Abstract
Spin-polarized scanning tunneling microscopy is employed to study the internal structure of magnetic domain walls in ultrathin Fe nanowires prepared on W(110). They are formed by pairs of winding walls in an increasing external magnetic field. Their width is governed by an equilibrium of exchange and Zeeman energy. In the relevant field range the demagnetizing energy contributes only indirectly via an increased wall width, i.e., a reduced effective anisotropy, and nonlocal effects are negligible.
- Received 4 September 2002
DOI:https://doi.org/10.1103/PhysRevB.67.020401
©2003 American Physical Society