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19982026
most citedAn unidentified line in X-ray spectra of the Andromeda galaxy and Perseus galaxy cluster

688 citations

Showing cond-mat.mes-hallShow all

9 papers · 1 filter

cond-mat.mes-hall2018★ 16 cited

Magnetization induced shape transformations in flexible ferromagnetic rings

Yuri Gaididei, Kostiantyn V. Yershov, Denis D. Sheka +2

Flexible ferromagnetic rings are spin-chain magnets, in which the magnetic and mechanical subsystems are coupled. The coupling is achieved through the tangentially oriented anisotr…

cond-mat.mes-hall2018★ 62 cited

Geometry-induced motion of magnetic domain walls in curved nanostripes

Kostiantyn V. Yershov, Volodymyr P. Kravchuk, Denis D. Sheka +3

Dynamics of topological magnetic textures are typically induced externally by, e.g.~magnetic fields or spin/charge currents. Here, we demonstrate the effect of the internal-to-the-…

cond-mat.mes-hall2016★ 4 cited

Nonlocal effects in metallic nanoparticles: the kinetic approach outlook

P. M. Tomchuk, D. V. Butenko

For the metallic nanoparticles, smaller than the free electron path, an impact of the particle's surface on the nonlocal effects emerging is shown. Light-induced current inside the…

cond-mat.mes-hall2015★ 60 cited

Rashba Torque Driven Domain Wall Motion in Magnetic Helices

Oleksandr V. Pylypovskyi, Denis D. Sheka, Volodymyr P. Kravchuk +3

Manipulation of the domain wall propagation in magnetic wires is a key practical task for a number of devices including racetrack memory and magnetic logic. Recently, curvilinear e…

cond-mat.mes-hall2015★ 73 cited

Curvature and torsion effects in the spin-current driven domain wall motion

Kostiantyn V. Yershov, Volodymyr P. Kravchuk, Denis D. Sheka +1

The domain wall motion along a helix-shaped nanowire is studied for the case of spin-current driving via Bazaliy-Zhang-Li mechanism. The analysis is based on collective variable ap…

cond-mat.mes-hall2015★ 95 cited

Curvature induced domain wall pinning

Kostiantyn V. Yershov, Volodymyr P. Kravchuk, Denis D. Sheka +1

It is shown that a local bend of a nanowire is a source of pinning potential for a transversal head-to-head (tail-to-tail) domain wall. Eigenfrequency of the domain wall free oscil…

cond-mat.mes-hall2015★ 61 cited

Torsion induced effects in magnetic nanowires

Denis D. Sheka, Volodymyr P. Kravchuk, Kostiantyn V. Yershov +1

Magnetic helix wire is one of the most simple magnetic systems which manifest properties of both curvature and torsion. There exist two equilibrium states in the helix wire with ea…

cond-mat.mes-hall2014★ 19 cited

Curvature effects in vortex chirality switching

Kostiantyn V. Yershov, Volodymyr P. Kravchuk, Denis D. Sheka +1

A simple mechanism of controllable switching of magnetic vortex chirality is proposed. We consider curvilinear magnetic nanoshells of spherical geometry whose ground state is a vor…

cond-mat.mes-hall2010★ 2 cited

Topological excitations in 2D spin system with high spin

Julia Bernatska, Petro Holod

We construct a class of topological excitations of a mean field in a two-dimensional spin system represented by a quantum Heisenberg model with high powers of exchange interaction.…