Publications (22)
Hydrogen-modified inverse Spin Hall Effect in palladium-cobalt bi-layer films
S. Watt, R. Cong, C. Lueng +3
The influence of hydrogen gas absorption by the Pd layer of bi-layered films containing Pd and Co layers on the inverse Spin Hall Effect (iSHE) in the material is measured. iSHE is…
Frequency non-reciprocity of surface spin wave in Permalloy thin films
O. Gladii, M. Haidar, Y. Henry +2
Surface spin waves in thin Permalloy films are studied by means of propagative spin wave spectroscopy. We observe a systematic difference of up to several tens of MHz when comparin…
Study of strong photon-magnon coupling in a YIG-film split-ring resonant system
B. Bhoi, T. Cliff, I. S. Maksymov +5
By using the stripline Microwave Vector Network Analyzer Ferromagnetic Resonance and Pulsed Inductive Microwave Magnetometry spectroscopy techniques, we study a strong coupling reg…
Self-organized plane arrays of metallic magnetic elements
M. Kostylev, R. Magaraggia, F. Y. Ogrin +3
We studied the dynamic magnetic properties of plane periodical arrays of circular permalloy nano-dots fabricated using a self-organized mask formed by polysterene nanospheres on th…
Interplay between intra- and inter-nanowires dynamic dipolar interactions in the spin wave band structure of Py/Cu/Py nanowires
G. Gubbiotti, X. Zhou, Z. Haghshenasfard +3
We have studied both experimentally and theoretically the reprogrammable spin wave band structure in Permalloy(10nm)/Cu(5nm)/Permalloy(30nm) nanowire arrays of width w=280 nm and i…
Magnetization pinning in conducting films demonstrated using broadband ferromagnetic resonance
M. Kostylev, A. A. Stashkevich, A. O. Adeyeye +7
The broadband microstrip ferromagnetic resonance technique has been applied for detection and characterization of a magnetic inhomogeneity in a film sample. In the case of a 100nm…
Standing spin-wave mode structure and linewidth in partially disordered perpendicularly magnetized sub-micron Permalloy disc arrays
N. Ross, M. Kostylev, R. L. Stamps
Standing spin wave mode frequencies and linewidths in partially disordered perpendicular magnetized arrays of sub-micron Permalloy discs are measured using broadband ferromagnetic…
One-dimentional magnonic crystal as a medium with magnetically tunable disorder on a periodical lattice
J. Ding, M. Kostylev, A. O. Adeyeye
We show that periodic magnetic nanostructures (magnonic crystals) represent an ideal system for studying excitations on disordered periodical lattices because of the possibility of…
Effect of hydrogen gas on magnetic properties of alloys of ferromagnetic metals with Pd and its application in hydrogen gas sensing
Ivan S. Maksymov, M. Kostylev
The mass-production of fuel-cell vehicles and the eventual transition to the hydrogen economy will require safe, inexpensive and reliable sensors capable of simultaneously detectin…
Interface boundary conditions for dynamic magnetization and spin wave dynamics in a ferromagnetic layer with the interface Dzyaloshinskii-Moriya interaction
M. Kostylev
In this work we derive the interface exchange boundary conditions for the classical linear dynamics of magnetization in ferromagnetic layers with the interface Dzyaloshinskii-Moriy…
Strong asymmetry of microwave absorption by bi-layer conducting ferromagnetic films in the microstrip-line based broadband ferromagnetic resonance
M. Kostylev
Peculiarities of ferromagnetic resonance response of conducting magnetic bi-layer films of nanometric thicknesses excited by microstrip microwave transducers have been studied theo…
Enhancement of the response of non-uniform resonance modes of a nanostructure in the Picoprobe microwave-current injection ferromagnetic resonance
C. S. Chang, A. O. Adeyeye, M. Kostylev +1
The non-uniform standing spin-wave modes in thin magnetic films and nanostructures provide important information about surfaces and buried interfaces. Very often they are lacking i…
Probing La(0.7)Sr(0.3)MnO3 multilayers via spin wave resonances
R. Magaraggia, M. Hambe, M. Kostylev +2
La(0.7)Sr(0.3)MnO3/BiFeO3 and La(0.7)Sr(0.3)MnO3/PbZr20Ti80O3 epitaxial heterostructures have been grown on SrTiO3 substrates. Spin wave resonances are used to study interface prop…
Parametrically squeezed states of microwave magnons in yttrium iron garnet films
M. Kostylev, A. B. Ustinov, A. V. Drozdovskii +2
We demonstrate theoretically, and confirm experimentally, that nonlinear spin waves excited in thin yttrium iron garnet films are good candidates for squeezing vacuum quantum noise…
Microwave magnetic dynamics in ferromagnetic metallic nanostructures lacking inversion symmetry
M. Kostylev, Z. Yang, I. S. Maksymov +3
In this work we carried out systematic experimental and theoretical investigations of the ferromagnetic (FMR) response of quasi-two-dimensional magnetic nano-objects - microscopica…
Dynamic pinning at a Py/Co interface measured using inductive magnetometry
K. J. Kennewell, M. Kostylev, R. Magaraggia +5
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…
Collective spin excitations in bi-component magnonic crystals consisting of bi-layer Permalloy/Fe nanowires
G. Gubbiotti, S. Tacchi, M. Madami +5
In the developing field of magnonics,it is very important to achieve tailoring of spin wave propagation by both a proper combination of materials with different magnetic properties…
Formation of quasi-solitons in transverse confined ferromagnetic film media
A. A. Serga, M. Kostylev, B. Hillebrands
The formation of quasi-2D spin-wave waveforms in longitudinally magnetized stripes of ferrimagnetic film was observed by using time- and space-resolved Brillouin light scattering t…
Brillouin light scattering studies of planar metallic magnonic crystals
G. Gubbiotti, S. Tacchi, M. Madami +3
The application of Brillouin light scattering to the study of the spin-wave spectrum of one- and two-dimensional planar magnonic crystals consisting of arrays of interacting stripe…
Microwave screening by conduction currents in thin magnetic films: application in stripline broadband FMR
M. Kostylev, K. J. Kennewell, R. Magaraggia +3
Ferromagnetic resonance in conducting magnetic bilayers was studied using microstrip transducers. It was found that excitation or suppression of standing spin waves could be achiev…
Non-reciprocity of spin wave propagation induced by the interface Dzyaloshinskii-Moriya interaction in Py/Pt film structures
A. A. Stashkevich, M. Belmeguenai, Y. Roussigné +6
Results of a comprehensive study by means of Brillouin spectroscopy, complemented by Ferromagnetic Resonance characterization, of spin waves (SW) propagating in Py/Pt bi-layers, ch…
Roadmap on Spin-Wave Computing
A. V. Chumak, P. Kabos, M. Wu +113
Magnonics is a field of science that addresses the physical properties of spin waves and utilizes them for data processing. Scalability down to atomic dimensions, operations in the…