7 papers · 1 filter
Oscillation modes of skyrmion strings in a ferromagnetic film
Eugene M. Chudnovsky, Dmitry A. Garanin
It is shown that a skyrmion string in a ferromagnetic film consisting of atomic layers exhibits flexural oscillations at eigenfrequencies $|ω_{m}|=(4J'S/\hbar)\sin^{2}[πm/(2N)]…
Barnett effect generated by a rotating electric field in a ferromagnetic film
Jorge F. Soriano, Eugene M. Chudnovsky
We investigate the space-time evolution of the magnetization induced in a 2D ferromagnetic island by a short pulse of a rotating electric field. The field generates elastic twists…
Magnetization, excitations, and microwave power absorption in transition-metal/rare-earth ferrimagnets with disorder
D. A. Garanin, E. M. Chudnovsky
Efficient numerical routines are developed for numerical studies of the dependence of the equilibrium magnetic states, excitations, and microwave power absorption on temperature an…
Dislocation-induced magnetization reversal in a ferromagnetic film
Jorge F. Soriano, Eugene M. Chudnovsky
We demonstrate that moving edge dislocations can induce the reversal of magnetization in a ferromagnetic film due to the Barnett effect. The dynamics of magnetization is studied nu…
Giant Barnett Effect from Moving Dislocations
Eugene M. Chudnovsky, Jorge F. Soriano
We show that moving dislocations generate giant effective local magnetic fields in a crystal lattice that can flip spins. Since massive creation of fast-moving dislocations is asso…
Skyrmion Crystal in a Microwave Field
D. A. Garanin, E. M. Chudnovsky
Temperature and field dependences of the frequencies of uniform modes of the skyrmion lattice in a 2D ferromagnetic film with Dzyaloshinskii-Moriya interaction, as well as their da…