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We develop an advanced analytical model for calculating the broadband stripline ferromagnetic resonance (FMR) response for metallic ferromagnetic films, taking into account the exchange interaction as well as the exchange boundary…

Materials Science · Physics 2016-11-10 Rihan Hai , Mikhail Kostylev

We constructed a quasi-analytical self-consistent model of the stripline-based broadband ferromagnetic resonance (FMR) measurements of ferromagnetic films. Exchange-free description of magnetization dynamics in the films allowed us to…

Materials Science · Physics 2016-01-20 Mikhail Kostylev

We investigate how controlling induced eddy currents in thin film ferromagnet-normal metal (FM/NM) structures can be used to tailor the local microwave (MW) fields in ferromagnetic resonance (FMR) experiments. The MW fields produced by eddy…

Mesoscale and Nanoscale Physics · Physics 2016-05-25 Vegard Flovik , Bjørn Holst Pettersen , Erik Wahlström

Broadband FMR responses for metallic single-layer and bi-layer magnetic films with total thicknesses smaller than the microwave magnetic skin depth have been studied. Two different types of microwave transducers were used to excite and…

Materials Science · Physics 2015-05-14 K. J. Kennewell , M. Kostylev , R. Magaraggia , R. L. Stamps , M. Ali , A. A. Stashkevich , D. Greig , B. J. Hickey

We investigate the effect of eddy currents on ferromagnetic resonance (FMR) in ferromagnet-normal metal (FM/NM) bilayer structures. Eddy-current effects are usually neglected for NM layer thicknesses below the microwave (MW) skin depth…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 Vegard Flovik , Ferran Macià , Andrew D. Kent , Erik Wahlström

Exchange-coupled nonmagnetic (NM) and ferromagnetic (FM) conducting multilayers are crucial for microwave spintronic devices of the future. We demonstrate, experimentally and theoretically, that in broadband measurements of ferromagnetic…

Materials Science · Physics 2014-10-03 Ivan S. Maksymov , Zhaoyang Zhang , Crosby Chang , Mikhail Kostylev

Ferromagnetic resonance in conducting magnetic bilayers was studied using microstrip transducers. It was found that excitation or suppression of standing spin waves could be achieved through enhanced inhomogeneity of eddy currents in the…

Materials Science · Physics 2009-09-01 M. Kostylev , K. J. Kennewell , R. Magaraggia , R. L. Stamps , M. Ali , B. J. Hickey

Peculiarities of ferromagnetic resonance response of conducting magnetic bi-layer films of nanometric thicknesses excited by microstrip microwave transducers have been studied theoretically. Strong asymmetry of the response has been found.…

Materials Science · Physics 2015-05-13 M. Kostylev

We propose a rigorous solution to a long-standing problem of the impact of eddy currents on the dispersion relation of surface spin waves propagating in thin conducting magnetic films. Our results confirm the prediction of the…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 Ivan S. Maksymov , Mikhail Kostylev

We present room temperature ferromagnetic resonance (FMR) studies of polycrystalline ||Pt/10 nm Cu/t Co/10 nm Cu/Pt|| films as a function of Co layer thickness (1 < t < 10 nm) grown by evaporation and magnetron sputtering. FMR was studied…

Materials Science · Physics 2007-07-10 J-M. L. Beaujour , W. Chen , A. D. Kent , J. Z. Sun

Permalloy films with one-dimensional (1D) profile modulation of submicron periodicity are fabricated based on commercially available DVD-R discs and studied using ferromagnetic resonance (FMR) method and micromagnetic numerical simulations.…

In this work we carried out systematic experimental and theoretical investigations of the ferromagnetic (FMR) response of quasi-two-dimensional magnetic nano-objects - microscopically long nanostripes made of ferromagentic metals. We were…

Materials Science · Physics 2016-04-20 M. Kostylev , Z. Yang , I. S. Maksymov , J. Ding , S. Samarin , A. O. Adeyeye

Ferromagnetic resonance (FMR) excitation of a ferromagnetic metal single-layer film was tried by using a couple of permanent magnets as the source of the uniform static magnetic field and by using a co-planer waveguide connected with a…

Applied Physics · Physics 2024-10-30 Ryutoku Fujii , Eiji Shikoh

We describe synthesis of submicron Y3Fe5O12 (YIG) films sputtered on GaAs-based substrates and present results of the investigation of ferromagnetic resonance (FMR), spin wave propagation and interaction between spin excitations and 2D…

Mesoscale and Nanoscale Physics · Physics 2018-08-29 L. V. Lutsev , A. I. Stognij , N. N. Novitskii , V. E. Bursian , A. Maziewski , R. Gieniusz

The phenomenon of ferromagnetic resonance (FMR) provides fundamental information on the physics of magnetic materials and lies at the heart of a variety of signal processing microwave devices. Here we demonstrate theoretically that…

Materials Science · Physics 2011-10-18 N. A. Pertsev , H. Kohlstedt , R. Knoechel

We analyze the effects of lateral device size and magnetic material parameters on the ferromagnetic resonance (FMR) response. Results presented are directly relevant to widely used FMR experimental techniques for extracting magnetic…

Mesoscale and Nanoscale Physics · Physics 2013-01-01 Kwaku Eason , Maria Sabino , Michael Tran , Yun Fook Liew

For a thin ferromagnetic film with the Dzyaloshinskii-Moriya interaction (DMI), we derive an expression of the extrinsic ferromagnetic resonance (FMR) linewidth in a quantum mechanical way, taking into account scatterings from structural…

Materials Science · Physics 2018-01-31 Jung Hyun Oh , Ik-Sun Hong , Kyung-Jin Lee

Magneto-mechanical transmitters offer a compact and low-power solution for the generation of ultra-low frequency (ULF) magnetic signals for through-ground and through-seawater communications. Resonant arrays of smaller magneto-mechanical…

Applied Physics · Physics 2023-04-19 Jiheng Jing , Sameh Tawfick , Gaurav Bahl

Transition metal ferromagnetic films with perpendicular magnetic anisotropy (PMA) have ferromagnetic resonance (FMR) linewidths that are one order of magnitude larger than soft magnetic materials, such as pure iron (Fe) and permalloy (NiFe)…

Materials Science · Physics 2009-12-14 J-M. Beaujour , D. Ravelosona , I. Tudosa , E. Fullerton , A. D. Kent

In the field of spintronics, ferromagnetic/non-magnetic metallic multilayers are core building blocks for emerging technologies. Resonance experiments using stripline transducers are commonly used to characterize and engineer these stacks…

Mesoscale and Nanoscale Physics · Physics 2019-07-19 O. Gladii , R. L. Seeger , L. Frangou , G. Forestier , U. Ebels , S. Auffret , V. Baltz
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