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- Title
Periodic instantons and domain structure in a ferromagnetic film.
- Authors
Zheng, G.-P.; Liang, J.-Q.; Nie, Y.-H.; Yin, W.
- Abstract
We in this paper study periodic instantons and domain structures in a theoretical film consisting of biaxial-anisotropic ferromagnets. In a proper approximation the equation of motion of the magnetization vector as a space-time function in the film is reduced to the 1 + 2-dimensional sine-Gordon field equation in strong anisotropy limit. Static periodic instantons, which are solutions of Euclidean field equantion, and various new domain structures are obtained analytically. We also investigate the energy density and stability of the periodic instantons.
- Subjects
INSTANTONS; MAGNETIC domain; FERROMAGNETIC materials; FERROMAGNETISM; MAGNETIC films; MAGNETIZATION
- Publication
European Physical Journal B: Condensed Matter, 2003, Vol 36, Issue 2, p215
- ISSN
1434-6028
- Publication type
Article
- DOI
10.1140/epjb/e2003-00338-5