| Issue |
EPL
Volume 85, Number 5, March 2009
|
|
|---|---|---|
| Article Number | 57006 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/85/57006 | |
| Published online | 19 March 2009 | |
Continuous Néel-to-Bloch transition in strips whose thickness increases: Statics and dynamics
1
Seagate Technology - Bloomington, MN 55435, USA
2
Department of Physics, Texas AM University - College Station, TX, 77843, USA
Corresponding author: wsaslow@tamu.edu
Received:
12
December
2008
Accepted:
17
February
2009
For strips of width 
and height h, with both exchange and the dipole-dipole interaction, we find that Néel and Bloch domain walls are locally stable. As h is increased to hc, Néel walls evolve continuously to Bloch walls by a second-order transition. It is mediated by a critical mode with 
, corresponding to motion of the domain wall center. A uniform out-of-plane rf-field couples strongly to this critical mode only in the Néel phase. Local, but not global stability relative to a crosstie phase was established.
PACS: 75.60.Ch – Domain walls and domain structure / 75.70.Ak – Magnetic properties of monolayers and thin films
© EPLA, 2009
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