Issue |
Europhys. Lett.
Volume 71, Number 1, July 2005
|
|
---|---|---|
Page(s) | 117 - 123 | |
Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
DOI | https://doi.org/10.1209/epl/i2005-10060-0 | |
Published online | 01 June 2005 |
Periodic magnetic anisotropy in ultrathin ferromagnetic films on faceted surfaces
1
GPS, Universités Paris 6 et 7, UMR CNRS 7588 - 2 place Jussieu 75251 Paris, France
2
MPQ, Université Paris 7, UMR CNRS 7162 - 2 Place Jussieu, 75251 Paris, France
3
LPS, UMR CNRS 8502, Université Paris XI - 91405 Orsay, France
4
CEA, DSM-DRECAM-SPCSI, Bât. 462 - Saclay, 91191 Gif-sur-Yvette, France
Corresponding author: rousset@gps.jussieu.fr
Received:
26
January
2005
Accepted:
3
May
2005
Since faceted surfaces lower the dimensionality of the surface, they are an ideal template to nanostructure magnetic stripes. In particular, it is possible to obtain an alternatively in- and out-of-plane magnetization in thin films deposited on periodically faceted surfaces. The periodicity of the surface can be replicated in the magnetization by the magnetoelastic anisotropy. The effect is particularly relevant for a film thickness close to the spin reorientation transition. In these conditions, the divergence of the magnetoelastic anisotropy near the facet edges forces in-plane magnetization regions in the faceted surface, while unfaceted surfaces corresponding to single facets present an out-of-plane easy axis. The magnetic anisotropy can thus be controlled at a nanometer scale by using a faceted substrate.
PACS: 75.70.-i – Magnetic properties of thin films, surfaces, and interfaces / 68.35.Ct – Interface structure and roughness / 68.37.Ef – Scanning tunneling microscopy (including chemistry induced with STM)
© EDP Sciences, 2005
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