48 citations · 177 across the 21 of their papers we have counts for
21 papers
All-electrical operation of a Curie-switch at room temperature
Vadym Iurchuk, Oleksii Kozlov, Serhii Sorokin +6
We present all-electrical operation of a FeCr-based Curie switch at room temperature. More specifically, we study the current-induced thermally-driven transition from f…
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.…
Temperature and thickness dependent magnetostatic properties of [Fe/Py]/FeMn/Py multilayers
D. M. Polishchuk, O. I. Nakonechna, Ya. M. Lytvynenko +6
The magnetic properties of thin-film multilayers [Fe/Py]/FeMn/Py are investigated as a function of temperature and thickness of the antiferromagnetic FeMn spacer using SQUID magnet…
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-dependent scattering and magnetic proximity effect in Ni-doped Co/Cu multilayers as a probe of atomic magnetism
Yu O Tykhonenko-Polishchuk, D M Polishchuk, T I Polek +5
We investigate the spin transport and ferromagnetic resonance properties of giant magnetoresistive (GMR) Co/Cu-Ni multilayers with variable levels of Ni doping in the Cu spacer. We…
Giant magnetocaloric effect driven by indirect exchange in magnetic multilayers
D. M. Polishchuk, Yu. O. Tykhonenko-Polishchuk, E. Holmgren +3
Indirect exchange coupling in magnetic multilayers, also known as the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, is known to be highly effective in controlling the interlaye…
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…
Thermal switching of indirect interlayer exchange in magnetic multilayers
D. M. Polishchuk, Yu. O. Tykhonenko-Polishchuk, A. F. Kravets +1
We propose a magnetic multilayer layout, in which the indirect exchange coupling (IEC also known as RKKY) can be switched on and off by a slight change in temperature. We demonstra…
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…
Ferromagnetic resonance and interlayer exchange coupling in magnetic multilayers with compositional gradients
D. M. Polishchuk, A. F. Kravets, Yu. O. Tykhonenko-Polishchuk +2
Ferromagnetic resonance (FMR) in magnetic multilayers of type F1/f/F2, where two strongly ferromagnetic layers F1 and F2 are separated by a weakly magnetic spacer f with a composit…
Effect of nanostructure layout on spin pumping phenomena in antiferromagnet/ nonmagnetic metal/ ferromagnet multilayered stacks
A. F. Kravets, Olena V. Gomonay, D. M. Polishchuk +4
In this work we focus on magnetic relaxation in MnIr(12 nm)/ Cu(6 nm)/ Py() antiferromagnet/Cu/ferromagnet (AFM/Cu/FM) multilayers with different thickn…
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$…
Temperature-controlled interlayer exchange coupling in strong/weak ferromagnetic multilayers: a thermo-magnetic Curie-switch
A. Kravets, A. N. Timoshevskii, B. Z. Yanchitsky +4
We investigate a novel type of interlayer exchange coupling based on driving a strong/weak/strong ferromagnetic tri-layer through the Curie point of the weakly ferromagnetic spacer…
Exchange-induced phase separation in Ni-Cu films
Anatolii Kravets, Andrey Timoshevskii, Bogdan Yanchitsky +4
Magneto-structural properties of films of diluted ferromagnetic alloys NiCu in the concentration range are studied experimentally. Films deposited by ma…