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On the Effect of Magnetostatic Interaction on the Collective Motion of Vortex Domain Walls in a Pair of Nanostripes
Author(s) -
Orlov Vitaly A.,
Ivanov Anatoly A.,
Orlova Iri.
Publication year - 2019
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201900113
Subject(s) - vortex , condensed matter physics , magnetization , physics , polarity (international relations) , domain wall (magnetism) , magnetic domain , micromagnetics , domain (mathematical analysis) , magnetic field , motion (physics) , resonance (particle physics) , classical mechanics , mechanics , quantum mechanics , chemistry , mathematical analysis , biochemistry , mathematics , cell
The periodic motion of interacting vortex domain walls in a pair of nanostripes has been analytically and numerically investigated. A model consisting of two parallel nanostripes with the domain magnetization structure has been proposed, where domains are separated by vortex walls. The magnetic subsystems of the stripes magnetostatically interact, which causes the existence of normal magnetic vortex motion modes in the latter. Frequencies of the collective magnetization modes have been calculated using empirical expressions for the magnetic energy of interaction between vortex walls. It is shown that not any combinations of the polarity and chirality lead to the resonance magnetization behavior in ac fields.