- 著者
-
能崎 幸雄
松山 公秀
小野 輝男
宮島 英紀
- 出版者
- 公益社団法人 日本磁気学会
- 雑誌
- 日本応用磁気学会誌 (ISSN:02850192)
- 巻号頁・発行日
- vol.23, no.4, pp.1121-1124, 1999
- 被引用文献数
-
1
The micromagnetic structure of the 180° domain wall in submicron-size ferromagnetic Co wires was investigated by means of magnetic force microscopy. The wall width δ (∼μm) observed in Co wire is much larger than that observed in Co films of the same thickness. From micromagnetic calculation using the Landau-Lifshitz-Gilbert (LLG) equation, the magnetic structure of the 180° wall is expected to be a large vortex accompanied by a magnetic ripple structure. This complicated 180° wall is formed to suppress the demagnetizing energy due to a head-on-head configuration of the magnetization, which results in a micron-scale-wide transition area of the wall. The wire-width dependence of the 180° wall width obtained by micromagnetic calculation is almost consistent with that measured from the magnetic force micrograph.