Abstract
The domain patterns in a thin ferromagnetic film are investigated in both experiments and numerical simulations. Magnetic domain patterns under a zero field are usually observed after an external magnetic field is removed. It is demonstrated that the characteristics of the domain patterns depend on the decreasing rate of the external field, although it can also depend on other factors. Our numerical simulations and experiments show the following properties of domain patterns: a sea-island structure appears when the field decreases rapidly from the saturating field to the zero field, while a labyrinth structure is observed for a slowly decreasing field. The mechanism of the dependence on the field sweeping rate is discussed in terms of the concepts of crystallization.
| Original language | English |
|---|---|
| Article number | 013002 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 76 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2007 Jan |
Keywords
- Domain dynamics
- Domain pattern
- Garnet thin film
- Pattern formation
- Time-dependent field