| Issue |
Europhys. Lett.
Volume 75, Number 1, July 2006
|
|
|---|---|---|
| Page(s) | 119 - 125 | |
| Section | Condensed matter: structural, mechanical and thermal properties | |
| DOI | https://doi.org/10.1209/epl/i2006-10089-5 | |
| Published online | 02 June 2006 | |
Origin of the magnetic anisotropy in ferromagnetic layers deposited at oblique incidence
Laboratoire de Physique et de Spectroscopie Electronique, UMR 7014 4 rue des frères Lumière, F-68093 Mulhouse, France
Corresponding author: jl.bubendorff@uha.fr
Received:
14
February
2006
Accepted:
11
May
2006
Ferromagnetic films evaporated at oblique incidence show invariably an uniaxial in-plane magnetic anisotropy component with easy axis perpendicular to the incidence plane. Scanning Tunneling Microscopy (STM) images reveal that oblique deposition results in rough films with highly anisotropic correlation functions of the surface profile. We show that simple shape anisotropy calculations using high-quality STM roughness data as input reproduce the measured anisotropies remarkably well and unambiguously relate them to the long-ranged dipolar interactions.
PACS: 68.37.Ef – Scanning tunneling microscopy (including chemistry induced with STM) / 75.30.Gw – Magnetic anisotropy / 68.35.Ct – Interface structure and roughness
© EDP Sciences, 2006
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