91 citations · 404 across the 12 of their papers we have counts for
8 papers · 1 filter
Controllable switching of vortex chirality in magnetic nanodisks by a field pulse
Yuri Gaididei, Denis D. Sheka, Franz G. Mertens
We propose a way of fast switching the chirality in a magnetic nanodisk by applying a field pulse. To break the symmetry with respect to clockwise or counterclockwise chirality a m…
Switching of the vortex polarity in a magnetic nanodisk by a DC current
Denis D. Sheka, Yuri Gaididei, Franz G. Mertens
We study the dynamics of a vortex state nanodisk due to a dc spin current, perpendicular to the disk plane. The irreversible switching of the vortex polarity takes place above some…
Effective anisotropy of thin nanomagnets: beyond the surface anisotropy approach
Jean-Guy Caputo, Yuri Gaididei, Volodymyr P. Kravchuk +2
We study the effective anisotropy induced in thin nanomagnets by the nonlocal demagnetization field (dipole-dipole interaction). Assuming a magnetization independent of the thickne…
Controlled vortex core switching in a magnetic nanodisk by a rotating field
Volodymyr P. Kravchuk, Denis D. Sheka, Yuri Gaididei +1
The switching process of the vortex core in a Permalloy nanodisk affected by a rotating magnetic field is studied theoretically. A detailed description of magnetization dynamics is…
Quantum effects for the 2D soliton in isotropic ferromagnets
Boris A. Ivanov, Denis D. Sheka, Vasilii V. Krivonos +1
We evaluate a zero-point quantum correction to a Belavin-Polyakov soliton in an isotropic 2D ferromagnet. By revising the scattering problem of quasi-particles by a soliton we show…
Dynamics of topological solitons in two-dimensional ferromagnets
Denis D. Sheka, Christian Schuster, Boris A. Ivanov +1
Dynamical topological solitons are studied in classical two-dimensional Heisenberg easy-axis ferromagnets. The properties of such solitons are treated both analytically in the cont…