Publication Type
Journal
Journal Name
Nano Letters
Publication Date
Page Numbers
2386 to 2390
Volume
12
Issue
5
Abstract
The technologically important exchange coupling in antiferromagnetic/ferromagnetic bilayers is
investigated for embedded nanostructures defined in a LaFeO3/La0.7Sr0.3MnO3 bilayer. Exploiting the
element specificity of soft x-ray spectromicroscopy, we selectively probe the magnetic order in the two
layers. A transition from perpendicular to parallel spin alignment is observed for these nanostructures,
dependent on size and crystalline orientation. The results show that shape-induced anisotropy in the
antiferromagnet can override the interface exchange coupling in spin-flop coupled nanostructures.
