Complexes of Domain Walls in Ferromagnetic Stripes

• Authors: A. Janutka
• Languages of publication: EN

Abstracts

EN

Interaction of domain walls in ferromagnetic stripes is studied with relevance to the formation of stable complexes of many domains. Two domain wall system is described with the Landau-Lifshitz-Gilbert equation including regimes of narrow and wide stripes which correspond the presence of transverse and vortex domain walls. The domain walls of both kinds are characterized with their chiralities (the direction of the magnetization rotation in the stripe plane) and polarities (the magnetization orientation in the center of a vortex and/or halfvortices), hence, their interactions are analyzed with dependence on these properties. In particular, pairs of the domain walls of opposite or like chiralities and polarities are investigated as well as pairs of opposite (like) chiralities and of like (opposite) polarities. Conditions of the creation of stationary bubbles built of two interacting domain walls are formulated with relevance to the situations of presence and absence of the external magnetic field.

Keywords

EN

05.45.Yv; 75.70.Kw; 75.75.Jn; 75.78.Fg; 85.70.Kh

Discipline

• 75.78.Fg: Dynamics of domain structures
• 75.70.Kw: Domain structure (including magnetic bubbles and vortices)(for domain structure in ferroelectricity and antiferroelectricity, see 77.80.Dj)
• 85.70.Kh: Magnetic thin film devices: magnetic heads (magnetoresistive, inductive, etc.); domain-motion devices, etc.
• 05.45.Yv: Solitons(see 52.35.Sb for solitons in plasma; for solitons in acoustics, see 43.25.Rq—in Acoustics Appendix; see 42.50.Md, 42.65.Tg, 42.81.Dp for solitons in optics; see also 03.75.Lm in matter waves; for solitons in space plasma physics, see 94.05.Fg; for solitary waves in fluid dynamics, see 47.35.Fg)
• 75.75.Jn: Dynamics of magnetic nanoparticles

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 124
• Issue: 4
• Pages: 641-648

Dates

published

2013-10

received

2013-04-16

(unknown)

2013-07-08

Contributors

author

A. Janutka

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

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Identifiers

DOI

10.12693/APhysPolA.124.641