48 citations · 177 across the 21 of their papers we have counts for
12 papers · 1 filter
Antiferromagnet-mediated interlayer exchange: hybridization versus proximity effect
D. M. Polishchuk, Yu. O. Tykhonenko-Polishchuk, Ya. M. Lytvynenko +6
We investigate the interlayer coupling between two thin ferromagnetic (F) films mediated by an antiferromagnetic (AF) spacer in F*/AF/F trilayers and show how it transitions betwee…
Spin-wave Resonance in Arrays of Nanoscale Synthetic-antiferromagnets
Vladyslav Borynskyi, Dmytro Polishchuk, Iryna Sharai +4
The study concerns dynamics of standing spin waves in arrays of sub-100 nm elliptic synthetic-antiferromagnet (SAF) nanodisks. We performed a detailed ferromagnetic resonance analy…
Proximity-Enhanced Magnetocaloric Effect in Ferromagnetic Trilayers
Milton Persson, Mykola Kulyk, Anatolii Kravets +1
The demagnetization and associated magnetocaloric effect in strong-weak-strong ferromagnetic trilayers, upon a reorientation of the strong ferromagnets from parallel to antiparalle…
Fast barrier-free switching in synthetic antiferromagnets
Yu. Dzhezherya, V. Kalita, P. Polynchuk +4
We analytically solve the Landau-Lifshitz equations for the collective magnetization dynamics in a synthetic antiferromagnet (SAF) nanoparticle and uncover a regime of barrier-free…
Higher-order ferromagnetic resonances in periodic arrays of synthetic-antiferromagnet nanodiscs
V. Yu. Borynskyi, D. M. Polishchuk, A. K. Melnyk +3
We investigate spin dynamics in nanodisc arrays of synthetic-antiferromagnets (SAF) made of Py/NiCu/Py trilayers, where the NiCu spacer undergoes a Curie transition at about 200 K.…
Magnetic proximity effect induced FMR frequency enhancement in {Py/FeMn} bilayers
Dmytro M. Polishchuk, Taras I. Polek, Vladyslav Yu. Borynskyi +3
Ferromagnetic resonance (FMR) in exchange-coupled ferromagnet-antiferromagnet (FM/AFM) bilayers commonly shows a moderate increase in the resonance frequency owing to the induced u…
Spin relaxation in multilayers with synthetic ferrimagnets
Dmytro M. Polishchuk, Taras I. Polek, Akashdeep Kamra +4
We demonstrate a strong tunability of the spin-pumping contribution to magnetic damping in a thin-film ferromagnetic free layer interfaced with a synthetic ferrimagnet (SFM), actin…
Magnetic hysteresis in nanostructures with thermally-controlled RKKY coupling
D. M. Polishchuk, Yu. O. Tykhonenko-Polishchuk, V. Yu. Borynskyi +3
Mechanisms of the recently demonstrated ex-situ thermal control of the indirect exchange coupling in magnetic multilayer are discussed for different designs of the spacer layer. Te…
Current-driven thermo-magnetic switching in magnetic tunnel junctions
A. F. Kravets, D. M. Polishchuk, V. A. Pashchenko +2
We investigate switching of magnetic tunnel junctions (MTJs) driven by the thermal effect of the transport current through the junctions. The switching occurs in a specially design…
Thermally induced antiferromagnetic exchange in magnetic multilayers
D. M. Polishchuk, Yu. O. Tykhonenko-Polishchuk, E. Holmgren +2
We demonstrate sharp thermally-induced switching between ferromagnetic and antiferromagnetic RKKY exchange in a spin-valve with the spacer incorporating a thin diluted ferromagneti…
Anisotropic magnetization relaxation in ferromagnetic multilayers with variable interlayer exchange coupling
A. F. Kravets, D. M. Polishchuk, Yu. I. Dzhezherya +3
The FMR linewidth and its anisotropy in F/f/F/AF multilayers, where spacer f has a low Curie point compared to the strongly ferromagnetic F and F, is investigated.…
Spin dynamics in a Curie-switch
A. F. Kravets, A. I. Tovstolytkin, Yu. I. Dzhezherya +3
Ferromagnetic resonance properties of F/f/F/AF multilayers, where weakly ferromagnetic spacer f is sandwiched between strongly ferromagnetic layers F and F, with F$…