New closed flux stripe domain model for weak perpendicular magnetic anisotropy films.
- Resource Type
- Article
- Authors
- de Abril, Oscar; Sánchez, María del Carmen; Aroca, Claudio
- Source
- Applied Physics Letters. 10/23/2006, Vol. 89 Issue 17, p172510. 3p. 1 Diagram, 1 Graph.
- Subject
- *PROPERTIES of matter
*MAGNETIC films
*MAGNETIC materials
*MAGNETIC flux
*MAGNETIC properties
*ANISOTROPY
- Language
- ISSN
- 0003-6951
A new closed flux stripe domain model is proposed to gain more insight into the magnetic behavior of films with weak perpendicular magnetic anisotropy (PMA). Its main novelty is a new flux-closure pattern in which magnetic flux follows semicircular paths. This approximation has been inspired by the magnetization distribution obtained by some researchers by micromagnetic numerical simulation for this kind of film. This model arises as a good alternative to models based on the Landau-Lifshitz closure pattern and fits rather well the recently observed enlargement of the surface coercivity of strips with weak PMA under the in-plane demagnetizing field effect. [ABSTRACT FROM AUTHOR]