and the existence of spin-textured topological surface states which could be potentially exploited for spintronics. Here, we investigate spin…

Mesoscale and Nanoscale Physics · Physics 2014-07-31 Mahdi Jamali , Joon Sue Lee , Yang Lv , Zhengyang Zhao , Nitin Samarth , Jian-Ping Wang

Boundary conditions for order parameters at an interface between ferromagnetic (FM) and two-sublattice antiferromagnetic (AFM) materials were obtained in the continuous medium approximation similarly to the approach which allows one to take…

Applied Physics · Physics 2020-03-10 Oksana Busel , Oksana Gorobets , Yuri Gorobets

We investigated the dependence of the seed [Ta/Pt, Ta/Au] and capping [Pt/Ta, Au/Ta] layers on spin pumping effect in the ferromagnetic 3 nm thick Co thin film using ferromagnetic resonance spectroscopy. The data is fitted with Kittel…

Mesoscale and Nanoscale Physics · Physics 2017-09-13 Braj Bhusan Singh , Sukanta Kumar Jena , Subhankar Bedanta

Patterned magnetic nanostructures are advanced materials characterized by their unique magnetic properties at the nanoscale, which are the result of tailored geometric configurations and compositional engineering. As interest in…

Mesoscale and Nanoscale Physics · Physics 2025-01-03 Oleksandr Dobrovolskiy , Gleb Kakazei

Ferro- and ferrimagnets play host to small-signal, microwave-frequency magnetic excitations called spin waves, the quanta of which are known as magnons. Over the last decade, the field of spin-wave dynamics has contributed much to our…

Mesoscale and Nanoscale Physics · Physics 2015-02-24 Alexy D. Karenowska , Andrew D. Patterson , Michael J. Peterer , Einar B. Magnússon , Peter J. Leek

Recently, canted antiferromagnets offer great potential for fundamental research and applications due to their unique properties. The presence of the Dzyaloshinskii-Moriya interaction leads to the existence of a weak ferromagnetic moment at…

In this work, we investigate the spin-wave propagation in three-dimensional nanoscale CoFeB/Ta/NiFe meander structures fabricated on a structured SiO2/Si substrate. The magnonic band structure has been experimentally determined by…

Mesoscale and Nanoscale Physics · Physics 2021-04-28 G. Gubbiotti , A. Sadovnikov , E. Beginin , S. Sheshukova , S. Nikitov , G. Talmelli , I. Asselberghs , I. P. Radu , C. Adelmann , F. Ciubotaru

The use of the spin Hall effect and its inverse to electrically detect and manipulate dynamic spin currents generated via ferromagnetic resonance (FMR) driven spin pumping has enabled the investigation of these dynamically injected currents…

Efficient coupling between magnons and phonons requires material platforms that contain magnetic multilayers with versatile high-frequency properties grown on piezoelectric substrates with large electromechanical coupling coefficients. One…

Materials Science · Physics 2024-11-28 G. Y. Thiancourt , S. M. Ngom , N. Bardou , T. Devolder